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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 898 (Tire Pressure Monitoring System) >> Diagnostic Information and Procedures >> DTC C0750, C0755, C0760, or C0765 >> 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. Using the J-46079  , activate each tire pressure sensor and record each sensors transmission data and physical location. Verify J-46079  displays the 8-digit ID number, accurate tire pressure +/- 13.8 kPa (2 psi), Learn Mode, and at least a 1/4 graph signal strength displayed.
    • If any of the parameters listed above are not displayed, replace the suspect tire pressure sensor.
  2. With the scan tool, verify tire pressure sensors ID and locations displayed on the scan tool match the IDs and locations recorded from the special tool.
  3. Enable the TPM learn mode. Use the TPM special tool in simulate mode to learn 4 simulated sensor transmissions into the RCDLR. Verify all 4 sensor locations, IDs, and that the tire pressures are within+/- 6.9 kPa (1 psi) as they are displayed on the TPM special tool match what the scan tool displays.
    • If the scan tool does not match, replace the RCDLR.
  4. Test drive the vehicle above 32 km/h (20 mph) for greater than 2 minutes. With the scan tool, observe the suspect Pressure Sensor Mode data parameter. Verify sensor mode changes from Wake to Drive.
    • If the suspect Pressure Sensor Mode does not change, replace the suspect tire pressure sensor.
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