DTC Detection Logic

WARNING: This page is about a different car, the 2019 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When IPDM E/R power supply voltage is low (Approx. 7 - 8 V for about 1 second), the DTC B210C may be detected.

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC detecting condition
B210C	STR CONT RLY OFF CIRC (Starter control relay off circuit)	Diagnosis condition	Ignition switch ON
		Signal (terminal)	P/N position signal CAN communication signal
		Threshold	When comparing the following items, IPDM E/R detects that starter control relay is stuck in the OFF position for 1 second or more. Starter control relay signal (CAN) from BCM Starter relay status signal (CAN) from BCM Starter control relay and starter relay status signal (IPDM E/R input) Starter control relay control signal (IPDM E/R output)
		Diagnosis delay time	1 second or more