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IDLE SPEED INSPECTION [ZJ, ZY (WITH WU-TWC)]

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1. Verify that the idle speed is within the specification. (See IDLE SPEED ADJUSTMENT [ZJ, ZY (WITH WU-TWC)].)

2. Verify that the engine speed is within the specification when each load is applied. (The speed decrease just after the load is applied is not considered.)

  • If the engine speed is not within the specification with any of the specified loads applied, inspect the IAC valve.
  • If the engine speed is not within the specification when a specified load is applied, inspect the related input parts, wiring harnesses, and connectors.

Idle-up speed [With WU-TWC]

Load status | Idle speed (rpm)
--- | ---
P, N position (ATX) | Neutral (MTX)
No load | After the sensor detects the steering angle*1 | Steering angle is less than 60 | 650-750 | 650-750
Steering angle is above 60 | 650-750
Before the sensor detects the steering angle*1
A/C on | Refrigerant pressure switch (middle pressure) is off | 650-750
Refrigerant pressure switch (middle pressure) is on | 700-800
Electrical loads on | Generator generating current value | 30-40 A | 650-750
above 40 A | 700-800
P/S on | After the sensor detects the steering angle*1 | Steering angle is less than 180 | 650-750
Steering angle is above 180 | 700-800
Before the sensor detects the steering angle*1

  *1 :
The steering angle will be cleared if the ignition switch is turned off. The sensor detects the steering angle after the ignition switch is turned to the ON position and the vehicle is driven straight at a vehicle speed of 20 km/h {12 mph} or more.