Load compensation inspection

1. Start the engine and let it idle.
2. Connect the M-MDS to the DLC-2.
3. Verify that DTC P0506:00 or P0507:00 is not displayed. (See DTC INSPECTION .)
   • If DTC P0506:00 or P0507:00 is displayed, perform the DTC inspection. (See DTC P0506:00 [PCM (VIN Y)] .) (See DTC P0507:00 [PCM (VIN Y)] .)
4. Select the ENG_RPM PID.
   NOTE:

   • Excludes temporary idle speed drop just after the loads are turned on.
5. 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 A/C DOES NOT WORK SUFFICIENTLY [FULL-AUTO AIR CONDITIONER (WITHOUT Mazda M Hybrid)] .) (See A/C DOES NOT WORK SUFFICIENTLY [MANUAL AIR CONDITIONER (WITHOUT Mazda M Hybrid)] .) (See A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [FULL-AUTO AIR CONDITIONER] .) (See A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [MANUAL AIR CONDITIONER] .)
     • Electrical load
     • Charging system (See BATTERY INSPECTION [(US)] .) (See GENERATOR INSPECTION .)

Idle-up speed (P, N position) 

No load: 650-750 rpm

A/C on: 650-850 rpm

Electrical loads on: 650-850 rpm