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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 551 (SYMPTOM TROUBLESHOOTING [ENGINE (L3))ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3]ELECTRONIC 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

WARNING: This page is about a different car, the 2008 Mazda 5. However, it is still accessible from the selected car via links, so may be relevant.

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 [L3] .)
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

ENGINE SPEED - LOAD STATUS (MTX)

Load status			Idle speed (rpm)
Load status			Neutral
No load			600-700
A/Con	Refrigerant pressure switch (middle pressure) is off		700-800
A/Con	Refrigerant pressure switch (middle pressure) is on		700-800
Electrical loads on	Generator generating current value	38-48 A	650-750
Electrical loads on	Generator generating current value	Over 48 A	700-800

Engine speed: ATX

ENGINE SPEED - LOAD STATUS (ATX)

Load status			Idle speed (rpm)
Load status			N range	D range
No load			650-750	550-650
A/Con	Refrigerant pressure switch (middle pressure) is off		650-750
A/Con	Refrigerant pressure switch (middle pressure) is on		670-770
Electrical loads on	Generator generating current value	38-48 A	650-750	600-700
Electrical loads on	Generator generating current value	Over 48 A	700-800	670-770

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.