2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 331
DTC CONFIRMATION PROCEDURE
1.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.
- GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
6. Let engine idle for 2 minutes.
7. Check 1st trip DTC.
Is 1st trip DTC detected?
YES - Go to See: P Code Charts/P0138.
NO-1 - With CONSULT-III: GO TO 3.
NO-2 - With GST: GO TO 5.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
With CONSULT-III
NOTE:
For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30 锟紺 (32 to 86 锟紽).
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
6. Let engine idle for 1 minute.
7. Select "DATA MONITOR" mode with CONSULT-III.
8. Check that "COOLAN TEMP/S" indicates more than 70锟紺 (158锟紽).
If not, warm up engine and go to next step when "COOLAN TEMP/S" indication reaches 70锟紺 (158锟紽).
9. Open engine hood.
10. Select "HO2S2 (B1) P1146" (for DTC P0138) or "HO2S2 (B2) P1166" (for DTC P0158) of "HO2S2" in "DTC WORK SUPPORT" mode
with CONSULT-III.
11. Follow the instruction of CONSULT-III display.
NOTE:
It will take at most 10 minutes until "COMPLETED" is displayed.
12. Touch "SELF-DIAG RESULTS".
Which is displayed on CONSULT-III screen?
OK - INSPECTION END
NG - Go to See: P Code Charts/P0138.
CANNOT BE DIAGNOSED-GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B AGAIN
1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
2. Perform DTC confirmation procedure again.
- GO TO 3.
5.PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B
With GST
Perform component function check. See: P Code Charts/P0138.
