Component Inspection

INSPECTION

1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY







a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the camshaft timing oil control valve.




b. Check the operation.
1. Apply battery voltage across the terminals and check that the spool valve operates.

NOTE: Check that the spool valve is not stuck.

HINT: The spool valve may not return if foreign objects are caught in it. This may cause subtle pressure leaks to the advance side, and a DTC may be set.

2. INSPECT MASS AIR FLOW METER




a. Check the operation.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Using a voltmeter, connect the positive (+) tester probe to terminal 3(VG), and negative (-) tester probe to terminal 2 (E2G).
3. Blow air into the mass air flow meter, then check that the voltage fluctuates.

If the voltage does not fluctuate, replace the mass air flow meter.







b. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the mass air flow meter.







3. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

NOTE: If checking the engine coolant temperature sensor in water, be careful not to allow water to intrude into the terminals. After checking, wipe the water off the engine coolant temperature sensor.

If the result is not as specified, replace the engine coolant temperature sensor.







4. INSPECT THROTTLE BODY ASSEMBLY
a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the throttle body.







5. INSPECT KNOCK SENSOR
a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the knock sensor.







6. INSPECT ACCELERATOR PEDAL ASSEMBLY
a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the accelerator pedal rod.







7. INSPECT MAIN RELAY
a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the main relay.







8. INSPECT CIRCUIT OPENING RELAY
a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the instrument panel junction block