A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
Specified value: Wire resistance max 1.5 Ohms
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If necessary, repair wire connection.
If LED lights up:
Checking control wire
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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/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Scan Tool
Connecting/Test Box, Connecting For Wiring and Component Test
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Check the following wire connection for open circuit according to wiring diagram.
Harness connector Terminal
Test box Socket
2
39
Specified value: Wire resistance max 1.5 Ohms
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Check the wire for short circuit to B+ and Ground (GND).
Specified value: Infinite Ohms (no continuity)
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necessary, repair wire connection.
Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1. 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/Mode 3: Check DTC Memory
2. If necessary, erase DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Scan Tool Testing/With Generic Scan Tool/Mode 4: Reset/Erase Diagnostic Data
3. 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.