Rabbit L5-2.5L (BGP) (2006)
If indication jumps to approx. -40.0 degrees C:
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End diagnosis and switch ignition off.
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Replace the Engine Coolant Temperature (ECT) Sensor (on Radiator) G83.
If indication remains at approx. 140.0 degrees C:
Checking wiring
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 Engine Control Module (ECM) J623 .
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Using a Multimeter, check the Engine Coolant Temperature (ECT) Sensor (on Radiator) G83 electrical harness connector terminals to the Engine
Control Module (ECM) J623 electrical harness connector T121 terminals for an open circuit according to the wiring diagram.
Engine Coolant Temperature
Engine Control Module (ECM)
(ECT) Sensor (on Radiator)
J623 electrical connector T121
G83 electrical harness
terminals or test box socket
connector terminals
1
17
2
50
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 detected in the wiring:
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Replace the Engine Control Module (ECM) J623 .
Final procedures
After 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
Procedures/Diagnostic Mode 03: Interrogating Fault Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/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. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
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End of diagnosis.