For wiring diagrams, refer to
Seat Adjuster Memory Module, Transducers and Motors
.
The seat adjuster memory module controls the seat front height motor power and ground through CKT 286 (DK GRN) and CKT 287 (DK BLU). The seat adjuster memory module also senses the seat front height motor position through the seat front height transducer, utilizing CKT 557B (RED) for reference voltage and utilizing CKT 557A (BLK) as a sensor ground.
The DTC will set if the seat adjuster memory module detects that the front height motor is not responding to the seat adjuster memory module commands due to the following conditions:
• | An open circuit |
• | A short to ground |
• | A shorted to power |
• | An inoperative motor |
• | A history DTC will clear after 100 consecutive fault free ignition cycles. |
• | Use a scan tool in order to clear history and current DTCs. |
One or more of the following conditions may be the cause of an intermittent failure:
• | A poor connection |
• | A break in the wire insulation that exposes the internal wire |
• | A wire broken inside the insulation |
The numbers below refer to the step numbers on the diagnostic table.
This step inspects for current DTCs.
This step locates and repairs open(s) in the wiring between the seat front height motor and the seat adjuster memory module.
This step locates and repairs short(s) to ground in the wiring between the seat front height motor and the seat adjuster memory module.
This step verifies that the seat adjuster memory module is supplying voltage to the seat front height motor.
This step replaces a defective seat front height motor.
This step replaces a defective seat adjuster memory module.
Step | Action | Value(s) | Yes | No | ||||
---|---|---|---|---|---|---|---|---|
1 | Did you perform the Power Seat Systems Diagnostic System Check? | -- | Go to Step 2 | |||||
Does DTC B1775 reset? | -- | Go to Step 3 | ||||||
Refer to Circuit Testing and Wiring Repairs in wiring systems. Did you find and correct the condition? | -- | Go to Step 4 | ||||||
Refer to Circuit Testing and Wiring Repairs in wiring systems. Did you find and correct the condition? | -- | Go to Step 5 | ||||||
Refer to Circuit Testing in wiring systems. Is voltage present when the seat front height adjuster switch is in the UP or DOWN positions? | -- | Go to Step 6 | Go to Step 7 | |||||
Replace the seat front height motor. Refer to Front Seat Adjuster Replacement . Is the repair complete? | -- | -- | ||||||
Replace the seat adjuster memory module. Refer to Memory Seat Control Module Replacement . Is the repair complete? | -- | -- |