Page 2945 of 4500
Standard: 0.6 to 1.0 V
If the result is not as specified, replace the accelerator pedal position sensor.
3.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY
Fig. 5: Connecting Hand
-Held Tester DLC3 (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Connect the hand-held tester (with CAN VIM) to the DLC3.
b. Turn the ignition switch ON.
c. Start and warm up the engine.
d. Connect the hand-held tester and select VVT from the ACTIVE TEST menu.
e. Check the engine speed when the OCV is operated by the hand-held tester.
OK:
ConditionSpecified Condition
VVT system is OFF (OCV is OFF)Normal engine speed
VVT system is ON (OCV is ON)Rough idle or engine stalled
Page 2946 of 4500
INSPECTION
1.INSPECT MASS AIR FLOW METER
Fig. 6: Identifying Connector Terminals
Page 2947 of 4500
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Check the output voltage.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-)
tester probe to terminal E2G.
3. Blow air into the MAF meter, and check that the voltage fluctuates.
b. Measure the resistance between terminals 4 (THA) and 5 (E2).
STANDARD:
If the result is not as specified, replace the MAF meter.
2.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY
ConditionSpecified Condition
-20°C (-4°F)13.6 to 18.4 kohms
20°C (68°F)2.21 to 2.69 kohms
60°C (140°F)0.493 to 0.667 kohms
Page 2948 of 4500
Fig. 7: Measuring Resistance Between Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Using an ohmmeter, measure the resistance between the terminals.
Standard: 6.9 to 7.9 ohms at 20°C (68°F)
b. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2. Check the
movement of the valve.
OK:
Fig. 8: Battery Voltage Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
If operation is not as specified, replace the valve.
3.INSPECT ACCELERATOR PEDAL ROD ASSY
Page 2949 of 4500
Fig. 9: Inspecting Accelerator Pedal Rod Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Measure the resistance between the terminals.
STANDARD:
If the result is not as specified, replace the pedal assy.
4.INSPECT THROTTLE BODY ASSY
Tester ConnectionSpecified Condition
2 (VPA2) - 3 (EP1)5.0 kohms or less
5 (VPA1) - 1 (EP2)5.0 kohms or less
6 (VCP1) - 3 (EP1)1.5 to 6.0 kohms
4 (VCP2) - 1 (EP2)1.5 to 6.0 kohms
Page 2950 of 4500
Fig. 10: Inspecting Throttle Body Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Measure the resistance between the terminals.
STANDARD:
If the result is not as specified, replace the throttle body assy.
5.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Tester ConnectionConditionSpecified Condition
2 (M+) - 1 (M-)20°C (68°F)0.3 to 100 ohms
5 (VC) - 3 (E2)20°C (68°F)1.2 to 3.2 kohms
Page 2951 of 4500
Fig. 11: Inspecting Engine Coolant Temperature Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Measure the resistance between the terminals.
Page 2952 of 4500
STANDARD:
If the result is not as specified, replace the sensor.
6.INSPECT KNOCK SENSOR
Fig. 12: Inspecting Knock Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Using an ohmmeter, measure the resistance between the terminals.
Standard: 120 to 280 kohms at 20°C (68°F)
If the result is not as specified, replace the sensor.
7.INSPECT RELAY (Marking: EFI MAIN, C/OPN)
ConditionSpecified Condition
Approx. 20°C (68°F)2.32 to 2.59 kohms
Approx. 80°C (176°F)0.31 to 0.326 kohms