Idle-Up Operation Check

1. Before inspection and adjustment, set vehicle in the following condition:
- Engine coolant temperature: 80 - 90 °C (176.0 - 194.0 °F)
- Lights, electric cooling fan and accessories: Set to OFF
- Transmission: Neutral ("N" or "P" for vehicles with A/T)
- Steering wheel: Straightforward

2. Check whether or not the idle speed is the standard value. Refer to On-vehicle Service - Basic Idle Speed Adjustment.

Standard value: 750 ± 100 r/min

3. When the A/C is running after turning the A/C switch to ON, and the blower switch to the 3(MH) or 4(HI) position, check to be sure that the idle speed is at the standard value.


Standard value: 850 ± 50 r/min

NOTE: The engine control module /the powertrain control module determines whether the A/C load is low or high according to the output signal from the automatic compressor controller.

NOTE: It is not necessary to make an adjustment, because the idling speed is automatically adjusted by the ISC system. If, however, a deviation from the standard value occurs for some reason, check the ISC system.

NOTE: Check 4 minutes after idling begins.