Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
On-Vehicle Inspection
- CHECK CAMSHAFT POSITION SENSOR OUTPUT VOLTAGE
- Remove the V-bank cover sub-assembly. Refer to REMOVAL - Step 2 .
- Disconnect the 2 fuel delivery pipe connectors.
- Disconnect the 4 connectors with wire harness locks from the 2 injector drivers.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- To release each connector lock, push the claw downward ("Release" in the illustration) and move the lock lever ("Move" in the illustration).
- Perform this step to prevent the engine from starting.
- Remove the engine room ECU cover See step 5.
- Turn the engine switch on (IG).
HINT:
Do not start the engine.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition E3-18 (VC) - E4-32 (G2-) Engine switch on (IG) 5 V - While turning the crankshaft pulley by hand, measure the voltage between each terminal. Check that the voltage changes between the Hi range and Lo range shown in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition E4-24 (G2+) - E4-32 (G2-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi))
0.50 to 1.25 V (Voltage (Lo))
- CHECK VVT SENSOR OUTPUT VOLTAGE
- Remove the V-bank cover sub-assembly. Refer to REMOVAL - Step 2 .
- Disconnect the 2 fuel delivery pipe connectors.
- Disconnect the 4 connectors with wire harness locks from the 2 injector drivers.
HINT:
- To release each connector lock, push the claw downward ("Release" in the illustration) and move the lock lever ("Move" in the illustration).
- Perform this step to prevent the engine from starting.
- Remove the engine room ECU cover See step 5.
- Turn the engine switch on (IG).
HINT:
Do not start the engine.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition E3-18 (VC) - E4-33 (VV1-) Engine switch on (IG) 5 V E3-18 (VC) - E5-29 (VV2-) Engine switch on (IG) 5 V E3-18 (VC) - E3-33 (EV1-) Engine switch on (IG) 5 V E3-18 (VC) - E6-29 (EV2-) Engine switch on (IG) 5 V - While turning the crankshaft pulley by hand, measure the voltage between each terminal. Check that the voltage changes between the Hi range and Lo range shown in the table below.
Standard Voltage
Sensor Position Tester Connection Switch Condition Specified Condition Bank 1 (Intake side) E4-25 (VV1+) - E4-33 (VV1-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi))
0.50 to 1.25 V (Voltage (Lo))Bank 2 (Intake side) E5-19 (VV2+) - E5-29 (VV2-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi))
0.50 to 1.25 V (Voltage (Lo))Bank 1 (Exhaust side) E3-26 (EV1+) - E3-33 (EV1-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi))
0.50 to 1.25 V (Voltage (Lo))Bank 2 (Exhaust side) E6-22 (EV2+) - E6-29 (EV2-) Engine switch on (IG) 3.75 to 4.50 V (Voltage (Hi))
0.50 to 1.25 V (Voltage (Lo))
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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