S6 V8-4.2L (BBD) (2004)
Checking wire connections
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Connect test box to wiring harness of Engine Control Module (ECM); ECM is not connected. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test
Box, Connecting For Wiring Test
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Check the following wire connections for open circuit according to wiring diagram:
Harness connector
Test box
Terminal
Socket
3
108
4 (signal)
93
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Specified value: Wire resistance max 1.5 Ohms
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Also check wires for short circuit to each other as well as to B+ and Ground (GND).
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Specified value: infinity Ohms (no continuity)
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If necessary, repair wire connection.
If no malfunctions are found in wires:
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Replace Engine Control Module (ECM).
Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1
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Check DTC memory, "Mode 3: Check DTC memory". See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Diagnostic Mode 3: Check DTC Memory
2
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If necessary, erase DTC memory, "Mode 4: Reset/erase diagnostic data". See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Diagnostic Mode 4:
Reset/Erase Diagnostic Data
3
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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes/Audi Drive Cycle/Readiness Code/With Generic Scan Tool/Readiness Code, Generating
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End diagnosis and switch ignition off.