DTC Troubleshooting: B1836
DTC B1836:
 Power Seat Position Sensor Circuit Short
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0) and then back to ON (II).
  1. Operate the power seat adjustment switch in all directions for more than 1 second each.
  1. 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.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect power seat control unit connector A (40P).
  1. Disconnect the 5P connector from each motor.
  1. Check for continuity between body ground and power seat control unit connector A (40P) No. 15 terminal.
Is there continuity?
YES -
Repair a short to ground in the wire.■
NO -
Go to Step 9 .
  1. Check for continuity between body ground (motor body) and the No. 2 terminal of the slide motor/position sensor.
Is there continuity?
YES -
Repair the slide motor/position sensor.■
NO -
Go to Step 10 .
  1. Check for continuity between body ground (motor body) and the No. 3 terminal of the front up-down motor/position sensor, rear up-down motor/position sensor, and recline motor/position sensor.
Is there continuity?
YES -
If the front or rear up-down motor/position sensor is faulty, replace the seat frame assembly. If the recline motor/position sensor is faulty, replace the recline motor/position sensor.■
NO -
Replace the power seat control unit .■