Diagnostic Procedure 2 (Key Switch Insert Signal Check)

CHECK KEY SWITCH INPUT SIGNAL

Check voltage between time control unit terminal 4 and ground.

CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Terminals			Condition of key switch
(+)		(-)	Key inserted	Key removed
Connector	Terminal (Wire color)	(-)	Key inserted	Key removed
M40	4(L/W)	Ground	Battery voltage	0V

OK or NG

OK: Key switch is OK.

NG: GO TO 2.

Fig 1: Checking Voltage Between Time Control Unit Terminal 4 & Ground

G04195469

Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK KEY SWITCH
Check continuity between terminals 1 and 2.

Fig 2: Checking Continuity Between Terminals 1 And 2
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Check the following.
- 10A fuse [No. 12, located in fuse block (J/B)]
- Harness for open or short between key switch and fuse
- Harness for open or short between time control unit and key switch
NG: Replace key switch.