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Check Key Switch

CHECK KEY SWITCH INPUT SIGNAL

With CONSULT-II

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

When key is inserted in ignition key cylinder
1. KEY ON SW : ON
When key is removed from ignition key cylinder
1. KEY ON SW : OFF

Fig 1: DATA MONITOR - CONSULT II Display Mode

G02362231

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

Without CONSULT-II

Check voltage between BCM connector M3 terminal 37 (B/W) and ground.

Fig 2: Checking Voltage Between BCM Connector M3 Terminal 37 (B/W) And Ground

G02362232

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

VOLTAGE SPECIFICATION

Condition of ignition key cylinder	Voltage (V) Approx.
Key is inserted	Battery voltage
Key is removed	0

OK or NG

OK : Key switch circuit is OK.
NG : GO TO 2.

CHECK KEY SWITCH
1. Disconnect key switch connector.
2. Check continuity between key switch terminals 1 and 2.
Fig 3: Connector Terminal Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Continuity Between Key Switch Terminals 1 And 2
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Check the following.
  - 15A fuse [No. 22, 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
2. NG : Replace key switch.