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.
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 switch and related wiring harness (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] .) (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER] .)
  - Fan switch and related wiring harness (See FAN SWITCH INSPECTION [MANUAL AIR CONDITIONER] .)
Idle speed (ATX: P, N position, MTX: Neutral position)
- 600-700 rpm (MTX), 650-750 (ATX)
  Idle-up speed (ATX: P, N position, MTX: Neutral position)
- A/C on: 700-800 rpm (MTX), 650-770 (ATX)
- Electrical loads on: 650-800 rpm