Replace the power seat adjustment switch.?
B1847
DTC Troubleshooting: B1847
DTC B1847:
Power Seat Rear 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 rear up-down switch in each direction for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC B1847 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).
6. Disconnect power seat control unit connector A (40P).
7. Disconnect the power seat adjustment switch 12P connector.
8. Check for continuity between body ground and power seat control unit connector A (40P) terminals No. 1, No. 3, and No. 23 individually.
Is there continuity?
YES -
Repair a short to ground in the wire.?
NO -
Go to step 9.
9. Check for continuity between these power seat control unit connector A (40P) terminals:
