Thursday, February 6, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 268

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 268



3. Check the voltage between A/F sensor 1 harness connector and ground.



Is the inspection result normal?



YES - GO TO 4.



NO - GO TO 3.



3.DETECT MALFUNCTIONING PART



Check the following.



- Harness connectors E12, F3



- IPDM E/R harness connector E7



- 15 A fuse (No. 85)



- Harness for open or short between A/F sensor 1 and fuse



- Repair or replace harness or connectors.



4.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT



1. Turn ignition switch OFF.



2. Disconnect ECM harness connector.



3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.



4. Check the continuity between A/F sensor 1 harness connector or ECM harness connector and ground.



5. Also check harness for short to power.



Is the inspection result normal?



YES - GO TO 5.



NO - Repair open circuit, short to ground or short to power in harness or connectors.



5.CHECK INTERMITTENT INCIDENT