Component Inspection
INSPECTION1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not as specified, replace the camshaft timing oil control valve.
b. Check the operation.
1. Connect the positive (+) lead from the battery to terminal 2 (+) and negative (-) lead to terminal 1 (-), then check the movement of the spool valve.
NOTE: Confirm that the spool valve moves freely and does not get stuck in any position.
HINT: Bad returning of the spool valve resulted from catching foreign objects causes subtle pressure leak to the advanced direction. In that case, DTC can be detected.
2. INSPECT MASS AIR FLOW METER
a. Check the operation.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Using voltmeter, connect the positive (+) tester probe to terminal 3 (VC), and negative (-) tester probe to terminal 2 (E2G).
3. Blow air into the mass air flow sensor, then check that the voltage fluctuates.
If the operation is not as specified, replace the mass air flow sensor.
b. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not as specified, replace the mass air flow sensor.
3. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
NOTE: When checking the engine coolant temperature sensor in water, be careful not to allow water to intrude into the terminals. Then dry the engine coolant temperature sensor after checking.
If the resistance is not as specified, replace the engine coolant temperature sensor.
4. INSPECT THROTTLE BODY ASSY
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not as specified, replace the throttle body.
5. INSPECT KNOCK SENSOR
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not specified, replace the knock sensor.
6. INSPECT ACCELERATOR PEDAL ASSY (NORMAL PEDAL)
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not specified, replace the accelerator pedal.
7. INSPECT ACCELERATOR & BRAKE PEDAL ASSY (POWER PEDAL)
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not specified, replace the accelerator & brake pedal.
8. INSPECT MAIN RELAY
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the result is not as specified, replace the main relay.
9. INSPECT CIRCUIT OPENING RELAY
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the result is not as specified, replace the circuit opening relay.