GTI L4-2.0L Turbo (BPY) (2007)
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Using a Multimeter, check the Leak Detection Pump (LDP) -V144- electrical connector terminals to the Motronic Engine Control Module (ECM)
J623 electrical connector T94 terminals for an open circuit.
Leak Detection Pump (LDP)
Motronic Engine Control Module(ECM)
V144- electrical harness
J623 electrical connector T94
connector terminals
terminals or test box socket
-1-
40
-2-
8
Specified value: 1.5 ohms max.
If the specification is not obtained:
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Check the wiring for a short circuit to Battery positive (+) or an open circuit.
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in wiring:
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Replace the Motronic Engine Control Module (ECM) J623.
Assembly is performed in the reverse order of the removal, note the following:
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Install the right rear wheel housing liner.
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 Mode 03:
Interrogating Fault 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.