Timing sensor power supply check

Select the VOLTMETER mode from the INSTRUMENT menu on Examiner

Connect the positive probe to pin 3 and the negative probe to pin 1 of the timing sensor

Turn the ignition to MARCIA and check for a voltage of approximately 5 Volts

Restore the wiring between the engine control unit and the sensor

If the wiring is OK and the power supply is interrupted at the control unit output

Replace the engine control unit

Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R

Timing sensor signal check

Prepare the diagnostic equipment to download a voltage graph.

Select the VOLTMETER function from the INSTRUMENT menu with the time set at 2 seconds.

Connect it to the probes between pins 3 and 2.

Press the START button on the diagnostic equipment to begin downloading a graph.

Crank the engine for at least 5 seconds and check that the signal corresponds to the attached graph.

Move on to Step 3

Restore the wiring between the engine control unit and the timing sensor

Replace the timing sensor

Op. 1060G22 CAM ANGLE SENSOR - R.R

Timing sensor visual inspection

Check, by removing the timing sensor, that the final side of the sensor and the signal rotor tooth do not have metal particles or signs of damage.

Replace the timing sensor

Op. 1060G22 CAM ANGLE SENSOR - R.R

Replace the camshaft if the rotor-signal tooth is damaged

Op. 1036C10 CAMSHAFTS IN CAMSHAFT HOUSING - R.R - INCLUDES CAMSHAFT HOUSING REPLACEMENT, IF NECESSARY