NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
Click to display connectors
Lead 1 | Measurement / Action | Lead 2 |
|---|---|---|
C9031-1 | C9031-2 |
Repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures). Ignition ON. Using a diagnostic scan tool, perform RCM self-test. DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the LH side air curtain circuits shorted together, a low resistance fault is normally retrieved.
Did the on-demand DTC change from B1405:13 to B1405:1A?
Yes | REMOVE the fused jumper wire and GO to A11 |
|---|---|
No | REMOVE the fused jumper wire and GO to A12 |
A8 CHECK THE LH (LEFT-HAND) SIDE AIR CURTAIN DEPLOYMENT CONTROL DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED)
NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
Ignition OFF. Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect LH Side Air Curtain C9031. Repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures). Ignition ON. Using a diagnostic scan tool, perform RCM self-test. DIAGNOSTIC TIP: When viewing Diagnostic Trouble Codes (DTCs) with the LH side air curtain disconnected, an open circuit fault is normally retrieved.
Did the on-demand DTC change from B1405:11 to B1405:13?
Yes | GO to A11 |
|---|---|
No | GO to A9 |
A9 CHECK THE LH (LEFT-HAND) SIDE AIR CURTAIN CIRCUITS FOR A SHORT TO GROUND
Ignition OFF. Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect RCM C310A and C310B.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.