GM Automatic - Auto Repair Codes

Scan Tool for Codes and Live Data for your GM Transmission from $199 USD

The information below may apply to GM Cadillac Eldorado, Cadillac Seville and many other models

Step 4

GM Transmission Code Reading

Connector Diagram

Auto Repair Manual - How to read codes (No Special Tools Needed)

1 To retrieve codes, turn the ignition ON but do not start the engine.

2 Press the OFF and WARM (or TEMP) buttons on the climate control panel at the same time, HOLD down until all segments / bulbs illuminate.

3 The stored codes will then be displayed in the Instrument Panel Cluster display area.

4 Read codes as described in the Code Format Description below.

5 Press the continue button to enter the code numbers and get the code description(s).

To move to the next screen click on the Continue button

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Note on Example Model(s): GM Cadillac Eldorado, Cadillac Seville
The example model(s) shown, GM Cadillac Eldorado, Cadillac Seville for this auto repair service are only an indication to help you. There may be many other models that apply to this connector. Click above link to see the complete vehicle coverage list.