Yes | INSTALL a new driver seat power lumbar assembly. REFER to: Front Seat Power Lumbar Assembly (501-10A Front Seats, Removal and Installation). GO to B3 |
|---|---|
No | GO to B2 |
B2 CHECK THE SEAT LUMBAR MOTOR CIRCUITS FOR AN OPEN
Disconnect: Driver Seat Control Switch C352. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C352-4 | C3215-B | |
C352-3 | C3215-A |
Are the resistances less than 3 ohms?
Yes | INSTALL a new driver seat control switch. REFER to: Front Seat Control Switch (501-10A Front Seats, Removal and Installation). GO to B3 |
|---|---|
No | REPAIR the circuit in question. GO to B3 |
B3 VERIFY THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PROVES OUT SUCCESSFULLY
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Connect: Driver Side Airbag In-line C345. 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). |
The Memory Seat Does Not Operate Horizontally/Vertically Using the Seat Control Switch
Refer to Wiring Diagrams Cell 123 for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Front Seats - System Operation and Component Description (501-10A Front Seats, Description and Operation).
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B1663 Seat Driver Front Up/Down Motor Stalled | During self-test, the DSM attempts to operate the appropriate seat track motor and uses the motor's position sensor to monitor movement. If no motor movement is sensed, the DTC is set. The DSM will retry motor operation on the next activation of the seat control switch. If no movement continues to be monitored after 250 milliseconds, the DSM disables the output. | |
B1664 Seat Driver Rear Up/Down Motor Stalled | During self-test, the DSM attempts to operate the appropriate seat track motor and uses the motor's position sensor to monitor movement. If no motor movement is sensed, the DTC is set. The DSM will retry motor operation on the next activation of the seat control switch. If no movement continues to be monitored after 250 milliseconds, the DSM disables the output. | |
B1665 Seat Driver Forward/Backward Motor Stalled | During self-test, the DSM attempts to operate the appropriate seat track motor and uses the motor's position sensor to monitor movement. If no motor movement is sensed, the DTC is set. The DSM will retry motor operation on the next activation of the seat control switch. If no movement continues to be monitored after 250 milliseconds, the DSM disables the output. | |
B1711 | Seat Driver Front Up Switch Circuit Short to Battery | If voltage is sensed on the switch input circuit during the DSM self-test, the DTC is set. If voltage is sensed on the input circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored. |
B1715 Seat Driver Front Down Switch Circuit Short to Battery | If voltage is sensed on the switch input circuit during the DSM self-test, the DTC is set. If voltage is sensed on the input circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored. |
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.