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Home >> Audi >> 1991 >> 100 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Controls - Self-Diagnostics) >> Self-Diagnostic System >> No Communication Between Ecu & Scan Tester >> Control Module Does Not Answer

Control Module Does Not Answer

WARNING: This page is about a different car, the 1993 Audi 90 and 1993 Audi 100. However, it is still accessible from the selected car via links, so may be relevant.

Press HELP button to generate a list of possible malfunction causes. Check DLC wiring. See CHECKING DLC WIRING. Check for defective ECU by performing diagnostic procedure for Code 65535. After eliminating cause, enter address word "01" to select ENGINE ELECTRONICS.

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