Diagnostic Test
- CHECK FOR AN ACTIVE DTC NOTE:
This DTC must be active for the results of this test to be valid.
- Turn the ignition on.
- With the scan tool, read DTCs and record on vehicle work order.
- With the scan tool, erase DTCs.
- Cycle the ignition switch from off to on.
- With the scan tool, read TPM DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- CHECK IF PCM DTCS ARE PRESENT
- CHECK OTHER MODULES FOR CAN BUS DTCS
- With the scan tool, read the DTCs.
Are there any CAN BUS DTCs present?
Yes
- Using the schematics as a guide, check the Powertrain Control Module (PCM) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL .
No
- Using the schematics as a guide, check the Tire Pressure Monitoring (TPM) Module pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Tire Pressure Monitoring (TPM) Module in accordance with the Service Information. Refer to MODULE, TIRE PRESSURE MONITORING (TPM), REMOVAL .
- Perform the TPM Verification Test. Refer to STANDARD PROCEDURE .
- With the scan tool, read the DTCs.