Load compensation inspection

1. Start the engine and let it idle.
2. Connect the M-MDS to the DLC-2.
3. Select the RPM PID.
   NOTE:

   • Excludes temporary idle speed drop just after the loads are turned on.
4. Verify that the engine speed is within specification under each load condition.

• If the load condition is not as specified, inspect the following:

• A/C switch and related wiring harness 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 .) (See GENERATOR INSPECTION .)

Idle-up speed (P position or N position)

A/C on: 650-800 RPM

Electrical loads on: 650-800 RPM