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 (A37) and the EPS control unit, then go to Step 14 .
  1. Reconnect all connectors and the battery.
  1. Turn the ignition switch ON (II).
  1. Reset the ECM with the HDS.
  1. Do the ECM 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 (tach), the EPS control unit, and the ECM, 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.■