DTC Troubleshooting: P2101 (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 21 .
  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. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
    • ENGINE SPEED
    • VSS
    • APP SENSOR A
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P2101 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. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
    • ENGINE SPEED
    • VSS
    • APP SENSOR A
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P2101 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 go to Step 28 . 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.■