2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 80
If this DTC (Diagnostic Trouble Code) is displayed, replace the PDU.
B2560
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
B2560 START POW SUP CIRC
DIAGNOSIS DESCRIPTION
B2560 starter power supply system monitors the power supply condition to the starter motor relay and the starter motor relay condition in IPDM
E/R. If it detects the starter motor relay ON condition in IPDM E/R without the "Engine start" request from the Intelligent Key unit, it judges that
it is the malfunction and displays the DTC
(Diagnostic Trouble Diagnosis).
TERMINALS AND REFERENCE VALUE
Intelligent Key Unit
PDU (Power Distribution Unit)
SELF-DIAGNOSTIC LOGIC
DIAGNOSTIC PROCEDURE
1.CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and power distribution unit connector.
3. Check continuity between Intelligent Key unit connector and power distribution unit connector.
