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 .

Special tools and workshop equipment 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-. Refer to the service information for removal and installation procedures.

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-. Refer to the Repair information.

-- Using a multimeter, check the Exhaust Flap Control Module -J883- electrical harness connector to the Engine Control Module (ECM) -J623- electrical harness T94 connector for resistance.

Specified value: 1.5 Ω 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-. Refer to the service information for removal and installation procedures.

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 .
2. If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
3. If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .