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 B2730
Refer to Wiring Diagrams Cell 119 for schematic and connector information.
Normal Operation and Fault Conditions
The SCME monitors seat backrest temperature while it supplies voltage and ground to both blower motors. The SCME also supplies a variable voltage signal to control the blower speed. Cabin air enters the blower through a filter attached to the blower motor housing. Heated or cooled air exits the blower motor and flows through the foam pad.
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B2730 Back Over-Temp Detected | If the driver seat backrest blower motor temperature exceeds 70° C (158° F) in cool mode or 85° C (185° F) in heat mode for more than 4 seconds the SCME shuts down the driver seat system and sets this DTC. |
Possible Causes
Wiring, terminals or connectors Restricted blower motor filter Crushed or restricted backrest foam pad Backrest blower motor SCME
PINPOINT TEST AG : DTC B2730
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.
AG1 CHECK THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) FOR ON-DEMAND DIAGNOSTIC TROUBLE CODES (DTCS)
Start the vehicle and set the driver seat to HIGH heat. Using a diagnostic scan tool, perform the SCME self-test.
Was DTC B2730 retrieved on-demand during the self-test?
Yes | GO to AG2 |
|---|---|
No | GO to AG5 |
AG2 CHECK THE DRIVER SEAT BACKREST BLOWER MOTOR THERMISTOR CIRCUITS FOR A SHORT TO GROUND
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect: Driver Side Airbag In-line C345. Disconnect: Passenger Side Airbag In-line C219. Disconnect: SCME C3265B. Disconnect: Driver Seat Backrest Blower Motor C3034. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265B-9 | Ground | |
C3265B-10 | Ground |
Are the resistances greater than 10,000 ohms?
Yes | GO to AG3 |
|---|---|
No | REPAIR the circuit in question. GO to AG22 |
AG3 CHECK THE DRIVER SEAT BACKREST BLOWER MOTOR THERMISTOR AND WIRING
Connect: Driver Seat Backrest Blower Motor C3034. Measure:
Click to display connectors
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.