Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM DTC CONFIRMATION PROCEDURE?
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC confirmation procedure. Refer to DTC Confirmation Procedure .
Is the DTC P34C4 displayed again?

YES

Replace electric IVT control module. Refer to Removal and Installation .

NO

GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE 2
Start the engine and let it idle.

Is the DTC P34C4 displayed again?

YES

GO TO 5.

NO

GO TO 3.
PERFORM COMPONENT FUNCTION CHECK
Perform "INT V/T ASSIGN ANGLE" in "WORK SUPPORT" mode with CONSULT.

Is electric intake valve timing (IVT) control actuator activate?

YES

GO TO 4.

NO

Refer to Diagnosis Procedure .

NO

Refer to Diagnosis Procedure .
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to Intermittent Incident .

Is the inspection result normal?

YES

Repair or replace error-detected parts.

NO

INSPECTION END
CHECK INTAKE VALVE TIMING POSITION BY MEANS OF ACTUAL VALUE 1
1. Start the engine.
2. Let engine idle for 1 minutes.
3. On CONSULT screen, select "ENGINE" >> "Data Monitor".
4. Check indication value of the "INT/V TIM (B1)" and "INT/V TIM (B2)"
Is the value between "-5 deg. and 5 deg. CA" displayed on CONSULT screen?

YES

Replace electric IVT control module. Refer to Removal and Installation .

NO

Refer to Diagnosis Procedure .

NO

Refer to Diagnosis Procedure .