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 MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSDOOR & LOCKSYMPTOM DIAGNOSISP RANGE INTERLOCK DOOR LOCK/UNLOCK FUNCTION DOES NOT OPERATEDIAGNOSIS PROCEDURE

2019 Infiniti Q70 3.7 Luxe, AWD

Diagnosis Procedure

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Diagnosis Procedure

CHECK "AUTOMATIC LOCK/UNLOCK SELECT" SETTING IN "WORK SUPPORT"
1. Select "DOOR LOCK" of "BCM" using CONSULT.
2. Select "AUTOMATIC LOCK/UNLOCK SELECT" in "WORK SUPPORT" mode.
3. Check "AUTOMATIC LOCK/UNLOCK SELECT" setting in "WORK SUPPORT".
  Refer to CONSULT Function (BCM - DOOR LOCK) .
Is the inspection result normal?

YES

GO TO 2.

NO

Set "Unlock Only", "Lock Only" or "Lock/Unlock" in "AUTOMATIC LOCK/UNLOCK SELECT".
CHECK "AUTOMATIC DOOR LOCK SELECT" SETTING IN "WORK SUPPORT"
1. Select "DOOR LOCK" of "BCM" using CONSULT.
2. Select "AUTOMATIC DOOR LOCK SELECT" in "WORK SUPPORT" mode.
3. Check "AUTOMATIC DOOR LOCK SELECT" setting in "WORK SUPPORT".
  Refer to CONSULT Function (BCM - DOOR LOCK) .
Is the inspection result normal?

YES

GO TO 3.

NO

Set "P RANGE" in "AUTOMATIC DOOR LOCK SELECT".
CHECK "AUTOMATIC DOOR UNLOCK SELECT" SETTING IN "WORK SUPPORT"
1. Select "DOOR LOCK" of "BCM" using CONSULT.
2. Select "AUTOMATIC DOOR UNLOCK SELECT" in "WORK SUPPORT" mode.
3. Check "AUTOMATIC DOOR UNLOCK SELECT" setting in "WORK SUPPORT".
  Refer to CONSULT Function (BCM - DOOR LOCK) .
Is the inspection result normal?

YES

GO TO 4.

NO

Set "MODE 2" or "MODE 4" in "AUTOMATIC DOOR UNLOCK SELECT".
REPLACE BCM
- Replace BCM. Refer to Removal and Installation .
- Confirm the operation after replacement.
Is the result normal?

YES

INSPECTION END

NO

Check intermittent incident. Refer to Intermittent Incident .

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.