Camshaft Position Sensor 2, Checking

Camshaft Position Sensor 2, Checking

The following procedure is used to diagnose Camshaft Position (CMP) Sensor 2 (G163) which is controlled by Engine Control Module (J623).

• Use only gold-plated when servicing the electrical harness connector terminals of the Camshaft Position (CMP) Sensor 2 (G163).

Special tools, testers and auxiliary items required

• multimeter.

• Wiring diagram.

• Diode test lamp

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.

- Remove the engine cover with air filter. Refer to appropriate service manual.






- Disconnect the Camshaft position sensor 2 (G163) electrical harness connector - 1 -.






- Switch the ignition ON.

- Using a Multimeter, Check the Camshaft position sensor 2 (G163) electrical harness connector terminals 1 to 3 for voltage.






Specified value: near 5.0 V

- Switch the ignition off.

Continue test according to the following table:






Checking wiring

- Remove the Motronic Engine Control Module (ECM) (J623). Refer to appropriate service manual.

- Using a Multimeter, Check the Camshaft position sensor 2 (G163) electrical harness connector to the Motronic Engine Control Module (ECM) electrical harness connector T60 for an open circuit.











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 positive or Ground

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

- If necessary, repair the faulty wiring connection.

- Go to Final procedures

If the specified value was obtained:

- If no faults were found Replace the Motronic Engine Control Module (ECM) (J623). Refer to appropriate service manual.

- Go to Final procedures

Checking wiring

- Remove the Motronic Engine Control Module (ECM) (J623). Refer to appropriate service manual.

- Using a Multimeter, Check the Camshaft position sensor 2 (G163) electrical harness connector to the Motronic Engine Control Module (ECM) (J623) electrical harness connector T60 for an open circuit.











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 positive or Ground

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

- If necessary, repair the faulty wiring connection.

- Go to Final procedures

If the specified value was obtained:

- Replace the Camshaft position sensor 2 (G163). Refer to appropriate service manual.

Final procedures

- Reinstall the engine cover with air filter, if necessary. Refer to the appropriate service manual.

- 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 ] Programming and Relearning.