NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections between the gauge control module and the combination
switch control unit.?
5. Check for DTCs with the HDS.
Are DTCs B1007, B1062, B1063, B1957, B1958, and/or B2969 also indicated?
YES -
Do the combination switch control unit input test See: Wiper and Washer Systems/Testing and Inspection/Wiper/Washer Switch (Combination
Switch Control Unit) Input Test.?
NO -
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.?
B1156
DTC Troubleshooting: B1155, B1156
DTC B1155:
Gauge Control Module Lost Communication with Combination Switch Control Unit (HLSW Message)
DTC B1156:
Gauge Control Module Lost Communication with Combination Switch Control Unit (WIPSW 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 B1155 and/or B1156 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections between the gauge control module and the combination
switch control unit.?
5. Check for DTCs with the HDS.
Are DTCs B1007, B1062, B1063, B1957, B1958, and/or B2969 also indicated?
YES -
Do the combination switch control unit input test See: Wiper and Washer Systems/Testing and Inspection/Wiper/Washer Switch (Combination
Switch Control Unit) Input Test.?
NO -
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.?
B1157
DTC Troubleshooting: B1157, B1159, B1180
