Circuit/System Testing
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Tire pressure sensors should transmit valid data with good signal strength in response to low frequency activation from the TPM special tool. It is important to observe the signal strength graph on the TPM special tool display screen after the activate button has been pressed and released. Any more than 1/4 graph displayed can be considered good signal strength.
- Using the special tool, activate each tire pressure sensor and record each sensors transmission data and physical location. Verify tool displays 8-digit ID number, accurate tire pressure +/- 2 psi, Learn Mode, and good signal strength.
- 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 SENSOR LEARN PROCEDURE .
- 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 tire pressures (+/- 2 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.
- Test drive the vehicle above 40 km/h (25 mph) for greater than 10 seconds. 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.
- If no faults are found, go to DIAGNOSTIC AIDS .