Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ). Information marked with an asterisk (*1) applies to '09-11 models. Information marked with an asterisk (*2) applies to '12 model.
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- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Slowly press the accelerator pedal to the floor.
- Check for Temporary DTCs or 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 PCM.
- Turn the ignition switch to LOCK (0).
- Jump the SCS line with the HDS.
- Disconnect the throttle body 6P connector.
- Disconnect PCM connector B (49P).
- Check for continuity between PCM connector terminal B33 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 PCM (B33), then Go to step 18 .
- 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 terminal No. 5 (ETCS-line) and No. 6 (ETCS+ line), then Go to step 18 . 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 18 . 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 1.0-1.0 kohms? YES -Go to step 13. NO -Go to step 17 .
- Disconnect PCM connector C (49P).
- Connect throttle body 6P connector terminals No. 5 and No. 6 with a jumper wire.
- Check for continuity between PCM connector terminals C2 and C3. Is there continuity? YES -Go to step 16. NO -Repair open in the wire between the throttle body and the PCM (C2, C3), then Go to step 18 .
- At the throttle body side, check for continuity between body ground and throttle body 6P connector terminals No. 5 and No. 6 individually. Is there continuity? YES -Go to step 17. NO -Go to step 26 .
- Replace the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-336463-S20687507372009072700000) ).
- Reconnect all connectors.
- Turn the ignition switch to ON (II).
- Reset the PCM with the HDS.
- Do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-336473-S09468920992009072700000) ).
- Turn the ignition switch to LOCK (0).
- Turn the ignition switch to 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 PCM, 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.
- Reconnect all connectors.
- Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-336453-S09500398002009072700000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-336452-S17145915352009072700000) ).
- Turn the ignition switch to LOCK (0).
- Turn the ignition switch to 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 PCM. If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-336452-S17145915352009072700000) ), then Go to step 27 . If the PCM was substituted, Go to step 1 NO -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-336453-S28620960052009072700000) ). If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.