Tire Sensor 3 Low Pressure Alert
TIRE SENSOR 3 LOW PRESSURE ALERT
For a complete wiring diagram Refer to Diagrams/Electrical. Electrical Diagrams
- When Monitored:
Continuously.
- Set Condition:
The fault is set when there is a low tire pressure condition or sensor pressure measurement error from the sensor/transmitter.
Diagnostic Test
1. TIRE SENSOR LOCATION PROCEDURE
NOTE: If the incorrect Placard Values were programmed into the WCM/SKREEM, a DTC could be set. Before continuing with any TPM diagnostic test, using the scan tool, check that the correct Placard Values have been programmed in to the module.
NOTE: If the TPM indicator is illuminated, check for a low tire pressure condition. If the TPM indicator is flashing, check for DTCs.
NOTE: The following test is to locate the Tire Pressure Sensor/Transmitter. If the tires have been rotated, the Tire Pressure Sensor/Transmitter are no longer in sequence from the factory. Faults are linked to the sensor/transmitter IDs. You MUST locate the correct Tire Pressure Sensor/Transmitter that set the fault before continuing.
Set all tire pressures to the recommended specifications and recheck for fault/alert.
Turn the ignition on.
Starting with the left front wheel, deflate the tire to 20 PSI and wait 2 minutes. The fault will set once the pressure has reached 20 PSI within the 2 minute time frame.
If the TPMS fault was detected and not associated to this Sensor/Transmitter, repeat the process until the faulty Sensor/Transmitter has been identified.
NOTE: Once a fault/alert has set, it will establish the location of the tire pressure sensors/transmitter. Repeat steps until the applicable Tire Pressure Sensor/Transmitter has been located.
Once the correct sensor/transmitter has been located continue.
Continue
- Go to 2
2. LOW TIRE PRESSURE
NOTE: If the incorrect Placard Values were programmed into the WCM/SKREEM, a DTC could be set. Before continuing with any TPM diagnostic test, using the scan tool, check that the correct Placard Values have been programmed in to the module.
NOTE: Check tire, rim and valve stem for leaks.
Correct all tire pressure to the recommended specifications and wait minimum of 3 minutes.
With the scan tool, clear DTCs in the Wireless Control Module (SKREEM).
Test Drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 15 m.p.h.
With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).
Does the DTC reset or is the status Active for this DTC?
Yes
- Go to 3
No
- Go to 4
3. TIRE PRESSURE SENSOR
NOTE: A Pressure of 0 psi signals a broken pressure cell in the sensor (will cause a transmit failure if seen in 8 consecutive transmissions while driving).
Turn the ignition off.
Replace the Tire Pressure Sensor.
With the scan tool, clear DTCs in the Wireless Control Module (SKREEM).
Test Drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 15 m.p.h. (24 km/h).
With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).
Does the DTC reset or is the status Active for this DTC?
Yes
- Replace the Wireless Control Module (SKREEM).
No
- Test Complete.
4. TIRE PRESSURE CORRECTION/INTERMITTENT
NOTE: If the tire pressure was out of specification and by adjusting the pressure corrected the DTC, the test is complete. If the tire pressure was within specification and were unable to reset the DTC an intermittent condition is present and the below steps may aid in identifying the failure.
The conditions necessary to set this DTC are not present at this time.
Refer to any Technical Service Bulletins that may apply to this condition.
With the scan tool, clear DTCs in the Wireless Control Module (SKREEM).
Test Drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 15 m.p.h. (24 km/h).
With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).
Does the DTC reset or is the status Active for this DTC?
Yes
- Repair as necessary.
No
- Test complete.