Camshaft Position Sensor: Inspection

Prepare an oscilloscope.
Remove the lower inner trim of passenger's side. Ref. to REMOVAL , Lower Inner Trim.
Turn over the floor mat of passenger's seat.
Remove the protect cover.

Fig 1: Locating Protect Cover Bolts
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Remove the nuts and bolts which hold the ECM to the bracket.

Fig 2: Locating ECM Bracket Bolts And Nuts
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Connect the probe to ECM connector.

Intake camshaft position sensor

Fig 3: Connecting Probe To ECM Connector (Intake Camshaft Position Sensor)
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Exhaust camshaft position sensor

Fig 4: Connecting Probe To ECM Connector (Exhaust Camshaft Position Sensor)

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CAMSHAFT POSITION SENSOR REFERENCE CHART

Camshaft position sensor		Terminal No.	Probe
Intake	RH	11	+
Intake	LH	21	+
Exhaust	RH	12	+
Exhaust	LH	31	+
RH and LH		22	-

Start the engine and let it idle.
Check the pattern is as same as the waveform and voltage shown below.

Fig 5: Voltage Waveform
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