Hood Switch Check

WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HOOD SWITCH
Check hood switch and hood fitting condition.

OK or NG
- OK : GO TO 2.
- NG : Adjust installation of hood switch.
CHECK HOOD SWITCH INPUT SIGNAL
With CONSULT-II

Check "HOOD SW" in "DATA MONITOR" mode with CONSULT-II.

When hood is open : HOOD SW ON

When hood is closed : HOOD SW OFF

Fig 1: Identifying Scan Tool Display - Data Monitor
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between IPDM E/R harness connector E122 terminal 41 and ground.

OK or NG
- OK : Hood switch is OK.
- NG : GO TO 3.
  
  Fig 2: Identifying Voltage Between IPDM E/R Harness Connector E122 Terminal 41 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK HOOD SWITCH

Turn ignition switch OFF.
Disconnect hood switch connector.

Check continuity between hood switch terminals 1 and 2.

TERMINALS CONTINUITY CHART

Terminals	Condition	Continuity
1- 2	Pressed	No
1- 2	Released	Yes

Fig 3: Identifying Continuity Between Hood Switch Terminals 1 And 2

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

OK or NG

OK : Check the following:
- Hood switch ground circuit.
- Harness for open or short between hood switch and IPDM E/R
NG : Replace hood switch.