Q5 Quattro V6-3.2L (CALB) (2009)
Specified value: battery voltage.
Switch the ignition off.
If the specified value was not obtained:
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Check the wiring from the Secondary Air Injection (AIR) Solenoid Valve 2 (N320) electrical connector terminal 1 to the Secondary Air Injection
(AIR) Pump Relay (J299) terminal 4 for an open circuit.
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
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). Using a multimeter, check the Secondary Air Injection (AIR) Solenoid Valve 2 (
N320) electrical harness connector terminal 2 to the Motronic Engine Control Module (ECM) (J623) electrical harness connector T60 terminal 9
for an open circuit.