DTC B1836: Power Seat Position Sensor Circuit Short
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 DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Operate the power seat adjustment switch in all directions for more than 2 seconds each.
- Check for DTCs with the HDS.
Is DTC B1836 indicated?
YES -Go to step 5.
NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Turn the ignition switch to LOCK (0).
- Disconnect power seat control unit connector A (40P).
- Disconnect the 5P connector from each motor.
- Check for continuity between power seat control unit connector A (40P) terminal No. 15 and body ground.Fig 1: Checking Continuity Between Power Seat Control Unit Connector A (40P) Terminal No. 15 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short to ground in the wire.
NO -Go to step 9.
- Check for continuity between slide motor/position sensor 5P connector terminal No. 2 and body ground (motor body).Fig 2: Checking Continuity Between Slide Motor/Position Sensor 5P Connector Terminal No. 2 And Body Ground (Motor Body)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Replace the slide motor/position sensor (see FRONT SEAT FRAME REPLACEMENT - DRIVER'S SEAT ).
NO -Go to step 10.
- Check for continuity between body ground (motor body) and terminal No. 3 of the front up-down motor/position sensor, rear up-down motor/position sensor, and recline motor/position sensor.Fig 3: Checking Continuity Between Body Ground (Motor Body) And Terminal No. 3 Of Front Up-Down Motor/Position Sensor
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Faulty the motor/position sensor, replace the seat frame assembly (see FRONT SEAT FRAME REPLACEMENT - DRIVER'S SEAT ).
NO -Replace the power seat control unit (see POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT ).