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.

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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISSYMPTOM TROUBLESHOOTING [L3] - ENGINEENGINE CONTROL SYSTEM OPERATION INSPECTIONELECTRONIC THROTTLE CONTROL SYSTEM INSPECTIONLOAD COMPENSATION INSPECTION

2010 Mazda 5 Sport, 2.3 L, Standard

Load compensation inspection

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Load compensation inspection

Start the engine and idle it.
Connect the M-MDS to the DLC-2.
Verify that P0506 or P0507 is not displayed.
- If P0506 or P0507 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 INSPECTION [FULL-AUTO AIR CONDITIONER] .)
    
    (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER] .)
  - Fan switch and related wiring harness
    (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER] .)
    
    (See CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER] .)

Engine speed: MTX

LOAD STATUS (MTX)

Load status		Idle speed (rpm)
Load status		Neutral
No load		600-700
A/C on	Refrigerant pressure switch (middle pressure) is off	700-800
A/C on	Refrigerant pressure switch (middle pressure) is on	700-800
Electrical loads on	Generator generating current value	650-800

Engine speed: ATX

LOAD STATUS (ATX)

Load status		Idle speed (rpm)
Load status		N range	D range
No load		650-750	550-650
A/C on	Refrigerant pressure switch (middle pressure) is off	650-750
A/C on	Refrigerant pressure switch (middle pressure) is on	670-770
Electrical loads on	Generator generating current value	600-800

RENDER: 1.0x

NO RELATED

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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.