Diagnostic Procedure

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

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I

Turn ignition switch ON.
Connect CONSULT-II and select "DATA MONITOR" mode.
Select "LOAD SIGNAL" and check indication under the following conditions.

INDICATION CONDITION

Condition	Indication
Rear window defogger switch: ON	ON
Rear window defogger switch: OFF	OFF

OK or NG

OK : GO TO 2.

NG : GO TO 4.

Fig 1: Consult-II DATA MONITOR Display Screen

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

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II

Check "LOAD SIGNAL" indication under the following conditions.

INDICATION CONDITION

Condition	Indication
Lighting switch: ON at 2nd position	ON
Lighting switch: OFF	OFF

OK or NG

OK : GO TO 3.

NG : GO TO 5.

Fig 2: Consult-II DATA MONITOR Display Screen

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

CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

Select "HEATER FAN SW" and check indication under the following conditions.

INDICATION CONDITION

Condition	Indication
Heater fan control switch: ON	ON
Heater fan control switch: OFF	OFF

OK or NG

OK : INSPECTION END

NG : GO TO 6.

Fig 3: CONSULT-II Display - Data Monitor Screen

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

CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to "REAR WINDOW DEFOGGER ".

: INSPECTION END
CHECK HEADLAMP SYSTEM
Refer to "HEADLAMP (FOR USA) "or "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM- ".

: INSPECTION END
CHECK HEATER FAN CONTROL SYSTEM
Refer to "TROUBLE DIAGNOSIS ".

: INSPECTION END