Test Procedure

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

Start diagnosis

-- Engine MUST be at room temperature.

-- Disconnect the EGR Temperature Sensor -G98- -8- connector.

Fig 1: Exploded View Of Exhaust Temperature Control Components

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Using a multimeter, Check the EGR Temperature Sensor -G98- terminals 1 to 2 for resistance.

Specified value: 6.96 K Ω (+/- 400 Ω at room temperature).

If the specified value was Not obtained:

-- Replace the EGR Temperature Sensor -G98-

-- Go to Final procedures

If the specified value was obtained:

-- Remove the Engine Control Module (ECM) -J623-. Refer to the Repair Information.

-- Using a multimeter, Check the EGR Temperature Sensor -G98- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for an open circuit according to the wiring diagram.

EGR Temperature Sensor -G98- electrical harness connector terminals	Engine Control Module (ECM) -J623- electrical connector T60 terminals
1	24
2	60

Specified value: 1.5 Ω Max.

If the specified value was Not obtained:

-- Check the wiring for an open, high resistance or short to ground.

-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

If there was no fault found in the wiring and the voltage was Not obtained:

-- Replace the Engine Control Module (ECM) -J623-. Refer to the Repair Information.