Front Seats — 2016 workshop reference 1038

S4 CHECK BACKREST BLOWER MOTOR SPEED CONTROL AND BLOWER OUTPUT CIRCUITS FOR AN INTERNAL SHORT TOGETHER

Ignition OFF. Disconnect: Passenger Seat Backrest Blower Motor C3039. Measure the component side resistance between:

Positive Lead	Measurement / Action	Negative Lead
C3039-3, Component Side Front Seats — original illustration 1, reference 1038Original colors & callouts · Select to enlarge		C3039-7, Component Side Front Seats — original illustration 2, reference 1038Original colors & callouts · Select to enlarge

Positive Lead

Measurement /

Action

Negative Lead

C3039-3, Component Side

Front Seats — original illustration 1, reference 1038Original colors & callouts · Select to enlarge

C3039-7, Component Side

Front Seats — original illustration 2, reference 1038Original colors & callouts · Select to enlarge

Is the resistance greater than 2M ohms?

Yes	GO to S5
No	INSTALL a new backrest blower motor. REFER to: Front Seat Backrest Blower Motor (501-10 Front Seats) . GO to S6

S5 CHECK THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) OPERATION

Ignition OFF. Disconnect and inspect all of the SCME connectors. Repair:

corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins as necessary pushed-out pins - install new pins as necessary

Reconnect the SCME connectors. Make sure they seat and latch correctly.

NOTE: Do not reconnect Passenger Side Airbag In-line C219 at this time. Reconnect all previously disconnected connectors. Ignition ON. Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCME. REFER to: Front Seat Climate Control Module [SCME] (501-10A Front Seats, Removal and Installation). GO to S6
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. GO to S6

S6 VERIFY THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PROVES OUT SUCCESSFULLY

REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Connect: Passenger Side Airbag In-line C219. Connect all previously disconnected connectors.

REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures).

Did the SRS prove out successfully?

Yes	Repair is complete. RETURN the vehicle to the customer.
No	REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).

DTC B19A3

Source reference 1038

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.