Diagnostic Routine Q

Diagnostic Routine Q

Diagnostic Overview

The Tire Pressure Monitoring System (TPMS) Warning Indicator Is Never or Always On

Normal Operation and Fault Conditions

REFER to Tire Pressure Monitoring System (TPMS) Warning Indicator .

If the tire pressure status message is missing for 5 seconds or less, the TPMS (Tire Pressure Monitoring System) warning indicator remains in its last indication state (on or off) based on the last known good message received.

If the tire pressure status message is missing for more than 5 seconds, the IPC (Instrument Panel Cluster) sets DTC (Diagnostic Trouble Code) U0140:00 and flashes the TPMS (Tire Pressure Monitoring System) warning indicator for approximately 75 seconds then illuminates the TPMS (Tire Pressure Monitoring System) warning indicator.

Pinpoint Test

1. CHECK THE TIRE PRESSURE

1. Verify the tire pressure in all tires meets the recommended tire pressures on the VC (Vehicle Certification) label. See the VC (Vehicle Certification) on driver door jamb.

Do all the tires meet the recommended tire pressures?







2. RETRIEVE THE RECORDED DTCs (Diagnostic Trouble Codes) FROM IPC (Instrument Panel Cluster) SELF-TEST

1. Using a scan tool, perform the IPC (Instrument Panel Cluster) self-test.

Are any DTCs (Diagnostic Trouble Codes) recorded?







3. RETRIEVE THE RECORDED DTCs (Diagnostic Trouble Codes) FROM THE BCM (Body Control Module) SELF-TEST

1. Using a scan tool, perform the BCM (Body Control Module) self-test.

Are any DTCs (Diagnostic Trouble Codes) recorded?







4. CHECK THE TPMS (Tire Pressure Monitoring System) WARNING INDICATOR USING THE DEALER TEST MODE

1. Ignition OFF.

2. Enter the Dealer Test Mode. REFER to Dealer Test Mode .

3. Scroll to LED test.

4. Monitor the TPMS (Tire Pressure Monitoring System) warning indicator.

Does the TPMS (Tire Pressure Monitoring System) warning indicator illuminate?