Load compensation inspection

Start the engine and idle it.
Connect the WDS or equivalent 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 .)
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 INSTALLATION .)
  - Fan switch and related wiring harness (See CLIMATE CONTROL UNIT INSTALLATION .)