Intake Manifold Flap Motor And Runner Position Sensor, Checking

Observe all safety precautions: SAFETY PRECAUTIONS 

View clean working conditions: CLEAN WORKING CONDITIONS 

Prior to repair work, perform a preliminary check to verify the condition. Refer to PRELIMINARY CHECK .

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools and workshop equipment required 

• multimeter.
• Wiring diagram.

Test requirements 

• The ignition switched off.

Start diagnosis 

-- Disconnect the Intake Flap Motor -V157/G336- 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: approx. 5 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 the specified value was 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 the specified value was obtained:

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

Specified value: approx. 5.01 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 Intake Flap Motor -V157/G336-. 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 Intake Flap Motor -V157/G336- electrical harness connector to the Engine Control Module (ECM) -J623- electrical harness T60 connector for resistance.

Intake Flap Motor -V157/G336- electrical harness connector terminal	Engine Control Module (ECM) -J623- electrical harness connector T60 terminals or test box socket
1	10
2	27
3	51
4	35
5	50

Specified value: 1.5 Ω Max.

If the specification 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 .