Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ).
Scheme 85
Scheme 86
Scheme 87
- Turn the ignition switch ON (II).
- Check the OIL PRESSURE SENSOR in the DATA LIST with the HDS. Is there about 0.18 V or less? YES - Go to step 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the oil pressure sensor and the PCM.
- Turn the ignition switch OFF.
- Disconnect the EOP sensor 3P connector.
- Turn the ignition switch ON (II).
- Check the OIL PRESSURE SENSOR in the DATA LIST with the HDS. Is there about 0.18 V or less? YES - Go to step 8 . NO - Go to step 7.
- Measure voltage between EOP sensor 3P connector terminals No. 1 and No. 3. Is there about 5 V? YES - Go to step 16 . NO - Go to step 12 .
- Turn the ignition switch OFF.
- Jump the SCS line with the HDS.
- Disconnect PCM connector C (44P).
- Check for continuity between EOP sensor 3P connector terminal No. 2 and body ground. Is there continuity? YES - Repair short in the wire between the PCM (C22) and the EOP sensor, then go to step 18 . NO - Go to step 25 .
- Turn the ignition switch OFF.
- Jump the SCS line with the HDS.
- Disconnect PCM connector C (44P).
- Check for continuity between the PCM connector terminal C13 and EOP sensor 3P connector terminal No. 1. Is there continuity? YES - Go to step 25 . NO - Repair open in the wire between the PCM (C13) and the EOP sensor, then go to step 18 .
- Turn the ignition switch OFF.
- Replace the EOP sensor (see «EOP SENSOR REMOVAL/INSTALLATION»(ref-243331-S18823069572006082300000) ).
- Reconnect all connectors.
- Turn the ignition switch ON (II).
- Reset the PCM with the HDS.
- Do the PCM Idle Learn Procedure (see «PCM IDLE LEARN PROCEDURE»(ref-243313-S13405059332006082300000) ).
- Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0522 is indicated, check for poor connections or loose terminals at the EOP sensor and the PCM, then go to step 1 . NO - Go to step 23.
- Monitor the OBD STATUS for DTC P0522 in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated «DTC'S TROUBLESHOOTING»(ref-243331-S34035497822006082300000) . NO - If the screen indicates FAILED, check for poor connections or loose terminals at the EOP sensor and the PCM, then go to step 1 . If the screen indicates NOT COMPLETED, keep idling until a result comes on.
- Reconnect all connectors.
- Update the PCM if it does not have the latest software (see «PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-243311-S19790429062006082300000) ), or substitute a known-good PCM (see «HOW TO SUBSTITUTE THE PCM»(ref-243311-S24543735662006082300000) ).
- Start the engine, and let it idle.
- Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P0522 is indicated, check for poor connections or loose terminals at the EOP sensor and the PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated «DTC'S TROUBLESHOOTING»(ref-243331-S34035497822006082300000) . NO - Go to step 28.
- Monitor the OBD STATUS for DTC P0522 in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated «DTC'S TROUBLESHOOTING»(ref-243331-S34035497822006082300000) . NO - If the screen indicates FAILED, check for poor connections or loose terminals at the EOP sensor and the PCM. If the PCM was updated, substitute a known-good PCM (see «HOW TO SUBSTITUTE THE PCM»(ref-243311-S24543735662006082300000) ), then go to step 26 . If the PCM was substituted, go to step 1 . If the screen indicates NOT COMPLETED, keep idling until a result comes on.