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 Intake Manifold Runner Position Sensor (G336 ) fuse OK.

• The Engine Component Power Supply Relay (J757) OK.

• The parking brake engaged.

• The battery voltage at least 12.5 V.

• The selector lever of automatic transmission in position "P" or " N".

• All electrical consumers switched off (radiator fan must NOT run during test).

• A/C switched off.

• The fuel tank at least 1/4 filled.

• The ignition switched off.

Test procedure

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

Start diagnosis

- Remove the rear engine cover - arrows -.





• The Intake manifolds have been removed for clarity.

- Disconnect the Intake Manifold Runner Position Sensor (G336) electrical harness connector - 1 -.





Checking voltage supply

Switch the ignition on.

- Using a Multimeter, check the Intake Manifold Runner Position Sensor (G336) electrical harness connector for voltage.









Switch the ignition off.

If the specified values are obtained:

- Replace the Intake Manifold Runner Position Sensor (G336).

If the specified values are not obtained:

Checking wiring

If the manufacturers test box is being used. Perform the following step.

- Install the test box. Refer to Fuel Injection and Ignition Repair Information.

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

- Remove the Engine Control Module (ECM) (J623 ). Refer to => [ ECM, Removing and Installing ] ECM, Removing and Installing.

- Using a multimeter, check the 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 specification was not obtained:

- Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

- Check the electrical harness connector for damage, corrosion, lose 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 => [ ECM, Removing and Installing ] ECM, Removing and Installing.

The Intake Manifold Runner Position Sensor (G336 ) must be adapted to the Engine Control Module (ECM) (J623).

To adapt the Intake Manifold Runner Position Sensor (G336) to the Engine Control Module (ECM) ( J623) perform the following steps:

Test requirements

• The battery voltage at least 12.5 V.

• Coolant temperature must be between 20° C and 80° C.

• No DTC's stored in DTC memory.

- Start the engine and let run at idle for at least 70 seconds.

- The Engine Control Module (ECM) (J623) will automatically adept the Intake Manifold Runner Position Sensor (G336).

- Install the rear engine cover - arrows -.





Final procedures

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

1. Check the DTC memory. => [ Diagnostic Mode 03 - Read DTC Memory ] Diagnostic Mode 03 - Read DTC Memory.

2. If necessary, erase the DTC memory. => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Mode 04 - Erase DTC Memory.

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

- End of diagnosis.