Pinpoint Test - DTC: H — 2016 workshop reference 1844

Refer to Wiring Diagrams Cell 5 for schematic and connector information. GO to A11

No	GO to A9

A5 CHECK THE DRIVER SAFETY BELT BUCKLE SWITCH DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (OPEN 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 Driver Side Airbag (Inline) C345. Disconnect Driver Safety Belt Buckle C3201. Connect a fused jumper wire:

Click to display connectors

Lead 1	Measurement / Action	Lead 2
C3201-5		C3201-6

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 driver safety belt buckle switch circuits shorted together, a short to ground fault is normally retrieved.

Did the on-demand DTC change from B0050:13 to B0050:11?

Yes	REMOVE the fused jumper wire and GO to A8
No	REMOVE the fused jumper wire and GO to A6

A6 CHECK THE DRIVER SAFETY BELT BUCKLE SWITCH CIRCUIT FOR AN OPEN

Ignition OFF. Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect RCM C310A and C310B. Measure:

Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C310B-54		C3201-5

Is the resistance less than 0.5 ohm?

Yes	GO to A7

Source reference 1844

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.