Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
Scheme 32
Scheme 33
- Disconnect the throttle actuator control module 16P connector (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-291428-S22514883782008072800000) ).
- Measure resistance between throttle actuator control module 16P connector terminals No. 1 and No. 8. Is there about 1.0 ohms or less? YES - Go to step 3 . NO - Substitute a known-good throttle actuator control module (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-291428-S22514883782008072800000) ), then go to step 6 and recheck. If DTC P2118 is not indicated, replace the original throttle actuator control module (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-291428-S22514883782008072800000) ), then go to step 6 .
- Disconnect the throttle body 6P connector.
- At throttle body side, measure 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 5 . NO - Repair short in the wires between the throttle body and the throttle actuator control module (motor drive lines), then go to step 6 .
- Replace the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-291400-S02025488092008072800000) ).
- Reconnect all connectors.
- Turn the ignition switch ON (II).
- Reset the ECM/PCM with the HDS.
- Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-291413-S23447131872008072800000) ).
- Turn the ignition switch OFF.
- Turn the ignition switch ON (II).
- Slowly press the accelerator pedal to the floor.
- Check for Temporary DTCs or DTCs with the HDS. Is DTC P2118 indicated? YES - Check for poor connections or loose terminals at the throttle body and the throttle actuator control module, then go to step 1 . NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.