Test Description
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, and 2003 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers in the diagnostic procedures.
- 5
This step will determine if the MAP sensor pressure is within the proper range for a given altitude. - 6
This step will determine if the MAP sensor pressure is within the proper range at idle. - 7
This step will determine if the MAP sensor responds properly to the change in manifold pressure. - 8
This step will determine if the TP sensor is operating properly. - 9
This step will determine if any mechanical faults have caused this DTC to set. - 10
This voltage drop test will determine if high resistance has caused this DTC to set.