Pinpoint Test K: DTCs B0001:4A, B0010:4A, B0050:4A, B0090:4A, B00D5:4A, B00DF:4A, B1212:4A, B1213:4A and U3000:4A
Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS)
Pinpoint Tests
Pinpoint Test K: DTCs B0001:4A, B0010:4A, B0050:4A, B0090:4A, B00D5:4A, B00DF:4A, B1212:4A, B1213:4A and U3000:4A
Refer to Wiring Diagram Set 46, Supplemental Restraint System for schematic and connector information. Diagrams By Number
Normal Operation
The Restraints Control Module (RCM) monitors all of Supplemental Restraint System (SRS) device connections. If the RCM detects a connection or device connected that is not stored in memory, the RCM will set a DTC and send a message to the Instrument Cluster (IC) module to illuminate air bag warning indicator.
B00DF:4A-B1213:4A / U3000:4A:
This pinpoint test is intended to diagnose the following:
- Incorrect RCM for vehicle
- RCM not configured
PINPOINT TEST K: DTCs B0001:4A, B0010:4A, B0050:4A, B0090:4A, B00D5:4A, B00DF:4A, B1212:4A, B1213:4A AND U3000:4A
WARNING: Never probe the electrical connectors on air bag, Safety Canopy(R) or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of serious personal injury or death.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: SRS components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test. Inspection and Verification
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K1 RETRIEVE RCM DTCs
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was any incorrect component installed DTCs retrieved on-demand during self-test?
Yes
This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the self-test. GO to K2.
No
This is an intermittent fault when present as a CMDTC only. GO to K6.
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K2 CHECK VEHICLE HISTORY
- Ignition OFF.
- Check the vehicle repair history.
- Has a new RCM or ABS module been installed during this or a prior repair?
Yes
GO to K3.
No
GO to K5.
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K3 CHECK RCM AND ABS
- Gain access to the RCM module and check the part number on the RCM module against the part number listed in the master parts catalog. Refer to the Restraints Control Module (RCM) Service and Repair procedure.
- Gain access to the ABS module and check the part number on the ABS module against the part number listed in the master parts catalog.
- Verify the correct vehicle application.
- Do the RCM and ABS modules match the vehicle application and do the part numbers on the RCM and ABS modules match the part number listed in the master parts catalog?
Yes
GO to K4.
No
INSTALL the correct RCM or ABS module. REFER to Restraints Control Module (RCM) Service and Repair or the ABS Module Removal and Installation procedure in Antilock Brakes / Traction Control Systems. GO to K7.
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K4 CHECK RCM
- Ignition ON.
- Carry out Programmable Module Installation (PMI) for the RCM. Refer to Information Bus. Programming and Relearning
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
- Was any incorrect component installed DTCs retrieved on-demand during self-test?
Yes
GO to K5.
No
Fault corrected. GO to K7.
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K5 CONFIRM THE RCM FAULT
NOTE: Make sure all restraint system components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering Service and Repair.
- Prior to reconnecting any previously disconnected SRS component:
- inspect connector(s) (including any in-line connectors) for pushed out, loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- inspect C310A and C310B connector position assurance lever/lock for correct operation. Refer to Restraints Control Module (RCM) Service and Repair.
- repair any concerns found.
Refer to Wiring Diagram Set 5, Connector Repair Procedures for schematic and connector information. Diagrams By Number
- Connect: Any Previously Disconnected SRS Component.
- Connect: RCM C310A and C310B.
- Repower the SRS. Do not prove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering Service and Repair.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was the original DTC retrieved on-demand during self-test?
Yes
INSTALL a new RCM. REFER to Restraints Control Module (RCM) Service and Repair. GO to K7.
No
In the process of diagnosing the fault, the fault condition has become intermittent.
CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. REPAIR any intermittent wiring, terminal or connector concerns found. GO to K6.
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K6 CHECK FOR INTERMITTENT FAULTS
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Was any incorrect component installed DTCs retrieved on-demand during self-test?
Yes
INSTALL new RCM. REFER to Restraints Control Module (RCM) Service and Repair. GO to K7.
No
CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. REPAIR any intermittent wiring, terminal or connector concerns found. GO to K7.
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K7 CHECK FOR ADDITIONAL SRS DTCs
- Ignition OFF.
- WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Reconnect all SRS components (if previously disconnected).
- If previously directed to depower the SRS, repower the SRS. Do notprove out the SRS at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering Service and Repair.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM.
- Are any RCM DTCs retrieved?
Yes
Do not clear any DTCs until all DTCs have been resolved. GO to the Restraints Control Module (RCM) DTC Chart for pinpoint test direction. Diagnostic Trouble Code Tests and Associated Procedures
No
CLEAR all RCM CMDTCs. PROVE OUT the SRS. Repair is complete. RETURN the vehicle to the customer.
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