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 B1182 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 driver's MPCS
unit.?
5. Check for DTCs with the HDS.
Are DTCs B1013, B1015, B1065, B1356, and B1905 indicated with DTC B1182?
YES -
Do the driver's MPCS unit input test See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and
Inspection/Component Tests and General Diagnostics/Drivers MPCS 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.?
B1187
DTC Troubleshooting: B1187
DTC B1187:
Gauge Control Module Lost Communication with SRS Unit (SRS 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 B1187 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 SRS unit.?
5. Check for SRS DTCs with the HDS.
Are there any DTCs indicated?
YES -
Go to and troubleshoot the indicated DTCs, then recheck.
