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.
- If P0506:00 or P0507:00 are displayed, perform DTC inspection. (See DTC P0506:00 .) (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 system (A/C request signal 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 [L5] .)
  - Electrical load
  - Charging system (See BATTERY INSPECTION [L5] .) (See GENERATOR INSPECTION [L5] .)
  - PSP switch (See POWER STEERING PRESSURE (PSP) SWITCH INSPECTION .)
  Idle-up speed (P, N position)
  
  No load: 600-700 rpm
  
  A/C on: 600-800 rpm
  
  Electrical loads on: 650-750 rpm
  
  Power steering operating: 670-770 rpm