DTC Confirmation 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.

CHECK DTC PRIORITY
If DTC P0090 is displayed with DTC P1197, first perform the confirmation procedure (trouble diagnosis) for DTC P1197.

Is DTC P1197 detected?

YES

Perform diagnosis for P1197. Refer to DTC Description .

NO

GO TO 2.
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:
- Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
- Before performing the following procedure, check that the fuel tank is 1/8 full of fuel.
GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT

Start engine.
On CONSULT screen, select "ENGINE">>"Data Monitor">>"COOLAN TEMP/S".

Maintain the following condition for 5 seconds or more at idle.

COOLAN TEMP/S

70 deg.C (158 deg.F) or more

Check 1st trip DTC.

With GST

Follow the procedure "With CONSULT" above.

Is DTC P0090 detected?

YES

Proceed to Diagnosis Procedure .

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

Confirmation after repair: INSPECTION END