Diagnosis Flow

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check Warning Lamp Illumination
Turn ignition switch ON.

Do warning lamps (such as malfunction indicator lamp and oil pressure warning lamp) illuminate?
1. YES: Go to 2.
2. NO: Check ignition power supply system of combination meter. Refer to POWER SUPPLY AND GROUND CIRCUIT INSPECTION .
Check Self-Diagnosis Operation
Perform combination meter self-diagnosis. Refer to SELF-DIAGNOSIS FUNCTION .

Does self-diagnosis function operate?
1. YES: Go to 3.
2. NO: Check battery power supply of combination meter and ground system. Refer to POWER SUPPLY AND GROUND CIRCUIT INSPECTION .
Check ODO/Trip Meter Operation
Check segment display status of ODO/trip meter. Refer to SELF-DIAGNOSIS FUNCTION .

Fig 1: Checking ODO/Trip Meter Display
Courtesy of NISSAN MOTOR CO., U.S.A.

Is the display normal?
1. YES: Go to 4.
2. NO: Replace combination meter.

Check Fuel Warning Lamp Illumination Confirmation

During fuel warning lamp check, confirm illumination of fuel warning lamp.

FUEL WARNING LAMP REFERENCE CHART

Condition Of ODO/Trip Meter Switch	Fuel Warning Lamp
Pushed	Does Not Illuminate
Released	Illuminates

OK or NG

OK: Go to 5.
NG: Replace combination meter.

Check Combination Meter Circuit
Check indication of each meter/gauge in self-diagnosis mode. Refer to SELF-DIAGNOSIS FUNCTION .

OK or NG
1. OK: Go to diagnosis results. Refer to DIAGNOSIS RESULTS .
2. NG: Replace combination meter.