Jetta Sedan V6-2.8L (BDF) (2003)
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Air Injection Control Valve: Testing and Inspection
Combination Valve, Checking
With Manufacturer's Scan Tool
Combi-valve, checking
Special tools and equipment
^
VAG 1390 Hand vacuum pump
Test conditions
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Vacuum lines and hose connections free of leaks.
^
Pressure hose for secondary air injection pump motor not blocked or kinked.
^
Vacuum lines not blocked or kinked.
^
No DTC stored in DTC memory
^
Perform output Diagnostic Test Mode (DTM)
Refer to Powertrain Management
Test sequence
Note: Do not use compressed air during the following check!
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Remove engine cover.
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Remove intake hose between Mass Air Flow (MAP) sensor and throttle valve control module
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Pull vacuum hose off secondary air injection (AIR) solenoid valve -N112- and combi-valve -arrow-.
