Possible Causes
PINPOINT TEST W : DTC B19A6
WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.
W1 CHECK BACKREST BLOWER MOTOR SPEED CONTROL CIRCUIT FOR A SHORT TO GROUND
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect: Passenger Side Airbag In-line C219. Disconnect: Passenger Seat Backrest Blower Motor C3039. Disconnect: SCME C3265C. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-4 | Ground |
Is the resistance greater than 10,000 ohms?
Yes | GO to W2 |
|---|---|
No | REPAIR the circuit. GO to W5 |
W2 CHECK BACKREST BLOWER MOTOR SPEED CONTROL CIRCUIT AND BLOWER GROUND CIRCUIT FOR A SHORT TOGETHER
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-4 | C3265C-7 |
Is the resistance greater than 10,000 ohms?
Yes | GO to W3 |
|---|---|
No | REPAIR the circuits. GO to W5 |
W3 DETERMINE BACKREST BLOWER MOTOR OR SCME (FRONT SEAT CLIMATE CONTROL MODULE) FAILURE
Remove the backrest blower motor from the passenger seat. REFER to: Front Seat Backrest Blower Motor (501-10 Front Seats) . Remove the backrest blower motor from the driver seat and install it on the passenger seat. Connect: Passenger Seat Backrest Blower Motor C3039. Connect: SCME C3265C. Start the engine and check operation of the passenger seat climate controlled seat system.
Does the seat operate with the backrest blower motor from the other seat installed?
Yes | INSTALL a new seat backrest blower motor. REFER to: Front Seat Backrest Blower Motor (501-10 Front Seats) . GO to W5 |
|---|---|
No | GO to W4 |
W4 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.
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.