TTS Quattro Roadster L4-2.0L Turbo (CDMA) (2009)
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Using a multimeter, check the Power Supply Relay (terminal 50) (J682) socket 2/30 to Ground (GND).
Specified value: battery voltage.
If the specified value was not obtained:
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Check the wiring connections from the Battery to the Power Supply Relay (terminal 50) (J682) socket 2/30 for an open 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:
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 Motronic Engine Control Module (ECM) ( J623).
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Using a multimeter, check the Power Supply Relay (terminal 50) (J682) socket 6/85 to engine ground (GND) for resistance.
Specified value: 2.0 ohms Max.
If the specification was not obtained:
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Check the wiring for a short circuit to Battery (+), or an open circuit.
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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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Switch the ignition on.
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Using a multimeter, check the Power Supply Relay (terminal 50) (J682) socket 8/87 to the Starter ( B) electrical connector for voltage.
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Switch the ignition off.
Specified value: at least 12.5 volts.
If the specified value was not obtained:
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Replace the Power Supply Relay (terminal 50) ( J682).
If no malfunction is found in the wiring and voltage supply was OK:
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Replace the Motronic Engine Control Module (ECM) (J623).
Final procedures