DTC Troubleshooting: U0155 (184)
  1. Check for continuity between gauge control module (tach) 36P connector terminal No. 19 and body ground.
Is there continuity?
YES -
Substitute a known-good gauge control module (tach), then go to Step 13 and recheck. If DTC U0155 is not indicated, replace the original gauge control module (tach), then go to Step 13 .
NO -
Repair open in the wire between the gauge control module (tach) and ECM connector No. 2 terminal No. 48, then go to Step 13 .
  1. Reconnect all connectors.
  1. Turn the ignition switch ON (II).
  1. Reset the ECM with the HDS.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0155 indicated?
YES -
Check for poor connections or loose terminals at the gauge control module (tach) 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.■