Diagnosis Flow

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WARNING INDICATOR ILLUMINATION
1. Turn ignition switch ON.
2. Make sure warning indicators (such as malfunction indicator lamp and oil pressure low/coolant temperature high warning indicator) illuminate.
Do warning indicators illuminate?
- YES: GO TO 2.
- NO: Check ignition power supply system of combination meter. Refer to "POWER SUPPLY AND GROUND CIRCUIT INSPECTION ".
CHECK SELF-DIAGNOSIS OPERATION OF COMBINATION METER
Perform combination meter self-diagnosis. Refer to "SELF-DIAGNOSIS FUNCTION ".

Does self-diagnosis function operate?
- YES: GO TO 3.
- NO: Check combination meter power supply and ground circuit. Refer to "POWER SUPPLY AND GROUND CIRCUIT INSPECTION ".
CHECK ODOMETER OPERATION
Check segment display status of odometer.

Is the display normal?
- YES: GO TO 4.
- NO: Replace the combination meter. Refer to "COMBINATION METER ".
Fig 1: Identifying Segment Display Status Of Odometer
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK COMBINATION METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.

OK or NG
- OK: Go to "SYMPTOM CHART ".
- NG: Replace the combination meter. Refer to "COMBINATION METER ".
Fig 2: Identifying Speedometer And Tachometer
Courtesy of NISSAN MOTOR CO., U.S.A.