A3 L4-2.0L Turbo (BPY) (2006)
![background image](/audi/a3/l4-2.0l_turbo_(bpy)/Page-2382002.png)
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Install the test box.
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 Data Bus On Board Diagnostic Interface J533 electrical harness connector to the Motronic Engine Control Module
(ECM) J220 electrical harness connector T94 for resistance.
Data Bus On Board Diagnostic
Motronic Engine Control Module
Interface J533 electrical
(ECM) J220 electrical connector
harness connector terminals
T94 terminals or test box sockets
6 (Can_Bus Low)
67
16 (Can_Bus High)
68
Specified value: 1.5 Ohms Max.
If the specified value was not obtained:
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Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
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Check the wiring connection for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring:
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Replace the Data Bus On Board Diagnostic Interface J533.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: 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: 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.