Is DTC B1802 indicated?
YES -
Replace the power seat control unit.?
NO -
Intermittent failure, the system is OK at this time.?
B1805
DTC Troubleshooting: B1805, B1808
DTC B1805:
Power Seat Control Unit Lost Communication with Gauge Control Module (VSP/NE Message)
DTC B1808:
Power Seat Control Unit Lost Communication with Gauge Control Module (A/T Message)
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. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC B1805 and/or B1808 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power seat control unit and the gauge control
module.?
5. Check for DTCs with the HDS.
Are DTCs B1011, B1060, B1061, B1205, B1357, B1359, B1806, B1906, B1956, B2160, and U0155 also indicated?
YES -
Do the gauge control module input test See: Instrument Panel, Gauges and Warning Indicators/Testing and Inspection/Component Tests and
General Diagnostics/Gauge Control Module Input Test.?
NO -
Replace the power seat control unit.?
B1806
DTC Troubleshooting: B1806, B1810, B1811
DTC B1806:
Power Seat Control Unit Lost Communication with MICU (MICU Message)
DTC B1810:
Power Seat Control Unit Lost Communication with MICU (MIRRORSW Message)
