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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 P1626/18034: Powertrain Can-Bus Missing Message From Transmission Control Module

DTC P1626/18034: Powertrain Can-Bus Missing Message From Transmission Control Module

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

DTC P1606/18014 suggests communication concern between ECM and other control modules which communicate over CAN-bus circuits. For diagnostic procedure for checking data transfer concerns, see DATA TRANSFER BETWEEN ENGINE CONTROL MODULE AND CAN-BUS CAPABLE CONTROL MODULES  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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