Vehicle Speed Signal Inspection

1. Disconnect combination meter connector and unified meter and A/C amp. connector.
2. Check continuity between combination meter harness connector M24 terminal 20 (BR) and unified meter and A/C amp. harness connector M50 terminal 26 (G).

   Continuity should exist. 

3. Check continuity between combination meter harness connector M24 terminal 20 (BR) and ground.

Continuity should not exist. 

Fig 1: Checking Continuity Between Combination Meter And Unified Meter & A/C Amp

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

OK or NG

1. OK: GO TO 2.
2. NG: Repair harness or connector.

1. Connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector M24 terminal 20 (BR) and ground.

Battery voltage should exist. 

OK or NG

1. OK: GO TO 3.
2. NG: Replace combination meter, refer to "REMOVAL AND INSTALLATION OF COMBINATION METER  ".

Fig 2: Checking Voltage Of Combination Meter

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

1. Turn ignition switch OFF.
2. Connect unified meter and A/C amp. connector.
3. Check voltage signal between combination meter harness connector M24 terminal 20 (BR) and ground with simple oscilloscope of CONSULT-II.
   Fig 3: Checking Unified Meter And A/C Amp. Output Signal

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

OK or NG

1. OK: Replace the combination meter.
2. NG: GO TO 4.

Perform the ABS actuator and electric unit (control unit) self-diagnosis.

• With traction control but without VDC system, refer to TROUBLE DIAGNOSIS
• Without traction control system, refer to TROUBLE DIAGNOSIS .
• With VDC system, refer to TROUBLE DIAGNOSIS .

OK or NG

1. OK: Replace the unified meter and A/C amp. Refer to REMOVAL AND INSTALLATION OF UNIFIED METER AND .
2. NG: Check the applicable parts.