Diagnostic Test

1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10.0 seconds.
5. Turn the ignition on.
6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.

Did the DTC return?

Yes 

• Go To  2

No 

• Perform the appropriate INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .

1. Turn the ignition off.
2. Turn the ignition from off to on.
3. Check for the following conditions:
   • The warning lamp is off.
   • The tire pressure values in the Instrument Cluster are displayed as dashes.
   • The message center is not  displaying "SERVICE TPM SYSTEM".

   Are all of the above conditions correct?

   Yes 

   • The RFHM is now in deactivation mode (Winter Mode). This DTC will remain active until the correct tire and wheel assemblies are installed back on the vehicle. Once one of the correct tire and wheel assemblies are reinstalled, the other three must also be reinstalled prior to turning the ignition on.

   No 

   • Go To  3

1. Turn the ignition off.
2. Verify the correct TPM Sensors are installed in all of the tire and wheel assemblies.
   NOTE:

   Always be certain to select the proper vehicle line and model year when using this tool, as the tool will automatically use the correct protocol to attempt to read the Sensor. If the incorrect vehicle line and/or model year is selected, the Sensor will not respond to the tool.

   NOTE:

   If you receive no response from any of the tire pressure sensors, check to make sure that the TPM-RKE Analyzer is set correctly, and repeat the process on each of the non-responsive wheel(s)

3. Use a TPM-RKE Analyzer (special tool #2046300080, Kit, TPM/RKE ANALYZER) to scan each TPM Sensor for an ID, store in the proper location in the TPM-RKE Analyzer.

   Are the correct TPM Sensors installed?

   Yes 

   • Replace the Radio Frequency Hub Module (RFHM) in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL AND INSTALLATION .
   • Perform the RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .

   No 

   • Install all new Tire Pressure Monitoring (TPM) Sensors in accordance with the Service Information. Refer to SENSOR, TIRE PRESSURE MONITORING (TPM), REMOVAL AND INSTALLATION .
   • Perform the TPM SENSOR VERIFICATION TEST. Refer to TPM VERIFICATION TEST .