Load Compensation Inspection

Start the engine and idle it.
Connect the M-MDS to the DLC-2.
Verify that P0506, P0507, or P0511 is not displayed.
- If P0506, P0507 or P0511 are displayed, perform DTC inspection. (See DTC TABLE [LF] ).
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. (See ENGINE TUNE-UP [LF] ).
- If load condition is not as specified, inspect the following:
  - A/C switch and related wiring harness
    (See CLIMATE CONTROL UNIT INSPECTION (MANUAL AIR CONDITIONER) ).
    
    (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] ).
  - Fan switch and related wiring harness
    (See CLIMATE CONTROL UNIT INSPECTION (MANUAL AIR CONDITIONER) ).
    
    (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] ).