DTC U0131: Gauge Control Module Lost Communication with EPS Control Unit (EPS message)
WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
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 )
- If the HDS does not communicate with the EPS control unit, the EPS indicator stay on, and no EPS DTCs are stored, go to symptom troubleshooting for EPS indicator does not go off, and no DTCs are stored (see SYMPTOM TROUBLESHOOTING )
- Clear the DTCs with the HDS
- Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode
- Wait for at least 6 seconds
- Check for DTCs with the HDS
Is DTC U0131 indicated?
YES -Go to step 5
NO -Intermittent failure, the system is OK at this time Check for loose or poor connections
- Check for EPS DTCs with the HDS
Is any DTCs indicated?
YES -Go to the indicated DTC's troubleshooting, then recheck
NO -Go to step 6
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
- Disconnect the gauge control module 32P connector
- Disconnect the EPS control unit 28P connector
- Check for continuity between the gauge control module 32P connector terminals No 9 and No 10 and the EPS control unit 28P connector terminals No 15 and No 1 respectively.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Substitute a known-good EPS control unit, and recheck If the indication goes away, replace the original EPS control unit If the DTC is still present, replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT )
NO -Repair open in the wire