Diagnostic System Check - Automatic Level Control (ALC)

Diagnostic System Check-Automatic Level Control






Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
3. Check for the presence of DTCs.
4. The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
5. Check for the presence of DTCs in Body Control system.
6. Check for the presence of DTCs in Automatic Level Control system.