PINPOINT TEST X: DTC B2984 — DEPLOYABLE STEERING COLUMN CIRCUIT OPEN
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.
Test Step Result / Action to Take
X1 CHECK FOR ON-DEMAND AND CONTINUOUS DTCs
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: On-Demand Self Test.
Enter the following diagnostic mode on the diagnostic tool: Retrieve/Record Continuous DTCs.
Was DTC B2984 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 X2.
No
This is an intermittent fault. The fault condition is not present at this time. GO to X6.
X2 CHECK THE DEPLOYABLE STEERING COLUMN
Ignition OFF.
Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Disconnect: Deployable Steering Column C2318.
Connect: Restraint System Diagnostic Tool 418-F395 to the Deployable Steering Column C2318.
Repower the system. Do not prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self-Test.
Was DTC B2984 retrieved during the on-demand self test?
Yes
GO to X3.
No
INSTALL a new steering column assembly. REFER to Section 211-04. GO to X7.
X3 CHECK CIRCUIT 2136 (OG) FOR AN OPEN
Ignition OFF.
Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Disconnect: RCM C310a and C310b.
Disconnect: Restraint System Diagnostic tool 418-F395 from the Deployable Steering Column C2318.
Measure the resistance between RCM C310a pin 21, circuit 2136 (OG), harness side and deployable steering column C2318, circuit 2136 (OG), harness side.
Is the resistance less than 0.5 ohms?
Yes
GO to X4.
No
REPAIR circuit 2136 (OG). GO to X7.
X4 CHECK CIRCUIT 2137 (RD/LB) FOR AN OPEN
Measure the resistance between RCM C310a pin 22, circuit 2137 (RD/LB), harness side and deployable steering column C2318, circuit 2137 (RD/LB), harness side.
Is the resistance less than 0.5 ohm?
Yes
GO to X5.
No
REPAIR open in circuit 2137 (RD/LB). GO to X7.
X5 CONFIRM THE RCM FAULT
NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors and the RCM electrical connectors are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.
Ignition OFF.
Connect: Restraint System Diagnostic Tool 418-F395 to the Deployable Steering Column C2318 .
Repower the system. Do not prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
Was DTC B2984 retrieved during the on-demand self test?
Yes
INSTALL a new RCM. REFER to Restraints Control Module (RCM) in this section. GO to X7.
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 X7.
X6 CHECK FOR AN INTERMITTENT FAULT
Ignition OFF.
Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Disconnect: Deployable Steering Column C2318.
Connect: Restraint System Diagnostic Tool 418-F395 to the Deployable Steering Column C2318.
Repower the system. Do not prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self-Test.
Was DTC B2984 retrieved during the on-demand self test?
Yes
This is a hard fault. The fault condition is now 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 X3.
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 X7.
X7 CHECK FOR ADDITIONAL DTCs
Refer to the continuous DTCs recorded during Step X1.
Were any continuous DTCs retrieved during Step X1?
Yes
Do not clear any DTCs until all DTCs have been resolved. GO to the Restraints Control Module (RCM) Diagnostic Trouble Code (DTC) Priority Table in this section 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 section. REPOWER the system. REFER to Supplemental Restraint System (SRS) Depowering and Repowering in this section. PROVE OUT the system. CLEAR all | 
