HEATER, AIR CONDITIONER AND VENTILATION ± On-vehicle Service
55-18
IDLE-UP OPERATION CHECK
1. Before inspection and adjustment, set vehicle in the
following condition:
D Engine coolant temperature: 80 ± 90_C
D Lights, electric cooling fan and accessories: Set to
OFF
D Transmission: Neutral (N or P for vehicles with A/T)
D Steering wheel: Straightforward
2. Check whether or not the idling speed is the standard
value.
Standard value: 600 ± 50 r/min
3. When the A/C is running after turning the A/C switch to
ON, and the blower switch to the MH or HI position, check
to be sure that the idle speed is at the standard value.
Standard value: A/C at low load 700 ± 50 r/min
A/C at high load 800 ± 50 r/min
NOTE
There is no necessity to make an adjustment, because
the idling speed is automatically adjusted by the ISC
system. If, however, there occurs a deviation from the
standard value for some reason, check the ISC system.
(Refer to GROUP 13A ± On-vehicle Service.)
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