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Home >> Audi >> 2001 >> A4 Base, 1.8 C, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L Turbo >> Diagnostic Tests >> DTC P1612/18020: Engine Control Module Incorrectly Coded
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DTC P1612/18020: Engine Control Module Incorrectly Coded

NOTE: VAS 5051 scan tool, VAG 5051/1 adapter cable and VAG 1598/31 test box are necessary to diagnose this code. Follow test equipment manufacturer's instructions for scan tool operation.

DTC P1612/18020 indicates ECM coding problem. If ECM loses power, or is replaced ECM coding must be checked. See FUNCTION 07 - CODING ENGINE CONTROL MODULE  under SELF-DIAGNOSTIC SYSTEM. If problem is found, repair as necessary. After repair, use scan tool to clear DTCs and generate a ECM readiness code. See FUNCTION 05 - CLEARING DIAGNOSTIC TROUBLE CODES  and READINESS CODE  under SELF-DIAGNOSTIC SYSTEM. Test drive vehicle. Using scan tool, retrieve DTCs. If DTC does not reset, testing is complete.

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