Is there continuity?
YES -
Repair a short in the wire.?
NO -
Go to step 10.
10. Do the power seat adjustment switch test See: Body and Frame/Seats/Power Seat Switch/Service and Repair/Power Seat Adjustment Switch
Test/Replacement.
Is the switch OK?
YES -
Replace the power seat control unit.?
NO -
Replace the power seat adjustment switch.?
B1846
DTC Troubleshooting: B1846
DTC B1846:
Power Seat Front Up-Down Switch Circuit Malfunction
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Operate the front up-down switch in each direction for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC B1846 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
5. Turn the ignition switch to LOCK (0).
