Diagnosis Flow

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WARNING LAMP ILLUMINATION
1. Turn ignition switch ON.
2. Check that warning lamps (such as MIL and oil pressure warning lamp) illuminate.
Do warning lamps illuminate?
1. YES : GO TO 2.
2. NO : Check ignition power supply system of combination meter. Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK ".
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 CHECK ".
CHECK ODO/TRIP METER OPERATION
Check segment display status of odo/trip meter.

Fig 1: Checking Odo/Trip Meter Segment Display Status
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
During fuel warning lamp check, confirm illumination of fuel warning lamp.

Fig 2: Fuel Warning Lamp Illumination Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 5.
2. NG >>Replace combination meter.
CHECK METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.

OK or NG
1. OK : Go to diagnosis results. Refer to "DIAGNOSIS RESULTS ".
2. NG : Replace combination meter.
Fig 3: Checking Each Meter/Gauge Indication
Courtesy of NISSAN MOTOR CO., U.S.A.