DTC B1836: Power Seat Position Sensor Circuit Short

WARNING: This page is about a different car, the 2012 Honda Accord, 2011 Honda Accord, 2010 Honda Accord, 2009 Honda Accord, and 2008 Honda Accord. However, it is still accessible from the selected car via links, so may be relevant.

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 at least 1 second each.
Check for DTCs with the HDS.
Is DTC 67836 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 B (40P).
Disconnect the 6P connectors from the slide motor/position sensor, the front up-down motor/position sensor, and the rear up-down motor/position sensor, and disconnect the 5P connector from the recline motor/position sensor.
Check for continuity between power seat control unit connector B (40P) terminal No. 15 and body ground.

Fig 1: Checking Continuity Between Power Seat Control Unit Connector B (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 recline motor/position sensor terminal No. 3 and the motor body.

Fig 2: Checking Continuity Between Power Seat Control Unit Connector B (40P) Terminal No. 15 And Motor Body
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Replace the recline motor/position sensor, see FRONT SEAT RECLINE MOTOR REPLACEMENT

NO -Go to step 10.
Check for continuity between front up-down motor/position sensor, rear up-down motor/position sensor terminal No. 4 and motor body.

Fig 3: Checking Continuity Between Power Seat Control Unit Connector B (40P) Terminal No. 15 And Seat Frame

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -If the front or rear up-down motor/position sensor is faulty, replace the seat frame assembly, see FRONT SEAT FRAME REPLACEMENT - DRIVER'S SEAT . If the recline motor/position sensor is faulty, replace the slide motor/position sensor, see FRONT SEAT SLIDE MOTOR REPLACEMENT .

NO -Replace the power seat control unit (see POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT ). ■