Diagnostic Test

TIRE PRESSURE MONITOR SYSTEM CHECK
NOTE:
The TPM Sensor Circuit Voltage Below Threshold fault is not dependent upon other faults being addressed first. Because of this diagnostic strategy, the RF Hub Module should

not

be considered for replacement while diagnosing this TPM Circuit Voltage Below Threshold fault.
1. Confirm the following before proceeding with this diagnostic test.
  - Perform any Technical Service Bulletins that may apply to this system.
  - Verify the tire pressures are correct.
  - Verify the TPM - RKE Analyzer Tool (special tool #2046300080, Kit, TPM/RKE ANALYZER)to the most recent version available before proceeding. Do not assume that the Tool is at the most current version available. Use of a TPM-RKE Analyzer Tool with an out dated version will lead to incorrect diagnosis and part(s) replacement. Contact the TPM-RKE Analyzer Tool help desk for assistance with any repair or up dating concerns to the TPM-RKE Analyzer Tool.
  Were the TPM system checks confirmed?
  
  Yes
  - Go To 2
  No
  - Complete all the TPM system checks listed.
CHECK FOR AN ACTIVE CIRCUIT VOLTAGE BELOW THRESHOLD DTC IN THE RF HUB
1. Turn the ignition on.
2. With the scan Tool, read and record RF Hub DTCs.
  Is this DTC active or if the DTC is stored, are there multiple occurrences?
  
  Yes
  - Go To 3
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
  - Clear DTC
  - Perform the TPM SENSOR VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  - Test Complete.
VISUALLY INSPECT THEN READ ALL TPM SENSORS WITH THE TPM-RKE ANALYZER TOOL
NOTE:
This fault will set if the incorrect TPM Sensor or no TPM Sensor is installed on the vehicle.
1. Perform a visual inspection on each tire to verify that all road wheels are equipped with the correct TPM Sensors.
  NOTE:
  The valve stem caps used are specifically designed for the TPM Sensors. Although similar to standard valve stem caps
  
  they are different
  
  The TPM Sensor valve stem cap has a special seal inside to keep moisture and corrosion out. To visually identify a TPM Sensor/valve stem, the valve stem cap used is longer than what is used on a standard valve stem. There should be no metal valve stems or valve stem caps on the rims.
2. Install the correct Tire Pressure Monitoring (TPM) Sensor(s) as needed from the visual inspection, in accordance with the Service Information, but do not perform the TPM Verification Test at this time. Refer to SENSOR, TIRE PRESSURE MONITORING (TPM), REMOVAL AND INSTALLATION .
3. With the TPM-RKE Analyzer Tool(special tool #2046300080, Kit, TPM/RKE ANALYZER) at the most recent version, select the specific vehicle line and model year.
  NOTE:
  If the incorrect vehicle line or model year are selected the TPM sensor will not respond to the TPM-RKE Analyzer Tool.
4. With the TPM-RKE Analyzer Tool read the TPM Sensors on the vehicle and note the IDs and positions for each with the TPM Sensor/DTC table given. The ID read by the TPM-RKE Analyzer Tool must match the ID written on the side of the TPM Sensor.
  NOTE:
  Depending on the version of the scan Tool, the ID can be located to a particular DTC by the sensor number or wheel position.
  
  NOTE:
  Refer to the DTC, Sensor Number and Wheel Position table.
  
  NOTE:
  The purpose of the TPM-RKE Analyzer Tool is to determine a non responsive or missing sensor, and to identify the location of the sensor by the ID associated to the DTC.
  
  NOTE:
  It is a remote possibility for the TPM-RKE Analyzer Tool to read TPM Sensors from a different vehicle, than the vehicle being tested. If the sensor ID read by the TPM-RKE Analyzer Tool does not match to any of the IDs in the RF Hub, relocate one of the vehicles to continue proper identification, location and testing without interference.
  
  Does the TPM-RKE Analyzer Tool read all TPM Sensor IDs on the vehicle?
  
  Yes
  - Go To 5
  No
  - Go To 4
TPM-RKE ANALYZER TOOL ASSISTANCE
1. With the TPM-RKE Analyzer Tool attempt to read a new TPM Sensor (one not installed) from stock or a known good vehicle of the same year and model.
  NOTE:
  The valve stem caps used are specifically designed for the TPM Sensors. Although similar to standard valve stem caps
  
  they are different
  
  The TPM Sensor valve stem cap has a special seal inside to keep moisture and corrosion out. To visually identify a TPM Sensor/valve stem, the valve stem cap used is longer than what is used on a standard valve stem.
  
  NOTE:
  The ID read by the Tool must agree with the ID written on the side of the sensor housing.
  
  Does the TPM-RKE Analyzer Tool read the new TPM Sensor from stock or the known good vehicle with the same year and model?
  
  Yes
  - Go To 5
  No
  - There is an issue with the TPM-RKE tool.
  - Contact the TPM-RKE Analyzer Tool help desk for assistance with any repair or updating concerns to the TPM-RKE Analyzer Tool.
CHECK TPM SENSOR IDENTIFICATION TO THE CORRESPONDING DTC
1. Replace the TPM Sensor(s) with the ID that corresponds to the DTC, noted previously in accordance with Service Information. Refer to SENSOR, TIRE PRESSURE MONITORING (TPM), REMOVAL AND INSTALLATION .
2. Perform the TPM SENSOR VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  Was the TPM SENSOR VERIFICATION TEST successful and did values for the pressures display correctly?
  
  Yes
  - Clear DTCs
  - Test Complete.
  No
  - Confirm the correct TPM Sensor ID(s) were written into the RF Hub. If not repeat the programming procedure.
  - Perform the TPM SENSOR VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  - Diagnose according to the appropriate DTC service procedure.