GLI L4-2.0L Turbo (BPY) (2008)
If the manufacturers test box is being used. Perform the following step.
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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.
Checking voltage supply
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Using a Multimeter, check the following wiring connection for voltage.
Specified value: 12.5 V
If the specified value was not obtained:
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Check the Motronic Engine Control Module (ECM) J220 electrical harness connector T94 terminal 92 to the Generator (GEN) C for an open
circuit or short to Ground (GND).
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Check the electrical harness connectors for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
Checking Ground (GND)
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Using a Multimeter, check the following wiring connections for an open circuit.
Motronic Engine Control
Measure to
Module (ECM) J220 electrical
harness connector T94
terminals test box sockets
1
Ground (GND) connection in left plenum chamber
2
Ground (GND) connection in left plenum chamber
4
Ground (GND) connection in left plenum chamber
Specified value: 1.5 Ohms.
If any of the specified values are not obtained:
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Check the Motronic Engine Control Module (ECM) J220 electrical harness connector terminals to the following Ground (GND) locations for an
open circuit or a short to Battery (+).
Motronic Engine Control
Measure to
Module (ECM) J220 electrical
harness connector T94
terminals test box sockets
1
Ground (GND) connection in left plenum chamber
2
Ground (GND) connection in left plenum chamber
4
Ground (GND) connection in left plenum chamber
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring and the voltage supply was OK:
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Perform a road test to verify any electrical repairs.
If the fault does not return:
Repair complete, Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
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End diagnosis.
If the fault 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) J220.
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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: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and