Is the concern still present?
Yes | CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCME. REFER to: Front Seat Climate Control Module [SCME] (501-10A Front Seats, Removal and Installation). GO to AC36 |
|---|---|
No | The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. GO to AC36 |
AC36 VERIFY THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PROVES OUT SUCCESSFULLY
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Connect: Passenger Side Airbag In-line C219. Connect all previously disconnected connectors.
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 B272E
Refer to Wiring Diagrams Cell 119 for schematic and connector information.
Normal Operation and Fault Conditions
The SCME supplies voltage and ground to the backrest and cushion blower motors. The blower motors are independently controlled by separate speed control circuits from the SCME.
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B272E Driver Ignition Run/Blower Circuit Short to Ground | If either the blower voltage supply or return circuits are open (to both cushion or backrest blowers) or shorted to voltage, the DTC is set and after 4-6 seconds the SCME disables outputs to the driver seat. The DTC also sets if the blower voltage supply or return circuit is open to only one blower when SCME supply voltage is less than 12 volts. |
Possible Causes
Wiring, terminals or connectors Cushion or backrest blower motor SCME
PINPOINT TEST AD : DTC B272E
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.
AD1 CHECK THE BLOWER MOTOR CIRCUITS FOR A SHORT TO VOLTAGE
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 C3265C. Disconnect: Driver Seat Cushion Blower Motor C3035. Disconnect: Driver Seat Backrest Blower Motor C3034. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C3265C-16 | Ground | |
C3265C-15 | Ground |
Is any voltage present?
Yes | REPAIR the circuit in question. GO to AD5 |
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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.