Load compensation inspection
- Start the engine and run it is idling.
- Connect the M-MDS to the DLC-2.
- Verify that DTC P0506 or P0507 is not displayed.
- If DTC P0506, or P0507 is displayed, perform the DTC inspection.
(See DTC TABLE ).
- If DTC P0506, or P0507 is displayed, perform the DTC inspection.
- Select 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 the load condition is not as specified, inspect the following:
- A/C switch and related wiring harness
- Fan switch and related wiring harness
- PSP switch and related wiring harness
Engine speed
ENGINE SPEED REFERENCE CHARTLoad condition Engine speed (RPM)(1) No load 650-750 E/L operating 650-750 P/S operating 650-750 A/C operating(2) Refrigerant pressure low(3) 700-800 Refrigerant pressure high(4) 725-825 (1) Neutral (2) A/C switch and fan switch are on. (3) Refrigerant pressure switch (middle pressure) is off. (4) Refrigerant pressure switch (middle pressure) is on. - If the load condition is not as specified, inspect the following: