A3 L4-2.0L Turbo (BPY) (2006)
Engine Speed (RPM) Sensor
Motronic Engine Control Module
G28 electrical harness
(ECM) J220 electrical connector
connector terminals
T60 terminals or test box socket
1
52
2
51
3
36
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).
-
Check the electrical harness connector for damage, corrosion, lose or broken terminals.
-
If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
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Remove the Engine Speed (RPM) Sensor G28 and check the sensor wheel for proper seating, damage and run-out.
If the sensor wheel is OK:
-
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: 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: 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.