2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 187
The mass air flow sensor controls the temperature of the hot wire to a certain amount. The heat generated by the hot wire is reduced as the intake
air flows around it. The greater air flow, the greater the heat loss.
Therefore, the electric current supplied to hot wire is changed to maintain the temperature of the hot wire as air flow increases. The
ECM detects the air flow by means of this current change.
DTC Logic
DTC DETECTION LOGIC
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.
Which DTC is detected?
P0102, P010C-GO TO 2.
P0103, P010D-GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0102 AND P010C
1. Start engine and wait at least 5 seconds.
2. Check DTC.
Is DTC detected?
YES - Go to See: P Code Charts/P0102.
NO - INSPECTION END
3.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103 AND P010D-I
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check DTC.
Is DTC detected?
YES - Go to See: P Code Charts/P0102.
NO - GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103 AND P010D-II
1. Start engine and wait at least 5 seconds.
2. Check DTC.
Is DTC detected?
YES - Go to See: P Code Charts/P0102.
