A3 L4-2.0L Turbo (BPY) (2006)
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J220.
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Using a Multimeter , check the Intake Air Temperature (IAT) Sensor G42 electrical harness connector terminals to the Motronic Engine Control
Module (ECM) J220 electrical harness connector T60 terminals for an open circuit according to the wiring diagram.
Intake Air Temperature (IAT)
Motronic Engine Control Module
Sensor G42 electrical harness
(ECM) J220 electrical connector
connector terminals
T60 terminals or test box socket
1
13
2
14
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
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Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
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If necessary, repair the faulty wiring connection.
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
If no malfunction is detected in the wiring:
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Replace the Motronic Engine Control Module (ECM) J220.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Mode 04: Reset/Delete Diagnostic Data
3. If the DTC memory was erased, generate readiness code.
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End of diagnosis.