Exhaust Door Control Unit - J883-, CHECKING: Notes

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Special tools and workshop equipment required

Test procedure

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

-- Remove the engine cover.

-- Disconnect the Exhaust Door Control Unit -J883- -1- electrical harness connector.

Fig 1: Exhaust Door Control Unit -J883-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Switch the ignition on.

-- Using a multimeter, Check the Exhaust Door Control Unit -J883- electrical harness connector terminals 1 to 3 for voltage.

Specified value: about 5.0 V

-- Switch the ignition Off.

Continue test according to the following table:

Value	Cause	Test
If the specified value was not obtained:	Open or shorted circuit	Checking wiring
If the specified value was obtained:	Check reference signal circuit	Checking Activation