DTC Troubleshooting: U0131 (126)
  1. Check for continuity between EPS control unit connector D (28P) terminal No. 15 and body ground.
Is there continuity?
YES -
Substitute a known-good EPS control unit, then go to Step 14 and recheck. If DTC U0131 is not indicated, replace the original EPS control unit, then go to Step 14 .
NO -
Repair open in the wire between the ECM/PCM (A4) and the EPS control unit, then go to Step 14 .
  1. Reconnect all connectors.
  1. Turn the ignition switch to ON (II).
  1. Reset the ECM/PCM with the HDS.
  1. Do the ECM/PCM idle learn procedure.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0131 indicated?
YES -
Check for poor connections or loose terminals at the gauge control module, the EPS control unit, and the ECM/PCM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■