Pinpoint Test R: DTC C1414 - Incorrect Vehicle Id

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.

R1 CHECK FOR A HARD OR INTERMITTENT DTC
WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards.

WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.

WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.

NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Enter the following diagnostic mode on the diagnostic tool: Retrieve/Record Continuous DTCs.
- Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
- Was DTC C1414 retrieved during the on-demand self test?
- Yes : This is a hard fault. The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test. GO to R2.
- No : This is an intermittent fault. The fault condition is not present at this time. GO to R5.
R2 CHECK VEHICLE IDENTIFICATION NO. 1
NOTE: For this vehicle application, RCM C310a pin 20 should be grounded and pin 21 should have no wire attached.
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING in this article.
- Disconnect: RCM C310a.
- Disconnect: RCM C310b.
- Measure the resistance between RCM C310a pin 20, circuit JA-310A (BK/RD), harness side and ground.
- Is the resistance less than 5 ohms?
- Yes : GO to R3.
- No : REPAIR the circuit. GO to R6.
R3 CHECK VEHICLE IDENTIFICATION NO. 2
NOTE: For this vehicle application, RCM C310a pin 20 should be grounded and pin 21 should have no wire attached.
- Inspect RCM C310a harness side. Make sure there is no wire attached to pin cavity 21.
- Does cavity 21 contain a wire?
- Yes : DETERMINE the cause of incorrect vehicle harness configuration. REPAIR as necessary. GO to R6.
- No : GO to R4.
R4 CHECK THE RCM PART NUMBER
- Check the part number on the RCM against the part number listed in the master parts catalog.
- Did the part number on the RCM match the part number listed in the master parts catalog?
- Yes : INSTALL a new RCM with the same part number. REFER to RESTRAINTS CONTROL MODULE (RCM) in this article. GO to R6.
- No : INSTALL a new RCM with the correct part number. REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to R6.
R5 CHECK FOR AN INTERMITTENT FAULT
- Key in OFF position.
- Enter the following diagnostic mode on the diagnostic tool: Retrieved/Record Continuous DTCs.
- Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
- Was DTC C1414 retrieved during the on-demand self test?
- Yes : This is a hard fault. The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test. GO to R2.
- No : CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. GO to R6.
R6 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous DTCs recorded during Step R1.
- Were any additional DTCs retrieved during Step R1 ?
- Yes : Do not clear any DTCs until all DTCs have been resolved. GO to the RESTRAINTS CONTROL MODULE (RCM) DIAGNOSTIC TROUBLE CODE (DTC) TABLE in this article for pinpoint test direction.
- No : RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION in this article. REPOWER the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING in this article. PROVE OUT the system. CLEAR all DTCs.