IDLE-UP OPERATION CHECK


<Except for 4M40>
1.Before inspection and adjustment, set vehicle in the following condition:

  • Engine coolant temperature: 80 - 90 °C
  • Lamps, 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 GROUP 11A, On-vehicle Service - Basic Idle Speed Adjustment . <6G72>
Standard value: 700 ± 50 r/min
Refer to GROUP 11C, On-vehicle Service - Basic Idle Speed Adjustment . <6G75>
Standard value: 700 ± 50 r/min
Refer to GROUP 11G, On-vehicle Service - Basic Idle Speed Adjustment . <4M41>
Standard value: 700 ± 50 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.
<3000>
Standard value:
A/C at low load: 700 ± 50 r/min
A/C at middle load: 800 ± 50 r/min
A/C at high load: 1,000 ± 50 r/min
<3800>
Standard value:
A/C at low load: 700 ± 50 r/min
A/C at middle load: 800 ± 50 r/min
A/C at high load: 1,000 ± 50 r/min
<3200>
Standard value:
A/C at low load: 750 ± 50 r/min
A/C at high load: 1,000 ± 50 r/min
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.

<4M40>
1.Before inspection and adjustment, set vehicle in the following condition:

  • Engine coolant temperature: 80 - 90 °C
  • Lamps, 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.
Standard value: 750 ± 100 r/min
3.If there is a deviation of the idling speed from the standard value, adjust the idling speed. (Refer to GROUP 11E, On-vehicle Service - Idle Speed Adjustment ).
4.Check to be sure that the idling speed becomes the standard value when the A/C switch is switched ON and the A/C is activated.
Standard value: 900 ± 25 r/min

5.If there is a deviation of the idling speed from the standard value, adjust the idling speed by the following the procedures.

  1. Loosen nuts (A) and (B).
  2. Adjust, by using the adjuster, so that the end of the vacuum actuator’s rod is at the position indicated in the illustration.
  3. Securely tighten nuts (A) and (B).
  4. After activating the vacuum actuator, check to be sure that the rod and the lever do not contact when the activation is cancelled.
  5. Remove the cap and loosen the nut for holding.
  6. Adjust to the specified r/min by turning the adjusting screw.
  7. Securely tighten the holding nut, and then attach the cap.