Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Using the EL-46079/J-46079
tool, activate each tire pressure sensor and record each sensors transmission data and physical location. Verify EL-46079/J-46079
tool displays the 8-digit ID number, accurate tire pressure ±27.6 kPa (4 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.
- 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.
- If the IDs and locations do not match, perform the Tire Pressure Indicator Sensor Learn .
- Enable the TPM learn mode. Use the EL-46079/J-46079
tool in simulate mode to learn 4 simulated sensor transmissions into the RCDLR. Verify that all 4 simulated sensor locations, IDs, and tire pressures displayed on the TPM special tool match the corresponding scan tool parameters displayed.
- If the scan tool does not match, replace the RCDLR.
- Test drive the vehicle above 40 km/h (25 mph) for greater than 2 minutes. With the scan tool, observe the suspect Pressure Sensor Mode data parameter. Verify the sensor mode changes to Rolling.
- If the Pressure Sensor Mode does not change, replace the suspect tire pressure sensor.