Camshaft Adjustment Actuators, Intake, Checking

Camshaft Adjustment Actuators, Intake, Checking

The following procedure is used to diagnose Cam Adjustment Actuators (F366, F367, F368, F369) which are controlled by Engine Control Module (J623).

Special tools, testers and auxiliary items required

• multimeter.

• Wiring diagram.

Test requirements

• The Engine Control Module (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 (GND) 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

- Disconnect appropriate Cam Adjustment Actuator (F366, F367, F368, F369) electrical harness connectors - item 26 -.





Checking internal resistance

- Using a multimeter, check the Cam Adjustment Actuators (F366, F367, F368, F369) for resistance.





Specified value: 5.0 to 10.0 ohms (at approx. 20° C)

If the specified value was not obtained:

- Replace the appropriate Cam Adjustment Actuator (F366, F367, F368, F369). Refer to appropriate service manual.

If the specified value was obtained:

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 (J623). Refer to appropriate service manual.

- Using a multimeter, check the Cam Adjustment Actuator (F366, F367, F368, F369) electrical harness connector to the Engine Control Module (J623) electrical harness connector for resistance.





Specified value: 1.5 ohms Max.

If the specified value was not obtained:

- Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).

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

- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was OK:

- Replace the Engine Control Module (J623). Refer to appropriate service manual.

Assembly is performed in the reverse order of the removal, note the following:

Final procedures

After 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 ] Scan Tool Testing and Procedures.

2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] Scan Tool Testing and Procedures.

3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] Readiness Code.