Diagnosis Procedure

WARNING: This page is about a different car, the 2020 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 "ACTIVE TEST" 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 .