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ACP Trouble Codes

WARNING: This page is about a different car, the 1995 Cadillac Seville, 1995 Cadillac Eldorado, and 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

After SERVICE MODE is entered, all existing trouble codes will be displayed. Each trouble code consists of system abbreviation, a 3-digit code identifier, and letter "C" or "H".

System abbreviations are "E" for PCM codes, "I" for IPC codes, "A" for ACP codes, and "R" for SIR codes. See ACP TROUBLE CODES table. A "C" or "H" at end of code indicates whether code is current (fault still exists) or code is historical (failure occurred during one of last 50 ignition cycles).

ACP TROUBLE CODES DIRECTORY

Code Circuit Affected Figure
A010 Outside Temperature Sensor Figure & Figure
A011 A/C High-Side Temperature Sensor Figure & Figure
A012 A/C Low-Side Temperature Sensor Figure & Figure
A013 In-Car Temperature Sensor Figure & Figure
A015 Sunload Temperature Sensor Figure & Figure
A037 IPC-To-ACP Serial Data Figure
A040 Air-Mix Valve Figure & Figure
A047 Low Refrigerant Warning Figure & Figure
A048 Very Low Refrigerant Warning Figure & Figure
A050 High A/C High-Side Temperature Figure

If codes do not exist in memory for ACP, a NO A CODES message will be displayed. If IPC cannot communicate with ACP, a NO A DATA message will be displayed.

To repair affected circuit, see the ACP TROUBLE CODE CHARTS. After all trouble codes have been displayed, ACP system may be selected for testing. See SERVICE MODE OPERATION & EXITING DIAGNOSTICS.

NOTE: Trouble code charts are provided only for those circuits and sensors which directly affect A/C operation.