Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
Scheme 54
Scheme 55
Scheme 56
Scheme 57
- Turn the ignition switch ON (II).
- Clear the DTC with the HDS.
- Check TP SENSOR A in the DATA LIST with the HDS. Is there about 0.3 V or less? YES - Go to step 4 . NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the throttle body and the throttle actuator control module.
- Check for Temporary DTCs or DTCs with the HDS. Are DTC P0122 and P0222 indicated at the same time? YES - Go to step 9 . NO - Go to step 5 .
- Turn the ignition switch OFF.
- Disconnect the throttle body 6P connector.
- Disconnect the throttle actuator control module 16P connector.
- Check for continuity between throttle body 6P connector terminal No. 1 and body ground. Is there continuity? YES - Repair short in the wire between the throttle body and the throttle actuator control module (TPSA line), then go to step 17 . NO - Substitute a known-good throttle actuator control module (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-221340-S38247836402006022400000) ), then go to step 17 and recheck. If DTC P0122 is not indicated, replace the original throttle actuator control module (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-221340-S38247836402006022400000) ), then go to step 17 . If DTC P0122 is indicated, go to step 15 .
- Measure voltage between throttle body 6P connector terminal No. 2 and body ground. Is there about 5 V? YES - Go to step 15 . NO - Go to step 10 .
- Turn the ignition switch OFF.
- Disconnect the throttle actuator control module 16P connector (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-221340-S38247836402006022400000) ).
- Disconnect the throttle body 6P connector.
- Connect throttle body 6P connector terminal No. 2 to body ground with a jumper wire.
- Check for continuity between throttle actuator control module 16P connector terminal No. 11 and body ground. Is there continuity? YES - Substitute a known-good throttle actuator control module (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-221340-S38247836402006022400000) ), then go to step 17 and recheck. If DTC P0122 is not indicated, replace the original throttle actuator control module (see «THROTTLE ACTUATOR CONTROL MODULE REPLACEMENT»(ref-221340-S38247836402006022400000) ), then go to step 17 . If DTC P0122 is indicated, go to step 15. NO - Repair open in the wire between the throttle body and the throttle actuator control module (VCC line), then go to step 17 .
- Turn the ignition switch OFF.
- Replace the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-221344-S10447299522006022400000) ).
- Reconnect all connectors.
- Turn the ignition switch ON (II).
- Reset the ECM with the HDS.
- Do the ECM idle learn procedure (see «ECM IDLE LEARN PROCEDURE»(ref-221342-S09897997502006022400000) ).
- Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0122 is indicated, check for poor connections or loose terminals at the throttle body and the throttle actuator control module, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Troubleshooting is complete.