Inspection Procedures
- Is communication with other systems possible using the scan tool?
Yes: Go to next step.
No: Check the diagnostic trouble line with the scan tool and repair if necessary.
- Check the continuity and voltage of the PCM
Is the PCM normal?
Yes: Go to next step.
No: Go to step 7.
- Check the data link connector
Is the data link connector normal?
Yes: Go to next step.
No: Repair the connector.
- Check the harness
- Turn the ignition switch OFF and disconnect the PCM connector.
- Check the continuity between the data link connector and the PCM.
Is the harness normal?
Yes: Go to next step.
No: Repair or replace as necessary.
- Check the trouble symptoms
Is the communication normal?
No: Go to next step.
- Replace the PCM
- Check the PCM connector
- Turn the ignition switch OFF and disconnect the PCM connector.
- Check that the PCM connector for loose, poor connection, bent, corrosion, contamination, deterioration, or damage.
Is the PCM connector normal?
Yes: Go to next step.
No: Repair or replace as necessary.
- Check the PCM harness
- Turn the ignition switch OFF and disconnect the PCM connector.
- Turn the ignition switch ON.
- Check the voltage between the power supply and the PCM.
- Check the voltage between the PCM and ground.
- Specifications : approximately 5V
Is the PCM harness normal?
Yes: Go to next step.
No: Repair or replace as necessary.
- Check the trouble symptoms
Is the communication normal?
Yes: Go to next step.
No: Repair or replace as necessary.
- Replace the PCM
- Disconnect the battery (-) terminal and disconnect the PCM connector.
- Replace the PCM.
Is the output shaft speed sensor normal?