DTC Troubleshooting: P2176 (40)
  1. Check for continuity between ECM/PCM connector terminals C3 and C4.
Is there continuity?
YES -
Go to Step 27 .
NO -
Repair open in the wires between the throttle body and the ECM/PCM (C3, C4), then go to Step 20 .
  1. Turn the ignition switch to LOCK (0).
  1. Replace the throttle body.
  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. Turn the ignition switch to LOCK (0).
  1. Turn the ignition switch to ON (II), and wait 10 seconds.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P2176 indicated?
YES -
Check for poor connections or loose terminals at the throttle body and the ECM/PCM, then clean the throttle body, and go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■
  1. Reconnect all connectors.
  1. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P2176 indicated?
YES -
Check for poor connections or loose terminals at the throttle body and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM, then recheck. If the ECM/PCM was substituted, go to Step 1 .
NO -
If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■