OPERATION
- Controls the current that is applied from the engine-A/T-ECU (terminals No. 133, No. 141) to the electronically controlled throttle valve (terminals No. 1, No. 2).
FUNCTION
- Engine-A/T-ECU check whether the throttle valve control servo magneto failed.
TROUBLE JUDGMENT
Check Condition
- Battery positive voltage is 8.3 V or higher.
Judgement Criteria
- The coil temperature of the throttle actuator control motor is
180°C or higher for 0.8 second. <Vehicles for Hong kong>
- Communication error or excessive heating is received in the intelligence power device for 0.8 second. <Vehicles except for Hong kong>
PROBABLE CAUSE
- Failed throttle valve control servo.
- Open/short circuit in throttle valve control servo circuit or lose connector contact.
- Failed engine-A/T-ECU
)
Q: Is the check result normal?
YES:
Go to Step 2 
.NO: Repair.
- Disconnect connector, and measure at electronically controlled throttle valve side.
- Resistance between terminal No. 1 and No. 2.
OK: 0.3 -
80 kΩ
(at 20 °C )
Q: Is the check result normal?
YES:
Go to Step 3 .NO: Replace throttle body assembly.
)
Q: Is the check result normal?
YES:
Go to Step 4 .NO: Repair.
- Check output line for short circuit and damage.
Q: Is the check result normal?
YES:
Go to Step 5 .NO: Repair.
- Check output line for short circuit and damage.
Q: Is the check result normal?
YES:
Go to Step 6 .NO: Repair.
