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 TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
- Make sure you have the latest software on the HDS before troubleshooting.
- Turn the ignition switch ON (II) and clear the DTCs with the HDS.
- Turn the ignition switch OFF, and then back ON (II).
- Check for DTCs with the HDS.
Is DTC B1808 indicated?
YES - Go to step 4.
NO - Intermittent failure. The driving position memory system is OK at this time. Check for loose or poor connections and pin fit at the power seat control unit connector, and at the gauge control module connector. Check the battery condition, battery cable connections, and ground G601.
- Check for DTCs with the HDS.
Are DTCs B1008, and/or B1061 also indicated?
YES - Do the gauge control module input test (see GAUGE CONTROL MODULE INPUT TEST ).
NO - Do the power seat control unit input test (see POWER SEAT CONTROL UNIT INPUT TEST ).