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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 898 (Tire Pressure Monitoring System) >> Diagnostic Information and Procedures >> Low Tire Pressure Indicator Inoperative >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the scan tool, select instrument panel special functions Lamp Test. Command the instrument panel lamps ON. Verify tire pressure monitor indicator icon turns ON.
    • If the icon does not turn ON, replace the IPC.
  2. Using the tire pressure monitor (TPM) special tool to observe the tire pressure of the suspected faulty sensor. Check the air pressure with a known accurate tire pressure gage. Compare the pressure reading to the display on the TPM special tool. Verify the pressure readings from special tool do not differ 13.8 kPa (2 psi) or more than actual tire pressure.
    • If not within the specified range, replace the suspect tire pressure sensor.
  3. With the scan tool, observe tire pressures in the scan tool data display. Verify pressure readings from special tool do not differ 13.8 kPa (2 psi) or more than scan tool data display.
    • If not within the specified range, replace the RCDLR.
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