Intake Manifold Runner Position Sensor, Checking

Intake Manifold Runner Position Sensor, Checking

Special tools, testers and auxiliary items required

• Multimeter.

• Wiring diagram.

Test requirements

• The Engine Control Module (ECM) (J623) fuses OK.

• Battery voltage at least 12.5 volts.

• All electrical consumers such as, lights and rear window defroster, switched off.

• Vehicles with automatic transmission, shift selector lever into position "P" or "N".

• A/C switched off.

• Ground connections between engine/transmission/chassis OK.

• Ignition switched OFF.

Test procedure

- Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] Preliminary Check

Start diagnosis

- Remove the engine cover with air filter. Refer to the Repair Informatiom.

- Disconnect the Intake Manifold Runner Position Sensor (G336) electrical harness connector.

- Switch the ignition ON.

- Using a multimeter, check the Intake Manifold Runner Position Sensor (G336) electrical harness connector terminal 1 to ground for voltage.

Specified value: near 5 V

- Switch ignition OFF.

If the specified value was obtained:

- Using a multimeter, connect the black lead to terminal 3 and the red lead to Battery positive.

Specified value: Battery voltage.

If the specified values were 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 the specified values were obtained:

Checking internal resistance

- Using a multimeter, check the Intake Manifold Runner Position Sensor (G336) electrical terminals 2 to 3 for resistance.

Specified value: 7-25 ohms (at approx. 20° C)

- Using a multimeter, check the Intake Manifold Runner Position Sensor (G336) electrical terminals 1 to 3 for resistance.

Specified value: 204 - 284 ohms (at approx. 20° C)

If the specified values were Not obtained:

- Replace the Intake Manifold Runner Position Sensor (G336). Refer to appropriate service informatiom.

Checking wiring

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

- Using a multimeter, check the Intake Flap Motor (V157) / Intake Manifold Runner Position Sensor (G336) electrical harness connector terminals to the Engine Control Module (ECM) (J623) electrical harness connector T60 terminals for an open circuit.






Specified value: 1.5 ohms 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 no malfunction is detected in the wiring:

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

- Install the engine cover with air filter. Refer to the Repair Informatiom.

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.