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. | |
B1952 Seat Rear Up/Down Position Feedback Circuit Short to Battery | If a short to voltage or an open condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in one-second increments. | |
B1953 Seat Rear Up/Down Position Feedback Circuit Short to Ground | If a short to ground condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in one-second increments. | |
B1956 Seat Front Up/Down Position Feedback Circuit Short to Battery | If a short to voltage or an open condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in one-second increments. | |
B1957 Seat Front Up/Down Position Feedback Circuit Short to Ground | If a short to ground condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in one-second increments. | |
B1964 Seat Horizontal Forward/Rearward Position Feedback Circuit Short to Battery | If a short to voltage or an open condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in one-second increments. | |
B1965 Seat Horizontal Forward/Rearward Position Feedback Circuit Short to Ground | If a short to ground condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in one-second increments. |
DDM DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
B1C03:23 Memory #1 Switch: Signal Stuck Low | If a short to ground is sensed on the switch input circuit during the DDM self-test, the DTC is set. If activity 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. | |
B1C04:23 Memory #2 Switch: Signal Stuck Low | If a short to ground is sensed on the switch input circuit during the DDM self-test, the DTC is set. If activity 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. | |
B1C05:23 Memory #3 Switch: Signal Stuck Low | If a short to ground is sensed on the switch input circuit during the DDM self-test, the DTC is set. If activity 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. |
Possible Causes
Wiring, terminals or connectors Memory SET switch Missing ignition status information Horizontal motor Seat track DSM
PINPOINT TEST D : THE MEMORY SEAT DOES NOT OPERATE USING THE MEMORY SET SWITCH
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.
D1 CHECK THE DSM (DRIVER FRONT SEAT MODULE) IGNITION SWITCH STATUS PID (PARAMETER IDENTIFICATION) STATES
Ignition ON. Using a diagnostic scan tool, monitor the DSM IGN_SW PID while operating the ignition.
Do the PID states agree?
Yes | GO to D2 |
|---|---|
No | To diagnose no power in run, REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing). |
D2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
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