Is there battery voltage?
YES -
Replace the power tilt/telescopic steering control unit.?
NO -
Do the power tilt/telescopic steering control unit input test See: Relays and Modules/Relays and Modules - Steering and Suspension/Relays and
Modules - Steering/Steering Column Control Module/Testing and Inspection.?
B1844
DTC Troubleshooting: B1844
DTC B1844:
Power Seat Slide 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 slide switch in each direction for more than 3 seconds.
4. Check for DTCs with the HDS.
Is DTC B1844 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. 7, and No. 27 individually.
