Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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] ).
- A/C switch and related wiring harness
- If load condition is not as specified, inspect the following:
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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