2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 79
4.CHECK TCM SIGNAL
Check Intelligent Key unit connector and ground.
OK or NG
OK - Check the condition of harness and connector. If it is
OK, check the self-diagnosis results using CONSULT-III again.
NG - GO TO 5.
5.CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and TCM connector.
3. Check continuity between Intelligent Key unit connector and TCM connector.
4. Check continuity between Intelligent Key unit connector and ground.
OK or NG
OK - Replace TCM.
NG - Repair or replace harness.
B2559
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
B2559 PDU
DIAGNOSIS DESCRIPTION
B2559 PDU system that is Intelligent Key unit judges NG by self-detecting the PDU (Power Distribution Unit) internal malfunction.
