A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
lead to ground.
Specified value: Battery voltage.
If the specified value was Not obtained:
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Check for an open or grounded circuit between terminal 3 and fuse SB 15.
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Repair the circuit and replace the fuse if blown.
If the specified value was obtained:
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Connect the black multimeter lead to terminal 1 of the Radiator Identification Sensor (G611) harness connector and the red lead to Battery
positive.
Specified value: Battery voltage.
If the specified value was Not obtained:
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Check for an open circuit or high resistance between Radiator Identification Sensor (G611) terminal 1 and the Motronic Engine Control Module
(ECM) (J623) connector terminal 52.
Checking wiring
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Disconnect the Motronic Engine Control Module (ECM) (J623) T94 electrical harness connector.
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Disconnect the Radiator Identification Sensor ( G611) module T3 electrical harness connector.
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Using a multimeter, check the Motronic Engine Control Module (ECM) (J623) T94 electrical harness connector terminal 64 to the Radiator
Identification Sensor (G611) module T3 electrical harness connector terminal 2 for resistance.
Specified value: 1.5 ohms max
If the specified value was not obtained:
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
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Replace the Radiator Identification Sensor (G611 ) (with radiator assembly).
Final procedures
After the repair work, the following work steps must be performed in the following sequence: