Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0), and then back to ON (II).
- Move both power mirrors to the full up and full left positions with the power mirror switch.
- Move the power seat to the full front up and full rear up positions, then slide the seat all the way back and completely recline the seat-back backward with the power seat adjustment switch.
- Set the seating position into memory by pressing either the Driver 1 or the Driver 2 position memory switch.
- Using the power seat switches, move the seat away from the position just memorized.
- Recall the memory position with the driving position memory switch.
- Wait for 2 minutes.
- Check for DTCs with the HDS. Are any DTCs indicated? YES -Go to next step. NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Check for DTCs with the HDS. Are any DTCs other than B1837 indicated? YES -Go to the indicated DTC's troubleshooting. NO -Go to next step.
- Clear the DTCs with the HDS.
- Wait for 6 seconds.
- Move the motors shown one at a time, and check the operation time. Power mirror actuator (up, down, left, right) Power seat (slide forward/backward, recline forward/backward, front up-down, rear up-down) Does any motor fail to run smoothly? YES -Go to the failed motor test, power mirror actuator test (see «POWER MIRROR SWITCH TEST/REPLACEMENT»(ref-360141-S02033315472010042600000) ), power seat motor test (see «DRIVER'S POWER SEAT MOTOR TEST»(ref-360134-S01095383132010042600000) ). If the motor is OK, check the engagement of the motor gear. NO -Go to the power seat control unit input test (see «POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT»(ref-360134-S23042463652010042600000) ).