Rabbit L5-2.5L (BGQ) (2008)
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the Adapter Cable (121 Pin) VAG1598/31.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J623.
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Using a Multimeter, check the Secondary Air Injection (AIR) Pump Relay -J299- socket 2/24 to the Motronic Engine Control Module (ECM)
J623 electrical harness connector T121 terminal 46 for resistance.
Secondary Air Injection
Motronic Engine Control Module (ECM) J623
(AIR) Pump Relay J299
electrical connector T121 terminal or
socket terminal
test box socket
85
46
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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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and voltage supply was OK:
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Replace the Secondary Air Injection (AIR) Pump Relay -J299-.
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Erase the DTC memory. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 04 -
Erase DTC Memory
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Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness
Codes
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End diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:
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Replace the Motronic Engine Control Module (ECM) J623.
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Assembly is performed in the reverse of the removal.
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 -
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 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
End of Diagnosis.