Touareg 2 V6-3.6L (BHK) (2008)
circuit or a short circuit.
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Check the wiring connections 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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Switch the ignition on.
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Using a Multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay (J271) socket 87 to Ground (GND).
Specified value: battery voltage.
If the specified value was obtained:
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). Refer to --> [ Motronic Engine Control Module, Replacing ] See: Relays and Modules -
Computers and Control Systems/Engine Control Module/Service and Repair/Motronic Engine Control Module, Replacing.
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Using a Multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay (J271) socket 85 to the Motronic Engine Control
Module (ECM) (J623) electrical harness connector T94 terminal 69 for resistance.
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Ensure key is off
Specified value: 2.0 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:
Checking activation
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Re-install Motronic Engine Control Module (ECM) Power Supply Relay (J271)
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Switch the ignition on.
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Using a Multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay (J271) socket 85 to the Motronic Engine Control
Module (ECM) (J623) electrical harness connector T94 terminal 69 for voltage.
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Switch the ignition off.
Specified value: 0.5 V Max.