Pinpoint Test W: Left Front Impact Sensor: Notes
Refer to appropriate Supplemental Restraint System in OEM Wiring Diagrams article, for schematic and connector information.
Normal Operation and Fault Conditions
The RCM continuously monitors the left front impact sensor circuits for the following faults:
- Open circuit
- Short to voltage
- Short to ground
- Faulted left front impact sensor
Possible Causes
- Wiring, terminals or connectors
- Left front impact sensor
- RCM
Visual Inspection
- Inspect for a damaged left front impact sensor.
- Inspect the left front impact sensor mounting and orientation.
- Inspect for damaged wiring harness(es).
- Inspect for loose or damaged connectors.
WARNING:
Incorrect repair techniques or actions can cause an accidental SRS deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.
CAUTION:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
NOTE:
Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
NOTE:
Only disconnect or reconnect SRS components when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
NOTE:
Always make sure the correct OCSM component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect OCSM component is installed, DTCs may set.
NOTE:
The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
Left Front Impact Sensor Connector - C1465
| Circuit | Pin |
|---|---|
| LF_IMP_SVRTY_SN_FD (Left Front Impact Severity Sensor Feed) - VR213 | 1(VIOLET/GREEN) |
| LF_IMP_SVRTY_SN_RTN (Left Front Impact Severity Sensor Return) - RR129 | 2(YELLOW/GRAY) |
Restraint Control Module-A (RCM-A) Connector - C310A
| Circuit | Pin |
|---|---|
| LF_IMP_SVRTY_SN_FD (Left Front Impact Severity Sensor Feed) - VR213 | 17(VIOLET/GREEN) |
| LF_IMP_SVRTY_SN_RTN (Left Front Impact Severity Sensor Return) - RR129 | 18(YELLOW/GRAY) |