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 B19A5
Refer to Wiring Diagrams Cell 119 for schematic and connector information.
Normal Operation and Fault Conditions
The SCME supplies voltage and ground to the passenger seat cushion blower motor. The SCME also sends a speed control voltage signal to the blower motor to control blower speed.
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B19A5 Passenger Seat Cushion Blower Speed Short to Ground | If the passenger seat cushion blower speed circuit is shorted to ground, the SCME shuts down the passenger seat system and sets this DTC. |
Possible Causes
Wiring, terminals or connectors Cushion blower motor SCME
PINPOINT TEST V : DTC B19A5
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.
V1 CHECK CUSHION 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 Cushion Blower Motor C3040. Disconnect: SCME C3265C. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-3 | Ground |
Is the resistance greater than 10,000 ohms?
Yes | GO to V2 |
|---|---|
No | REPAIR the circuit. GO to V5 |
V2 CHECK CUSHION 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-3 | C3265C-7 |
Is the resistance greater than 10,000 ohms?
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.