Rabbit L5-2.5L (BGQ) (2008)
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Using a Multimeter, check the following wiring connections for an open circuit.
Throttle Control Module J338
Motronic Engine Control Module (ECM)
electrical harness connector
J623 electrical connector T121 terminal
terminal
or test box socket
1
92
2
83
3
117
4
84
5
118
6
91
Specified resistance 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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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
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Check resistance values of Throttle Control Module J338 at T121 terminal or test box
Motronic Engine Control
Value:
Module (ECM) J623 electrical
connector T121 terminal or test
box socket
91 to 92
18.4 ohms
84 to 91
Infinity ohms
91 to 83
Infinity ohms
91 to 117
Infinity ohms
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Value not received? Replace J338. If value received,
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Erase the DTC memory. See: 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: 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.
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 Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: 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: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
End of Diagnosis.