Diagnostic Procedure

WARNING: This page is about a different car, the 2006 Nissan Titan. 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.

Fig 1: Consult-II DATA MONITOR Display Screen

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

Select "LOAD SIGNAL" and check indication under the following conditions.

CONDITION REFERENCE CHART

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

OK or NG

OK: GO TO 2.

NG: GO TO 3.

CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

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

Fig 2: Consult-II DATA MONITOR Display Screen

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

CONDITION REFERENCE CHART

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

OK or NG

OK: INSPECTION END

NG: GO TO 4.

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