A037
CIRCUIT DESCRIPTION
Code A037 will set if the ignition is on and the ACP has lost data communication with the IPC. This code should be seen only as a "History" code (if communications are currently inoperative the ACP will not be able to communicate with the IPC to display the trouble code).
Diagnosis of this code is dependent upon other system symptoms (trouble codes) present with A037.
Code 1037, Loss of ACP Data, may be present with this code. If so, this would indicate that both the IPC and ACP were functional when the code set, but they could not communicate with one another. Refer to the diagnostic chart for Multiple Data Communications Codes for this condition.