Key Switch (Insert) Check

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

Fig 1: CONSULT-II Display - Data Monitor

Without CONSULT-II

Check voltage between BCM connector M18 terminal 37 and ground.

CONNECTOR TERMINAL VOLTAGE CHART

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

OK or NG

OK: Key switch (insert) circuit is OK.

NG: GO TO 2.

Fig 2: Checking Voltage Between BCM Connector M18 Terminal 37 And Ground

CHECK KEY SWITCH (INSERT)

Check continuity between key switch and key lock solenoid terminals 3, 4.

TERMINAL CONTINUITY CHART

Terminals	Condition	Continuity
3 - 4	Key is inserted.	Yes
3 - 4	Key is removed.	No

OK or NG

OK: Repair or replace harness.

NG: Replace key switch.

Fig 3: Checking Continuity Between Key Switch And Key Lock Solenoid Connector Terminals 3 And 4