2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 478
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
7. Let engine idle for 1 minute.
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 to 70锟紺 (158锟紽).
9. Open engine hood.
10. Select "DTC & SRT CONFIRMATION" then "SRT WORK SUPPORT" mode with CONSULT-III.
11. Rev engine between 2,000 and 3,000 rpm and hold it for 3 consecutive minutes then release the accelerator pedal completely.
12. Check the indication of "CATALYST".
Which is displayed on CONSULT-III screen?
CMPLT - GO TO 5.
INCMP - GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-II
1. Wait 5 seconds at idle.
2. Rev engine between 2,000 and 3,000 rpm and maintain it until "INCMP" of "CATALYST" changes to "CMPLT" (It will take approximately
5 minutes).
Does the indication change to "CMPLT"?
YES - GO TO 5.
NO - GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE AGAIN
1. Stop engine and cool it down to less than 2. Perform DTC CONFIRMATION PROCEDURE again. 70锟紺 (158锟紽).
- GO TO 2.
5.PERFORM DTC CONFIRMATION PROCEDURE-III
Check 1st trip DTC.
Is 1st trip DTC detected?
YES - Go to See: P Code Charts/P0420.
NO - INSPECTION END
6.PERFORM COMPONENT FUNCTION CHECK
With GST
Perform component function check. See: P Code Charts/P0420.
NOTE:
Use component function check to check the overall function of the three way catalyst 1. During this check, a
1st trip DTC might not be confirmed.
Is the inspection result normal?
YES - INSPECTION END
NO - Go to See: P Code Charts/P0420.
Component Function Check
1.PERFORM COMPONENT FUNCTION CHECK
With GST
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. Open engine hood.
8. Check the voltage between ECM harness connector terminals under the following condition.
