Load compensation inspection

Start the engine and run it is idling.
Verify that the DTC P0506:00 or P0507:00 is not displayed. (See ON-BOARD DIAGNOSTIC TEST ).
- If the DTC P0506:00, or P0507:00 is displayed, perform the DTC inspection. (See DTC P0506:00 ). (See DTC P0507:00 ).
Access the RPM PID using the M-MDS. (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 the load condition is not as specified, inspect the following:
  - A/C system (A/C request signal is always on or off) (See NO. 23 A/C DOES NOT WORK SUFFICIENTLY ). (See NO. 24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY ).
  - Electrical load
  - Charging system (See BATTERY INSPECTION [L3 WITH TC] ). (See GENERATOR INSPECTION [L3 WITH TC] ).

ENGINE SPEED

Load condition

Engine speed (rpm)

Neutral

No load

650-750

Electrical load on⁽¹⁾

650-750

A/C operating

700-800

⁽¹⁾	When the following electrical loads are on: Headlights, rear defroster, cooling fan No. 1, cooling fan No. 2, and the blower motor (2-step or more)