DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B19A2 Passenger Seat Back Blower Speed Short to Battery | If the passenger seat backrest blower speed circuit is shorted to voltage, the SCME shuts down the passenger seat system and sets this DTC. |
Possible Causes
Wiring, terminals or connectors Backrest blower motor SCME
PINPOINT TEST S : DTC B19A2
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.
S1 CHECK BACKREST BLOWER MOTOR SPEED CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect: Passenger Side Airbag In-line C219. Disconnect: SCME C3265C. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-4 | Ground |
Is any voltage present?
Yes | GO to S2 |
|---|---|
No | GO to S3 |
S2 CHECK BACKREST BLOWER MOTOR SPEED CONTROL CIRCUIT FOR A SHORT TO VOLTAGE WITH THE CIRCUIT ISOLATED
Ignition OFF. Disconnect: Passenger Seat Backrest Blower Motor C3039. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-4 | Ground |
Is any voltage present?
Yes | REPAIR the circuit. GO to S6 |
|---|---|
No | GO to S3 |
S3 CHECK BACKREST BLOWER MOTOR SPEED CONTROL AND BLOWER OUTPUT CIRCUITS FOR A SHORT TOGETHER
Ignition OFF. Disconnect: Passenger Seat Backrest Blower Motor C3039. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-4 | C3265C-8 |
Is the resistance greater than 10,000 ohms?
Yes | GO to S4 |
|---|---|
No | REPAIR the circuits. GO to S6 |
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.