Diagnostic Aids
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Faulty wheel speed sensor will not set this DTC.
- A vehicle using a space saver spare will not set this code.
- If the customers comments reflect that the amber ABS/TCS indicator is on only during moist environmental conditions (rain, snow, vehicle wash), inspect all the wheel speed sensor circuitry for signs of water intrusions. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using the following procedure:
- Spray the suspected area with a five percent saltwater solution. Add 2 teaspoons of salt to 12 ounces of water to make five percent saltwater solution.
- Test drive the vehicle over various road surfaces (bumps, turns, etc.) above 40 km/h (25 mph) for at least 30 seconds.
- If the DTC returns, replace the suspected harness.
If an intermittent malfunction exists refer to Testing for Intermittent Conditions and Poor Connections .