A6 Sedan V6-2.8L (AHA) (1998)
1598/22 Test Box" See: Computers and Control Systems/Testing and Inspection
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Check wiring between ECM/test box and 5- pin connector for continuity and/or short circuit per wiring diagram.
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Connector terminal 3 to ECM/test box socket 71
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Connector terminal 4 to ECM/test box socket 78
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Connector terminal 5 to ECM/test box socket 70
If wiring is OK:
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Replace Motronic ECM -J220-.
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Carry out adaptation of throttle valve control module to ECM.
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Check readiness code.Refer to "Moniters, Trips and/or Drive Cycle (Readiness Codes)/Checking Readiness Code" See: Computers and Control
Systems/Testing and Inspection
If Diagnostic Trouble Code (DTC) memory has been erased, or ECM has been disconnected, generate new readiness code.Refer to "Moniters, Trips
and/or Drive Cycle (Readiness Codes)/Generating Readiness Code" See: Computers and Control Systems/Testing and Inspection
Checking ground for power output stage
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Disconnect 5-pin connector from ignition coils.
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Connect VAG 1527 LED voltage tester between B+ and terminal 2 (ground) of connector.