Exhaust Flap Control Module, Checking

Diagnostic Procedures

Exhaust Flap Control Module, Checking

Observe all safety precautions: --> [ Safety Precautions ]

View clean working conditions: --> [ Clean Working Conditions ]

Perform a preliminary check to verify the condition: --> [ Preliminary Check ] Preliminary Check.

Special tools, testers and auxiliary items required

• Multimeter

• Wiring diagram.

Start diagnosis

- The Exhaust Flap Control Module (J883) is located near the center of the vehicle in the exhaust pipe.

- Disconnect the Exhaust Flap Control Module (J883) electrical harness connector.

Checking voltage

- Switch the ignition on.

- Using a multimeter, measure voltage supply between connector terminals 1 to 3 for voltage.

Specified value: near 5 V.

- Using a multimeter, measure voltage supply between connector terminals 2 to 3 for voltage.

Specified value: near 5 V.

If any specified value was Not obtained:

- Check the wiring for a short circuit to Battery positive, Ground or high resistance.

- Check the wiring connections for damage, corrosion, loose or broken terminals.

- If necessary, repair the faulty wiring connection.

If the specified values were obtained:

- Using a multimeter, measure voltage supply between connector terminals 4 to 5 for voltage.

Specified value: near 4.35 V.

If the specified value was Not obtained:

- Check the wiring for a short circuit to each other, Battery positive, Ground or high resistance.

- Check the wiring connections for damage, corrosion, loose or broken terminals.

- If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and the voltage readings were correct:

- Replace the Exhaust Flap Control Module (J883).

If no malfunction is detected in the wiring and the voltage readings were Not correct:

Checking wiring

If the manufacturers test box is being used, perform the following step.

- Install the test box.

If the manufacturers test box is not being used, perform the following step.

- Remove the Engine Control Module (ECM) (J623).

- Using a multimeter, check the Exhaust Flap Control Module (J883) electrical harness connector to the Engine Control Module (ECM) (J623) electrical harness T60 connector for resistance.





Specified value: 1.5 ohms Max.

If the specified value was Not obtained:

- Check the wiring for a short circuit to each other, Battery positive, Ground or high resistance.

- If necessary, repair the faulty wiring connection.

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

If no malfunction is detected in the wiring and the voltage readings were Not correct:

- Replace the Engine Control Module (ECM) (J623).

Final procedures

After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to --> [ Diagnostic Mode 03 - Read DTC Memory ] Diagnostic Modes 01 - 09.

2. If necessary, erase the DTC memory. Refer to --> [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Modes 01 - 09.

3. If the DTC memory was erased, generate readiness code. Refer to --> [ Readiness Code ] Monitors, Trips, Drive Cycles and Readiness Codes.