Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review GENERAL TROUBLESHOOTING INFORMATION . Information marked with an asterisk (*1) applies to '09-10 models and '11-12 models (M/T). Information marked with an asterisk (*2) applies to '11-12 models (A/T).
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Scheme 298
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Slowly press the accelerator pedal to the floor.
- Check for Pending or Confirmed DTCs with the HDS. Is DTC P2118 indicated? YES: Go to step 5 . NO: Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the ECM/PCM.
- Turn the ignition switch to LOCK (0).
- Jump the SCS line with the HDS.
- Disconnect the throttle body 6P connector.
- Disconnect ECM/PCM connector C (49P).
- Check for continuity between ECM/PCM connector terminal C43 and throttle body 6P connector terminal No. 4. Is there continuity? YES: Go to step 10 . NO: Repair open in the wire between the throttle body and the ECM/PCM (C43), then go to step 14 .
- Check for continuity between throttle body 6P connector terminals No. 5 and No. 6. Is there continuity? YES: Repair short in the wires between throttle body 6P connector terminals No. 5 (ETCS-line) and No. 6 (ETCS+ line), then go to step 14 . NO: Go to step 11 .
- Check for continuity between body ground and throttle body 6P connector terminals No. 5 and No. 6 individually. Is there continuity? YES: Repair short in the wire between the throttle body 6P connector and body ground, then go to step 14 . NO: Go to step 12 .
- At the throttle body side, measure the resistance between throttle body 6P connector terminals No. 5 and No. 6 with the throttle fully closed. Is there about 1.0 ohms or less? YES: Go to step 13 . NO: Go to step 22 .
- Replace the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION ).
- Reconnect all connectors.
- Turn the ignition switch to ON (II).
- Reset the ECM/PCM with the HDS.
- Do ECM/PCM IDLE LEARN PROCEDURE .
- Turn the ignition switch to LOCK (0).
- Turn the ignition switch to ON (II).
- Slowly press the accelerator pedal to the floor.
- Check for Pending or Confirmed DTCs with the HDS. Is DTC P2118 indicated? YES: Check for poor connections or loose terminals at the throttle body and the ECM/PCM, then go to step 1 . NO: Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.
- Reconnect all connectors.
- Update the ECM/PCM if it does not have the latest software (see ECM/PCM UPDATE ), or substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).
- Turn the ignition switch to LOCK (0).
- Turn the ignition switch to ON (II).
- Slowly press the accelerator pedal to the floor.
- Check for Pending or Confirmed DTCs with the HDS. Is DTC P2118 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 (see SUBSTITUTING THE ECM/PCM ), then go to step 24 . 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 (see ECM/PCM REPLACEMENT ). If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.