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 (MT: Neutral position, AT: P, N position) 

• No load: 660-760 rpm (MT), 670-770 rpm (AT)
• A/C on (With A/C): 720-870 rpm (MT), 700-800 rpm (AT)
• Electrical loads on: 680-780 rpm (MT), 690-790 rpm (AT)

Related PIDs