OPERATION
- Refer to P2101 -
Throttle valve control servo circuit
.
FUNCTION
- Engine-A/T-ECU checks the electronic controlled throttle system for abnormal conditions.
TROUBLE JUDGMENT
Check Conditions <Vehicles except for Hong kong>
- Ignition switch is "ON" position.
- Accelerator pedal position sensor is normal.
- Throttle position sensor is normal.
- Completion of throttle position sensor is learning.
- Throttle position sensor (main) output voltage is 0.2 - 4.85 V.
- Battery positive voltage is 8.3 V or higher.
Judgement Criteria <Vehicles except for Hong kong>
- For one second, difference is 1 V or more between voltage in the target opening degree of the engine-A/T-ECU and in the throttle position sensor (main) output.
- For one second, voltage is 1.5 V or less in the target opening degree controlled by the engine-A/T-ECU.
- For one second, difference is 0.6 V or more between voltage in the target opening degree of the engine-A/T-ECU and in the throttle position sensor.
Check Conditions
- Battery positive voltage is 8.3 V or higher.
- Throttle position sensor (main) output voltage is 0.35 - 4.8 V. <Vehicles for Hong kong>
- Throttle position sensor (main) output voltage is 0.2 - 4.8 V. <Vehicles except for Hong kong>
- Ignition switch is "ON" position.
- Drop of throttle position sensor (main) output voltage per 100 milliseconds is 0.04 V or more.
Judgement Criteria
- Throttle position sensor (main) output voltage has continued to be above 0.5 V higher than the target throttle position sensor (main) voltage for 0.5 second.
Check Conditions
- Battery positive voltage is 8.3 V or higher.
- Throttle position sensor (main) output voltage is 0.35 - 4.8 V. <Vehicles for Hong kong>
- Throttle position sensor (main) output voltage is 0.2 - 4.8 V. <Vehicles except for Hong kong>
- Ignition switch is "ON" position.
Judgement Criteria
- Intelligence power device temperature warning flag set. <Vehicles except for Hong Kong >
- Difference between throttle position sensor (main) output voltage and target throttle position sensor (main) voltage is 1 V or higher for 4 seconds.
Check Conditions <Vehicles except for Hong kong>
- Ignition switch is "ON" position.
- Motor relay is ON.
- Battery positive voltage is 8.3 V or higher.
- Idle speed control is during the feedback of the engine-A/T-ECU.
- Completion of throttle position sensor is learning.
- Water temperature is
-40°C or higher.
Judgement Criteria <Vehicles except for Hong kong>
- Throttle position sensor (main) output voltage continued to be above 0.05 V higher than the opening degree of engine-A/T-ECU for 10 seconds.
Check Conditions <Vehicles except for Hong kong>
- Ignition switch is "ON" position.
- Throttle position sensor is normal.
Judgement Criteria <Vehicles except for Hong kong>
- Throttle position sensor (main) mid opening learning value is 0.4 V or more.
PROBALE CAUSE
- Failed throttle valve return spring.
- Failed throttle valve operation.
- Failed throttle valve control servo.
- Open/short circuit in throttle valve control servo connector contact.
- Failed engine-A/T-ECU.
)
)
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.