Load compensation inspection

Start the engine and idle it.
Connect the M-MDS to the DLC-2.
Verify that P0506:00 or P0507:00 is not displayed. (See ON-BOARD DIAGNOSTIC TEST .)
- If P0506:00 or P0507:00 are displayed, perform DTC inspection. (See DTC P0507:00 .)
Access the RPM PID. (See ON-BOARD DIAGNOSTIC TEST .)
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
  - Fan switch and related wiring harness

IDLE-UP SPEED

Load status			Idle speed (rpm)
Load status			ATX: P, N position	MTX: Neutral
No load			600-700
A/C on (With A/C)	Refrigerant pressure switch (middle pressure) is off		600-700	650-750
A/C on (With A/C)	Refrigerant pressure switch (middle pressure) is on		700-800
Electrical loads on	Generator generating current value	32-40 A	600-700	650-750
Electrical loads on	Generator generating current value	above 40 A	700-800