This side impact (lateral acceleration) sensor is designed for Citroën and Peugeot airbag systems and is referenced under OE numbers 9665730180 and 8217G3. It provides reliable detection of lateral forces to trigger side and curtain airbags in case of a collision. Commonly searched by product codes 9665730180 and 8217G3, this sensor is a direct-fit replacement for a range of Stellantis models and is aimed at professional mechanics and DIY technicians performing safety system repairs.

Technical Information

• Manufacturer: Stellantis
• Model: Citroën C4 II, DS4, Peugeot 508
• Product Codes: 9665730180, 8217G3
• Additional Numbers: 8217G3

Fitment And Compatibility

Intended for use on selected Citroën and Peugeot models, including Citroën C4 II, DS4 and Peugeot 508. Compatibility is often confirmed by the OEM part number (9665730180 / 8217G3). Always compare the physical connector and mounting position with the original part before installation.

Function

The sensor measures lateral acceleration and impact forces and sends a signal to the airbag control module to determine whether side or curtain airbags should be deployed. Accurate and fast detection is critical for occupant protection during side collisions.

Replacement Procedure

• Disconnect the vehicle battery and wait the manufacturer-recommended time to avoid accidental airbag deployment.
• Remove interior trim panels or door trims to access the sensor (location varies by model: commonly found in the door, B-pillar area, or seat mount).
• Unplug the electrical connector and unbolt the sensor from its bracket.
• Install the replacement sensor in the exact mounting orientation; torque fasteners to manufacturer specifications.
• Reconnect the connector and reassemble trim. Reconnect the battery and clear any diagnostic codes with an appropriate diagnostic tool.

Installation Recommendations

• Always disconnect the battery before starting work and follow manufacturer safety procedures to prevent accidental airbag deployment.
• Handle the sensor and connector carefully—do not drop the sensor or damage the mounting bracket.
• Maintain correct sensor orientation and secure mounting; incorrect positioning can prevent proper activation.
• After fitting, use a diagnostic scanner to reset airbag fault codes and verify system status. If airbag warnings persist, recheck connections and mounting.
• Use only original-equivalent fasteners and avoid overtightening to prevent sensor damage.

Why This Part Most Commonly Fails

Side impact sensors can fail or become unreliable for several reasons: physical damage from previous collisions, corrosion or water ingress into connectors, wiring harness damage, or mechanical loosening of the mounting. After any deployment or significant side-impact event the sensor should be inspected and typically replaced, as its accuracy and safety function may be compromised.

Part description

This DELPHI acceleration/impact sensor (ABL) is an important element of the passive safety system – it evaluates the acceleration in the event of an impact and transmits the information to the control system so that safety features such as airbags and pyrobelts can be activated. If you are dealing with a malfunction of the airbag system or replacement after damage, a correctly selected sensor is key to proper function and safety.

The part is suitable for Peugeot 307 CC according to the listed product codes. When choosing, we recommend that you always compare the numbers on the original part – for these sensors, matching the markings is essential.

Technical information

• Manufacturer: DELPHI
• Model: Peugeot 307 CC
• Other numbers: NFP

Product codes

• Product codes: 9644904380, 5WK42991, 8216Z2

Installation recommendations

Generally/typically for crash sensors and airbag system components, installation requires the utmost care and strict adherence to safety procedures. The exact procedure may vary depending on the specific design of the car.

1) Before assembly

• Check if the product numbers (9644904380 / 5WK42991 / 8216Z2) match the old part.
• Visually verify that the sensor is not cracked, deformed, bent or mechanically damaged.
• Check the connector and pins – they must not be bent, oxidized or loose.
• If the car has been in an accident, check that there are no damaged wiring/connectors in the vicinity (typically the harness to the sensor).

2) Necessary tools and materials

• Ordinary hand tools (ratchet/extension according to design)
• Suitable means for gentle cleaning of connectors (without aggressive chemicals)
• Diagnostics to check the SRS/airbag system (to verify function after installation)

3) Step-by-step assembly procedure

1. Turn off the ignition and secure the vehicle against movement.
2. Disconnect the battery and wait a reasonable amount of time for the airbag system to deactivate (according to the service procedure).
3. Access the original sensor (specific location varies by design).
4. Disconnect the electrical connector carefully – do not pull on the wiring.
5. Dismantle the original sensor.
6. Compare the old and new piece (numbers, connector, mounting).
7. Mount the sensor in its original position and seat it precisely in the holder.
8. Connect the connector so that it clicks properly and without straining the wiring.
9. Check that the surrounding wiring harness is not pinched and is routed securely.
10. Connect the battery.

• 4) Post-assembly checks and test drive/function verification

  • Turn on the ignition and watch the airbag/SRS light – it must behave as standard according to the car.
  • Run a diagnostic check and verify that the system is not reporting errors related to the sensor or its circuitry.
  • If the airbag light does not come on/off normally, do not continue to use the car until the system is professionally inspected.

  5) The most common assembly mistakes + how to avoid them

  • Not disconnecting the battery before working on the SRS system → always disconnect and observe the safety pause according to the procedure.
  • Exchanging the part according to appearance without checking the number → the matching of codes (9644904380 / 5WK42991 / 8216Z2) always decides.
  • Damage to the connector/pins during disassembly → disconnect carefully, do not pull on the cables.
  • Bad seating in the mounting → the sensor must be mounted precisely and firmly in its original position.

  Reasons why the part is damaged

  • Accident/collision – the sensor may be mechanically damaged or out of tolerance after a collision.
  • Moisture and corrosion in the connector – leaks will cause poor contact and SRS system errors.
  • Damage to the wiring (broken wire, pinched harness) – often manifests as sensor failure.
  • Incompetent handling during previous repairs – damaged pins, unclosed connector, inappropriate cleaning.
  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/sensor-side-impact-sensor-9646768980-8216nz-2/ Mon, 05 Jan 2026 03:03:11 +0000 https://www.usedpartsvendor.com/uncategorized/sensor-side-impact-sensor-9646768980-8216nz-2/ Side Impact Sensor (sensor) for Citroën and Peugeot vehicles

  High-quality Side Impact Sensor designed for Citroën and Peugeot models. This airbag crash sensor is listed under OEM references 9646768980, 604288200 and variant codes 8216NZ / 8216GH. Intended for professional workshops and experienced DIY mechanics who service occupant protection systems. The sensor restores correct detection of lateral impacts to ensure reliable airbag deployment and resets crash-related fault codes when replaced with proper diagnostic procedures. Frequently searched by part numbers 9646768980, 604288200, 8216NZ and 8216GH.

  Technical Information

  • Manufacturer: Stellantis (Citroën / Peugeot)
  • Model: Citroën C4, Citroën C5, Peugeot 307, Peugeot 407
  • Product Codes: 9646768980, 604288200
  • Other Numbers: 8216NZ, 8216GH

  Function And Application

  The side impact sensor monitors lateral acceleration and sends a signal to the airbag control unit when a significant side collision is detected. Its role is critical for triggering side and curtain airbags at the correct time during an impact. These sensors are typically mounted in the B‑pillar, door area, or lower body shell depending on the model and must be installed with correct orientation and secure electrical connections to work reliably.

  Compatibility And Fitment

  Compatible with selected Citroën and Peugeot models listed above. Always verify the part number printed on the original sensor — customers commonly search using OEM numbers 9646768980 or 604288200 and reference codes 8216NZ / 8216GH to confirm fitment.

  Replacement Procedure

  • Disconnect the vehicle battery and wait at least 2–10 minutes to allow the airbag system capacitors to discharge (follow vehicle manufacturer recommendations).
  • Access the sensor by removing interior trim panels in the B‑pillar or door area; keep fasteners and clips for reinstallation.
  • Unplug the electrical connector and remove the sensor mounting screws or bolts.
  • Fit the new sensor in the correct orientation, secure fasteners without over‑tightening, and reconnect the electrical connector.
  • Reconnect the battery and perform a diagnostic scan. Clear any crash codes and confirm communication between the sensor and the airbag control module.

  Installation Recommendations

  Install the sensor using correct manufacturer procedures and avoid bending or damaging the connector and wiring harness. Use a compatible diagnostic tool to read and clear fault codes and to verify sensor signals after installation. For Citroën/Peugeot vehicles, use PSA‑compatible diagnostic equipment (DiagBox/Lexia/PP2000) when possible to confirm correct system status. If unsure about airbag system work, have the replacement performed by a qualified technician.

  Most Common Cause Of Failure

  Side impact sensors normally last the life of the vehicle but can fail after a collision, from water ingress, corrosion, connector damage, or mechanical shock. Faulty wiring, poor grounding or long‑term exposure to moisture are common contributors. After an accident the sensor may be mechanically damaged or its calibration lost, requiring replacement and diagnostic reset.

  Why Choose This Part

  OE‑reference compatibility and clear product codes make this sensor easy to find and replace. Suitable for professional repairs and quality DIY servicing where correct airbag function is essential. Searching by OEM numbers 9646768980, 604288200, 8216NZ or 8216GH will help you quickly locate the correct unit for Citroën C4, C5 and Peugeot 307, 407 applications.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/side-impact-sensor-sensor-9666370880-618293300-8217f6-2/ Fri, 14 Nov 2025 03:33:17 +0000 https://www.usedpartsvendor.com/uncategorized/side-impact-sensor-sensor-9666370880-618293300-8217f6-2/ Side impact sensor for the airbag system for Citroën and Peugeot vehicles.

  High-quality side impact sensor supplied by Autoliv, compatible with a range of Citroën and Peugeot models. This sensor (OE references 9666370880, 618293300, 8217F6) detects lateral acceleration and transmits the signal to the airbag control unit to ensure timely deployment of side airbags in the event of a collision. Designed as a direct-fit replacement for workshop repairs and DIY servicing, the sensor restores correct crash detection and fault-free communication with the airbag system when installed correctly.

  Technical Information

  • Manufacturer: Autoliv (used by Stellantis OEM applications)
  • Model: Side Impact Sensor
  • Product Codes: 9666370880, 618293300, 8217F6
  • Other Numbers: 8217.F6

  Fitment

  Typical fitment includes various Citroën and Peugeot models such as Citroën C3 II, Citroën C3 Picasso, Citroën C5 X7 and Peugeot 308. Always confirm the part number against the vehicle’s existing sensor before installation.

  Function And Application

  The side impact sensor monitors lateral acceleration and impact forces at the vehicle sides. When a threshold is exceeded, the sensor sends a signal to the airbag control module to trigger side airbag and curtain deployment. Reliable sensor operation is critical for occupant protection and for preventing false deployments or system faults.

  How The Sensor Is Replaced

  • Disconnect the vehicle battery and wait the manufacturer-recommended time to prevent accidental airbag deployment and avoid electrical damage.
  • Access the sensor location—commonly mounted in the B-pillar, door frame, or seat base—by removing interior trim panels.
  • Unplug the electrical connector, remove mounting bolts, and replace the old sensor with the new unit. Transfer any mounting brackets if required.
  • Reconnect the connector, reassemble trim, reconnect the battery and perform an airbag system check with a diagnostic tool to clear fault codes and verify communication.

  Installation Recommendations

  • Always disconnect the battery before starting work and follow manufacturer safety procedures to avoid personal injury or damage to the SRS system.
  • Handle the sensor and connector carefully—avoid impacts, contamination, or pulling on wires.
  • Ensure secure mechanical mounting and clean electrical contacts. Replace any damaged clips or connectors.
  • After installation, use an appropriate diagnostic scanner to verify the airbag control unit recognizes the sensor and to clear any stored diagnostic trouble codes.

  Common Causes Of Failure

  • Physical Damage From Collision: Sensors are often damaged in side impacts or door collisions and require replacement after any significant accident.
  • Water Ingress And Corrosion: Moisture entering through seals or damaged bodywork can corrode connectors or sensor internals, causing intermittent faults.
  • Connector Or Wiring Damage: Chafed or loose wiring and oxidized connectors interrupt the communication between the sensor and airbag control unit.
  • Age And Environmental Stress: Long-term vibration, temperature cycles and contaminants can degrade the sensor electronics over time.

  Buying the correct side impact sensor by OE number (9666370880 / 618293300 / 8217F6) helps ensure direct fitment and reliable airbag system performance. Ideal for professional workshops and experienced DIYers performing safety-related repairs.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/citroen-peugeot-8651a001-8216rx-sensor-sensor/ Thu, 11 Sep 2025 02:10:02 +0000 https://www.usedpartsvendor.com/uncategorized/citroen-peugeot-8651a001-8216rx-sensor-sensor/ Sensor (sensor) of a frontal impact for Citroën C-Crosser and Peugeot 4007

  Original SRS impact sensor for Citroën C – Crosser and Peugeot 4007. Part with codes 8651A001 / 8216RX is used to detect impact overload and evaluate the activation of the appropriate airbags (according to the location). Suitable as a replacement for a defective sensor signaling the airbag error or after the event when the sensor was activated.

  The impact sensor is a key part of the SRS/Airbag system. In the accident, it measures the acceleration of the body and transmits the information to the airbag control unit, which then decides to launch the front or side/head airbags. Typical manifestations of its defects are the lit airbag indicator, stored error code of impact sensor in diagnostics and non -functional SRS system until the fault is removed.

  Assembly and safety: Work on SRS requires increased caution. Always disconnect the battery before replacement and wait for the recommended time, check the condition of the connectors and cabling and pay attention to clean and fixed sensor in the prescribed position. After installation, do the diagnostic inspection and delete the error codes according to the manufacturer’s service documentation. It is recommended to verify the compatibility according to the VIN and the exact location of the sensor in the vehicle.

  This part is suitable for cars from the production period approximately 2007–2012 (platform shared with Mitsubishi Outlander I/II). Thanks to OEM of origin, it fits into the existing wiring without additional connectors.

  technical information

  • Manufacturer: PSA Citroën Peugeot (OEM)
  • Model: Citroën C -Crosser; Peugeot 4007
  • Product codes: 8651A001; 8216rx
  • Other numbers: –

  Condition: Original part of primary production, designed as a substitute component used. An ideal choice for high -quality airbags repair without compromising in compatibility.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/citroen-peugeot-8651a143-8216rw-sensor-sensor/ Thu, 11 Sep 2025 02:07:17 +0000 https://www.usedpartsvendor.com/uncategorized/citroen-peugeot-8651a143-8216rw-sensor-sensor/ Sensor (sensor) of a frontal impact for Citroën C-Crosser and Peugeot 4007

  The original SRS/airbag sensor for the Citroën C -Crosser and Peugeot 4007. This sensor monitors the body’s slow slowing and provides key data to the airbag control unit to safe and timely launching the front airbags and belt pretensioners. Ideal solution in the luminous airbag lightbag and impact sensor or impact sensor.

  The sensor is located in front of the car behind the bumper on the transverse beam/radiator panel. In practice, it often leaves after a minor accident, corrosion of attachment or due to cabling damage. A typical manifestation is the permanently lit airbag indicator and stored defect on the “front Impact/Crash Sensor”. The advantage of the original part is accurate assembly without modifications and proper communication with the SRS unit.

  Mounting tips: Always disconnect the battery before any handling and wait for at least 10 minutes to discharge SRS capacitors. Do not turn on the ignition with disconnected airbag connectors. After replacement, it is usually necessary to clear the error code in the airbag control unit with diagnostics; The sensor itself is usually not coded. Check clean and solid grounding and undamaged yellow airbag connector.

  Compatibility: Citroën C -Crosser and Peugeot 4007 across engines and equipment (approx. For 100% conformity security, compare the part number on your sensor with the codes below.

  technical information

  • Manufacturer: PSA (Citroën/Peugeot)
  • Model: Citroën C -Crosser; Peugeot 4007
  • product codes: 8216RW, 1607753780
  • additional numbers: 8651A143

  Search keywords: impact sensor, front impact sensor, crash sensor, airbag sensor, front sensor SRS, Citroën C -Crosser, Peugeot 4007, 8216RW, 1607753780, 8651A143. If you are unsure, send a VIN – you will verify the right compatibility with your car.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/side-impact-sensor-sensor-1400576280-8216nz/ Fri, 29 Aug 2025 02:05:51 +0000 https://www.usedpartsvendor.com/uncategorized/side-impact-sensor-sensor-1400576280-8216nz/ TEMIC Side Impact Sensor for Airbag Systems in Citroën and Peugeot Vehicles. ABL Acceleration Sensor.

  This used Side Impact Sensor is designed for deployment control of side airbags and side curtain systems on compatible Citroën and Peugeot models. It registers lateral acceleration impulses and transmits a trigger signal to the airbag control unit when a qualifying side impact is detected. The sensor is an OEM TEMIC type, supplied with reference numbers commonly searched by workshops and DIY mechanics (1400576280, 8216NZ), making it easy to find and replace during collision repairs or when diagnosing airbag faults.

  Technical Information

  • Manufacturer: TEMIC
  • Model: Citroën C2, Citroën C3, Citroën C3 Pluriel, Citroën C8, Peugeot 807
  • Product Codes: 1400576280
  • Other Numbers: 8216NZ

  Function And Fitment

  The side impact (lateral) sensor is an acceleration sensor dedicated to detecting rapid lateral deceleration. It communicates directly with the vehicle’s airbag control unit to permit timely deployment of side-impact protection. Typical mounting locations are the B‑pillar inner structure, door inner panel, or seat rail area depending on model and year. Correct orientation and secure mechanical fixation are essential for reliable operation.

  Common Failure Causes

  • Physical damage from previous collisions—impacts can deform or damage the sensor housing or mounting points.
  • Connector corrosion or wiring faults—moisture ingress or abrasion may interrupt the signal path.
  • Water ingress—especially on units mounted in door areas or lower pillars, leading to electrical shorting or internal corrosion.
  • Incorrect handling during repairs—improper removal or impact to the sensor can alter calibration or break internal components.
  • Rarely, electronic component failure due to age or manufacturing defects.

  Installation Recommendations

  • Always Disconnect The Battery Before Work: Remove the negative terminal and wait at least two minutes (or follow the vehicle manufacturer’s specified delay) to ensure the airbag system is de‑energized.
  • Preserve Sensor Orientation: Install the replacement with the same orientation and mounting position as the original—incorrect alignment can prevent correct triggering.
  • Use Correct Fasteners And Torque: Secure the sensor to factory torque values where available; avoid over‑tightening which can damage the housing.
  • Inspect Wiring And Connectors: Clean or replace corroded connectors and repair damaged wiring to restore reliable communication with the airbag control unit.
  • Clear And Verify Fault Codes: After installation, clear airbag system fault codes and perform a diagnostic check with a suitable scanner to confirm system readiness. If warning lights persist, diagnose further before returning the vehicle to service.
  • Safety Note: Airbag system work can be hazardous. If unsure, have installation and verification performed by a qualified technician with appropriate diagnostic equipment.

  Why Replace This Part

  Side impact sensors are replaced primarily after collisions where side airbags deployed or were at risk of deployment, or when the airbag warning lamp indicates a fault traced to the lateral sensor circuit. Replacements are also common when corrosion or connector damage causes intermittent signals or permanent faults. Because these sensors directly affect occupant safety, timely and correct replacement is critical.

  Compatibility Notes

  The part is listed for multiple Citroën and Peugeot models and is often searched by its product codes 1400576280 and 8216NZ. Sensor variants can differ by side (left/right), production year or trim—always match the exact part number to the vehicle’s repair documentation or parts catalogue before fitting.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/side-impact-sensor-sensor-9665103780-610797600-8216vl/ Thu, 24 Apr 2025 02:05:34 +0000 https://www.usedpartsvendor.com/uncategorized/side-impact-sensor-sensor-9665103780-610797600-8216vl/ Side Impact Sensor For Citroën And Peugeot Vehicles.

  Overview

  This Side Impact Sensor is a direct-fit safety component designed for Citroën and Peugeot vehicles. It monitors lateral acceleration and rapid deceleration during side collisions and provides a critical input to the airbag control system to trigger side airbags and seatbelt pretensioners when required. The unit is commonly referenced by manufacturers’ part numbers and is often searched for under those codes.

  Key Benefits

  • Direct replacement for matching OEM part numbers for easy identification.
  • Essential safety function: ensures timely deployment of side airbags and pretensioners in side impacts.
  • Fits into original mounting points and electrical connectors for straightforward installation by professionals or experienced DIYers.

  Replacement Procedure (General Guidance)

  Replacing a Side Impact Sensor typically involves the following steps. These are general guidelines — always follow the vehicle manufacturer’s workshop manual for exact procedures and safety precautions.

  1. Park The Vehicle On A Level Surface And Remove The Key From Ignition.
  2. Disconnect The Negative Battery Terminal And Wait Several Minutes To Allow The Airbag System Capacitors To Discharge.
  3. Remove Interior Trim Panels (Usually Around The B‑Pillar Or Door Area) To Access The Sensor Mounting Location.
  4. Unplug The Electrical Connector And Unscrew The Sensor From Its Mounting Bracket.
  5. Install The New Sensor In The Correct Orientation, Secure The Fasteners To The Specified Torque, And Reconnect The Connector.
  6. Reassemble Trim Panels, Reconnect The Battery, And Perform Any Required System Checks Or Diagnostics Per The Manufacturer’s Procedure.

  Technical Information

  • Manufacturer: Stellantis (Citroën, Peugeot)
  • Model: Citroën C4 Picasso (Example Application)
  • Product Codes: 9665103780
  • Additional Numbers: 610797600, 8216VL

  Common Failure Modes And Frequency

  Side impact sensors are engineered to be durable, but they can fail for several reasons. The most frequent causes include physical damage from a prior collision, connector or wiring corrosion due to moisture ingress, and impact to the mounting area that alters sensor alignment or integrity. Failures are relatively uncommon in undamaged vehicles, but sensors subjected to shocks, water, or poor electrical connections will show faults more often.

  Function And Importance

  The sensor detects lateral acceleration and provides immediate signals to the airbag control module. Accurate and timely input from the side impact sensor is essential for correct side airbag and pretensioner deployment, which significantly reduces injury risk in side collisions.

  Installation Recommendations

  • Always Disconnect The Battery Before Starting Work And Follow Manufacturer Safety Procedures To Prevent Accidental Airbag Deployment.
  • Handle The Sensor And Airbag Connectors With Care; Avoid Excessive Force And Ensure Connectors Are Clean And Fully Seated.
  • Fit The Sensor In The Correct Orientation And Use The Correct Fasteners. If Torque Values Are Required, Refer To The Workshop Manual.
  • After Replacement, Perform Diagnostic Checks Using Appropriate Diagnostic Tools To Confirm The Airbag System Is Fault‑Free.

  Why This Part Is Often Searched By Part Number

  Airbag And Impact Sensors Are Safety‑Critical Parts That Are Frequently Identified By OE Part Numbers When Sourcing Replacements. Using The Exact Product Codes (9665103780, 610797600, 8216VL) Helps Ensure Accurate Fitment And Fast Identification In Parts Catalogs.

  Who Should Install

  This Part Is Intended For Professional Auto Technicians And Experienced DIYers Comfortable Working With Airbag Systems. If You Are Unsure About Any Step, Consult A Qualified Technician Or The Manufacturer’s Workshop Documentation.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/sensor-side-impact-sensor-temic-1490426080-8216nz-2/ Sun, 23 Feb 2025 03:02:31 +0000 https://www.usedpartsvendor.com/uncategorized/sensor-side-impact-sensor-temic-1490426080-8216nz-2/ Side impact sensor for airbag for Citroën and Peugeot vehicles.

  This TEMIC side impact sensor (part number 1490426080 / 8216NZ) is an OE‑style crash sensor used on a range of Stellantis Citroën and Peugeot models. Designed for workshop use and competent DIY mechanics, the sensor monitors lateral acceleration and collision forces to trigger side airbags and related restraint systems. Replacement units restore correct crash detection and help clear airbag fault codes when fitted and initialized correctly. Commonly searched by product codes 1490426080 and 8216NZ, this sensor is a frequent service item after side impacts or when the airbag warning light is present.

  Technical Information

  • Manufacturer: TEMIC
  • Model: Citroën C2, Citroën C3, Citroën C3 Pluriel, Citroën C8, Peugeot 1007, Peugeot 807
  • Product Codes: 1490426080
  • Other Numbers: 8216NZ

  Function And Application

  The side impact sensor detects rapid lateral acceleration and impact forces. When a side collision is detected, the sensor sends an electronic signal to the airbag control unit to deploy side airbags and activate seatbelt pretensioners if required. Proper operation is critical for occupant protection and to prevent persistent airbag warning lights.

  Signs Of A Faulty Sensor

  • Illuminated airbag warning light on the dashboard.
  • Error codes related to side impact sensors in the airbag control unit.
  • Intermittent faults after exposure to moisture or after a previous side impact.

  Installation Recommendations

  Replacement should be performed by a trained technician or an experienced DIY mechanic familiar with SRS systems. General replacement steps:

  • Park the vehicle on a level surface, switch off the ignition and remove the key.
  • Disconnect the negative battery terminal and wait several minutes to allow the SRS capacitors to discharge.
  • Remove the required interior trim panels (door trim, B‑pillar cover or seat trim) to access the sensor—location varies by model.
  • Unplug the electrical connector and remove the fixing bolts or clips securing the sensor.
  • Fit the new sensor in the original position, secure with the correct fasteners and reconnect the electrical plug.
  • Reassemble trim panels, reconnect the battery and clear airbag fault codes using a diagnostic tool. Verify SRS system status and perform any required sensor initialization as per vehicle manufacturer procedures.

  Avoid handling the sensor connector pins roughly and protect the unit from moisture and dirt during installation. Use a scan tool to confirm proper communication with the airbag control module after fitting.

  Why These Sensors Fail

  • Damage From Side Impact: Direct collision forces can permanently damage the sensor or its mounting.
  • Water Ingress And Corrosion: Moisture entering connectors or the sensor housing causes electrical faults.
  • Connector Or Wiring Damage: Chafing, broken wires or poor contacts lead to intermittent or permanent failures.
  • Aging And Environmental Stress: Long‑term exposure to vibration, temperature cycles and road salts can degrade components.

  Replacing the sensor with the correct part number (1490426080 / 8216NZ) and ensuring secure mounting and clean electrical connections will restore reliable crash detection on compatible Citroën and Peugeot models.

  ]]> https://www.usedpartsvendor.com/electro-components/sensors/airbag/side-impact-sensor-sensor-citroen-peugeot-9665617880-6546n4/ Fri, 11 Oct 2024 02:07:23 +0000 https://www.usedpartsvendor.com/uncategorized/side-impact-sensor-sensor-citroen-peugeot-9665617880-6546n4/ Side impact sensor for Airbag for Citroën and Peugeot vehicles. ABL acceleration sensor.

  Product Overview

  The Side Impact Sensor (Part Numbers: 9665617880 / 6546N4) is an OEM-style lateral acceleration sensor used on Citroën and Peugeot vehicles such as Citroën C3 and Peugeot 207. It detects lateral forces during a side impact and supplies the crash signal required to deploy Side Airbag and Seatbelt Pretensioner systems. The sensor is a safety-critical component designed to provide fast and reliable measurements of lateral acceleration to ensure timely occupant protection.

  How It Is Replaced

  Replacement generally involves removing interior trim panels to access the sensor (commonly mounted in the B-Pillar or door structure), disconnecting the electrical connector, unbolting the old sensor and fitting the new unit in the correct orientation. After mechanical replacement, clear stored fault codes and perform a diagnostic check to confirm correct communication with the Airbag control unit.

  Technical Information

  • Manufacturer: Stellantis (Citroën / Peugeot)
  • Model: Citroën C3; Peugeot 207
  • Product Codes: 9665617880, 6546N4
  • Other Numbers: 6546N4

  Installation Recommendations

  • Always Disconnect The Battery Before Starting Work And Follow The Vehicle Manufacturer’s Procedure To Prevent Accidental Airbag Deployment.
  • Use Plastic Trim Tools To Remove Interior Panels To Avoid Damage To Trim And Fasteners.
  • Note The Orientation And Position Of The Old Sensor Before Removal; Install The New Sensor In The Same Orientation And Torque Fasteners To Manufacturer Specification.
  • After Fitment, Clear Airbag Fault Codes And Perform A Full Diagnostic Check With A Compatible Tool. Where Available, Use PSA Diagnostic Equipment For Complete System Verification.
  • Because This Is A Safety-Critical Component, Professional Installation Is Recommended If You Are Not Experienced With Supplemental Restraint Systems.

  Most Common Failure Reasons

  Side Impact Sensors most commonly fail following a side collision, as a result of mechanical damage, or due to water ingress and connector corrosion. Wiring harness damage and intermittent electrical connections can also cause sensor faults. Typical Symptoms Include An Illuminated Airbag Warning Light, Stored Crash Sensor Fault Codes, Or Disabled Side Airbag Circuits.

  Notes For Search And Identification

  This item is commonly searched by part numbers 9665617880 and 6546N4. When purchasing a replacement Side Impact Sensor for Citroën C3 or Peugeot 207, verify the part number to ensure compatibility with the vehicle’s airbag system.

  ]]>