Key Switch (Insert) Check

WARNING: This page is about a different car, the 2007 Nissan Versa. However, it is still accessible from the selected car via links, so may be relevant.

CHECK KEY SWITCH INPUT SIGNAL

With CONSULT-II

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-II. Refer to "DATA MONITOR ".

When key is inserted into ignition key cylinder:
KEY ON SW: ON
When key is removed from ignition key cylinder:
KEY ON SW: OFF

Fig 1: DATA MONITOR Mode In CONSULT-II Screen

Without CONSULT-II

Check voltage between BCM connector and ground.

CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	( +)	( -)	Condition	Voltage (V) (Approx.)
M18	37	Ground	Key is inserted.	Battery voltage
M18	37	Ground	Key is removed.	0

OK or NG

OK >> Key switch circuit is OK.

NG >> GO TO 2.

Fig 2: Checking Voltage Between BCM Connector And Ground

CHECK KEY SWITCH

Turn ignition switch OFF.
Disconnect key switch and key lock solenoid connector.

Check key switch.

CONNECTOR TERMINAL CONTINUITY SPECIFICATIONS

Terminals	Condition	Continuity
1 - 2	Key is inserted.	Yes
1 - 2	Key is removed.	No

OK or NG

OK >> Check the following.

10A fuse [No. 14, located in fuse block (J/B)]
Harness for open or short between key switch and fuse
Harness for open or short between BCM and key switch

NG >> Replace key switch and key lock solenoid.

Fig 3: Checking Ignition Knob Switch Key Switch And Ignition Knob Key Switch