DTC B1834: M/T Harness Poor Ground

WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. 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 DTC with the HDS.
Turn the ignition switch OFF, and then back ON (II).
Operate the power seat with the power seat adjustment switch.
Check for DTCs with the HDS.
Is DTC 1834 indicated?

YES -Go to step 5.

NO -Intermittent failure, the system is OK at this time.
Measure the voltage between the power seat control unit connector A (20P) No. 8 terminal and body ground.

Fig 1: Measuring Voltage Between Power Seat Control Unit Connector A (20P) No. 8 Terminal And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 1 V or less?

YES -Check for poor connection between the power seat control unit connector A (20P) and G501. If the wire and ground are OK, replace the power seat control unit (see POWER SEAT CONTROL UNIT INPUT TEST ).

NO -Check for the poor ground (G501) or repair an open in the wire.