Tire Pressure Module (TPM)

9240-ERROR: SHORT CIRCUIT MASS VOLTAGE SUPPLY EXIT ANTENNA





For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.

- When Monitored:
With the ignition on. Battery voltage greater than 10.4 volts.

- Set Condition:
The TPM Module is receiving incorrect voltage values on the LIN BUS from the Tire Pressure Transponders.





1. ACTIVE DTC

NOTE: Repair all other DTCs first before continuing with this test.

1. Ignition on, engine not running.
2. With a scan tool, read DTCs.

Is the DTC active at this time?

Yes

- Go To 2

No

- Go To 6

2. FRONT TRANSPONDER LIN BUS CIRCUIT SHORTED TO VOLTAGE




1. Turn the ignition off.
2. Disconnect the Front and Rear Transponder harness connectors.
3. Disconnect the TPM Module harness connector.
4. Turn the ignition on
5. Measure the voltage of the Front Transponder LIN Bus circuit and ground in the TPM Module harness connector.

Is voltage present?

Yes

- Repair the short to voltage in the Front Transponder LIN Bus circuit.
- Perform the TPM VERIFICATION TEST. TPM Verification Test.

No

- Go To 3

3. REAR TRANSPONDER LIN BUS CIRCUIT SHORTED TO VOLTAGE




1. Measure the voltage of the Rear Transponder LIN Bus circuit and ground in the TPM Module harness connector.

Is voltage present?

Yes

- Repair the short to voltage in the Rear Transponder LIN Bus circuit.
- Perform the TPM VERIFICATION TEST. TPM Verification Test.

No

- Go To 4

4. FRONT TRANSPONDER LIN BUS CIRCUIT OPEN




1. Turn the ignition off.
2. Measure the resistance of the LIN Bus circuit between the Front Transponder harness connector and the TPM Module harness connector.

Is the resistance less than 5.0 Ohms?

Yes

- Go To 5

No

- Repair the open in the Front Transponder LIN Bus circuit.
- Perform the TPM VERIFICATION TEST. TPM Verification Test.

5. REAR TRANSPONDER LIN BUS CIRCUIT OPEN




1. Measure the resistance of the LIN Bus circuit between the Rear Transponder harness connector and the TPM Module harness connector.

Is the resistance less than 5.0 Ohms?

Yes

- Replace and program the TPM Module.
- Perform the TPM VERIFICATION TEST. TPM Verification Test.

No

- Repair the open in the Rear Transponder LIN Bus circuit.
- Perform the TPM VERIFICATION TEST. TPM Verification Test.

6. INTERMITTENT CONDITION

NOTE: Check for any of the follow conditions:
- Poor wire to terminal connection
- Corroded terminals
- Backed out or loose terminals
- Broken wire internal to the insulation
- Dirty (partial) module ground

Were any of the above condition present?

Yes

- Repair as necessary.
- Perform the TPM VERIFICATION TEST. TPM Verification Test.

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time.