Key Switch (insert) Check

With CONSULT-III

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-III. Refer to "CONSULT-III FUNCTION (BCM) ".

• When key is inserted to ignition key cylinder:

KEY ON SW : ON 

• When key is removed from ignition key cylinder:

  KEY ON SW : OFF 

  Without CONSULT-III

  Check voltage between BCM connector M18 terminal 37 and ground.

  VOLTAGE REFERENCE CHART
  
  

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

  Fig 1: Checking Voltage Between BCM Connector M18 Terminal 37 And Ground

  

OK or NG 

OK: Key switch (insert) circuit is OK.

NG: GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect key switch.
3. Check continuity between key switch terminals 1, 2.
   CONTINUITY REFERENCE CHART
   
   

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

OK or NG 

OK: Repair or replace harness.

NG: Replace key switch.

Fig 2: Checking Continuity Between Key Switch Terminals 1, 2