Load compensation inspection

Start the engine and idle it.
Connect the WDS or equivalent to the DLC-2.
Verify that P0506, P0507, or P0511 is not displayed.
- If P0506, P0507 or P0511 are displayed, perform DTC inspection.
  (See DTC TABLE ).
Access the RPM PID.
NOTE:
- Excludes temporary idle speed drop just after the loads are turned on.
Verify that the engine speed is within the specification under each load condition.
- If load condition is not as specified, inspect the following:
  - A/C switch and related wiring harness
    (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] ).
    
    (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER] ).
  - Fan switch and related wiring harness
    (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] ).
    
    (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER] ).

Engine speed

ENGINE SPEED REFERENCE CHART

Load condition

Engine speed (RPM)⁽¹⁾

MTX

ATX

No load

600-700

650-750

E/L operating⁽²⁾

38-48 A

650-750

more than 48 A

700-800

A/C operating⁽³⁾

Refrigerant pressure low⁽⁴⁾

700-800

650-750

Refrigerant pressure high⁽⁵⁾

700-800

670-770

⁽¹⁾	Neutral or P position

⁽²⁾	Generator generating current value

⁽³⁾	A/C switch and fan switch are on.

⁽⁴⁾	Refrigerant pressure switch (middle pressure) is off.

⁽⁵⁾	Refrigerant pressure switch (middle pressure) is on.