C1009-49

C1009-49-ECU-INTERNAL FAILURE

- When Monitored:
Ignition on. The Tire Pressure Monitoring (TPM) Module monitors its internal microprocessors for correct operation.

- Set Condition:
If the Tire Pressure Module detects an internal fault, the DTC is set.





NOTE: Check for and remove any non-FCC compliant components, and verify that the tire pressures are correct, before beginning this diagnostic procedure.
INTERNAL FAILURE DTC PRESENT
1. Turn the ignition on.
2. With the scan tool, read DTCs.
3. With the scan tool, erase stored DTCs.
4. Turn the ignition off.
5. Turn the ignition on.
6. With the scan tool, read DTCs.

Does the scan tool display C1009-49-ECU-INTERNAL FAILURE?

Yes

- Replace the Tire Pressure Monitoring (TPM) Module. Tire Pressure Monitoring (TPM) Module - Removal.
- Perform the TPM VERIFICATION TEST. TPM Verification.

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the TPM VERIFICATION TEST. TPM Verification.