2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 288
Diagnosis Procedure
1.INSPECTION START
Confirm the detected malfunction (A or B). See: P Code Charts/P0138.
Which malfunction is detected?
A - GO TO 2
B - GO TO 9.
2.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component
Tests and General Diagnostics/Power Supply and Ground Circuit.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace ground connections.
3.CHECK HEATED OXYGEN SENSOR 2 (HO2S2) CONNECTOR FOR WATER
1. Disconnect HO2S2 harness connector.
2. Check that water is not inside connectors.
Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness or connectors.
4.CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Disconnect HO2S2 harness connector.
