DTC Confirmation 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.

PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:

Always perform test at a temperature of 5 deg.C (41 deg.F) or more.

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

Start engine and warm it up to normal operating temperature.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
On CONSULT screen, select "ENGINE">>"Data Monitor".
Make sure that "FUEL T/TMP SE" is more than 0 deg.C (32 deg.F).
Start engine and wait at least 20 seconds.
Check 1st trip DTC.

With GST

Start engine and warm it up to normal operating temperature.

Set voltmeter probes to ECM harness connector terminals as per the following.

ECM
Connector	+	-
	Terminal
E32	173	200

Make sure that the voltage is less than 4.2 V.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Turn ignition switch OFF and wait at least 10 seconds.
Start engine and wait at least 20 seconds.
Check 1st trip DTC.

Is DTC P0453 detected?

YES

Proceed to Diagnosis Procedure .

To check malfunction symptom before repair: Refer to Intermittent Incident .

Confirmation after repair: INSPECTION END