Loss of DTC Memory
WARNING: This page is about a different car, the 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
In order to test for proper DTC Memory function perform the following:
- Observe the Conditions For Running The DTC for the TP Sensor Circuit Low Voltage DTC.
- Disconnect the Throttle Position (TP) sensor harness connector.
- Operate the vehicle within the Conditions For Running The DTC.
- The MIL should illuminate upon completion of all the Conditions For Running The DTC. Two key cycles or drive trips may be required.
- A TP Sensor Circuit Low Voltage DTC should be stored in the control module and remain in memory when the ignition is turned OFF.
Failure to store a DTC or for the DTC to remain in memory may indicate a faulty control module.