N5 VERIFY THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PROVES OUT SUCCESSFULLY
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 B1113 and B111B
Refer to Wiring Diagrams Cell 119 for schematic and connector information.
Normal Operation and Fault Conditions
The SCME monitors the backrest and cushion blower motor circuits. If a short to ground or voltage on any of these circuits is detected, the Diagnostic Trouble Codes (DTCs) will be set.
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B1113 | Passenger Thermal Electric Device Control Overtemperature Fault | If the SCME blower motor driver integrated circuit temperature exceeds 175° C (347° F), the SCME shuts down the driver seat system and sets this DTC. |
B111B Passenger Thermo-Electric Driver Overcurrent Low | If SCME outputs to the driver seat backrest or cushion blower motor (circuit pins A, B, C or D at the SCME connector) or any components within these circuit loops are shorted to ground or a blower motor resistance of less than 0.9 ohm is sensed, the SCME shuts down the driver seat system and sets this DTC. |
Possible Causes
Wiring, terminals or connectors Backrest blower motor Cushion blower motor SCME
PINPOINT TEST O : DTC B1113 AND B111B
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.
O1 CHECK BLOWER MOTOR CIRCUITS 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: SCME C3265A. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265A-A | Ground | |
C3265A-B | Ground | |
C3265A-C | Ground | |
C3265A-D | Ground |
Are the resistances greater than 10,000 ohms?
Yes | GO to O2 |
|---|---|
No | If the resistance of C3265A-A and C3265A-B to ground is not greater than 10,000 ohms to ground, GO to O6 If the resistance of C3265A-C and C3265A-D to ground is not greater than 10,000 ohms to ground, GO to O7 |
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.