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 MANUALSINFINITI2012M56 V8-5.6L (VK56VD)REPAIR AND DIAGNOSISSTARTING AND CHARGINGPOWER AND GROUND DISTRIBUTIONPOWER DISTRIBUTION MODULETESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESDIAGNOSIS DESCRIPTION
2012 Infiniti M56 V8-5.6L (VK56VD)
Diagnosis Description
2012 Infiniti M56 V8-5.6L (VK56VD)SECTION Diagnosis Description
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis Description
AUTO ACTIVE TEST
Description
In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation.
- Oil pressure warning lamp (only for models with VQ-37VHR engine)
- Front wiper (LO, HI)
- Parking lamp
- License plate lamp
- Tail lamp
- Side marker lamp
- Front fog lamp
- Headlamp (LO, HI)
- A/C compressor (magnet clutch)
- Cooling fan (cooling fan control module)
Operation Procedure
CAUTION:
Wiper arm interferes with food when wiper is operated while wiper arm is in the raised position.
Always perform auto active test without setting wiper arm in the raised position. Always pour water on front windshield glass in advance to auto active test so that damage on front windshield grass surface is prevented.
NOTE:
Never perform auto active test in the following condition.
- Engine is running
- CONSULT is connected
- Close passenger door.
1.Turn the ignition switch OFF.
2.Turn the ignition switch ON, and within 20 seconds, press the front door switch (driver side) 10 times.
Then turn the ignition switch OFF.
NOTE:
Within 5 seconds after ignition switch is turned to the ON position and when driver door switch is pressed
6 times or more within 4 seconds, self-diagnosis function for BOSE amp. activates and speaker sounds.
After waiting for 5 seconds or more after ignition switch is turned to the ON position and when driver door switch is operated, self-diagnosis function for BOSE amp. does not activate.
3.Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
NOTE:
Engine starts when ignition switch is turned ON while brake pedal is depressed.
4.The oil pressure warning lamp starts blinking when the auto active test starts.
5.After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
- When auto active test has to be cancelled halfway through test, turn the ignition switch OFF.
- When auto active test is not activated, door switch may be the cause. Check door switch. Door Switch.
Inspection in Auto Active Test
When auto active test is actuated, the following 6 steps are repeated 3 times.
Concept of auto active test
- IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communication. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto active test starts successfully.
- The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.