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Home >> Volkswagen >> 1987 >> Vanagon Base, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> BOSCH AFC System >> Testing >> Throttle Valve Switch >> Switch Wiring

Switch Wiring

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Turn ignition on. Disconnect wiring lead from throttle valve switch. Using voltmeter, check voltage between both terminals of wiring lead. Reading should be approximately 5 volts. If voltage is incorrect, check for break in wiring or defective ECU.