Camshaft Position Sensor, Checking: Notes

Observe all safety precautions: SAFETY PRECAUTIONS .

View clean working conditions: CLEAN WORKING CONDITIONS .

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the appropriate System Wiring Diagram.

Special tools and workshop equipment required

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 .

Start diagnosis

-- Remove the engine cover with air filter. Refer to appropriate Service Information.

Fig 1: Engine Cover -1- And -2-

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-- Disconnect the Camshaft Position Sensor -G40- electrical harness connector -1-.

Fig 2: Identifying Connector -1- And Bolt -Arrow-

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-- Switch the ignition ON.

-- Using a Multimeter, Check the Camshaft Position (CMP) Sensor -G40- electrical harness connector terminals 1 to 3 for voltage.

Specified value: about 5.0 V.

-- Switch the ignition OFF.

Continue test according to the following table:

Value	Cause	Test
If the specified value was not obtained:	Open or shorted circuit	CAMSHAFT POSITION SENSOR, CHECKING => Checking wiring
If the specified value was obtained:	Check reference signal circuit	CAMSHAFT POSITION SENSOR, CHECKING => Checking Activation