Vehicle Speed Signal Inspection

Symptom:

• Improper speedometer and odo/trip meter indication.
• Display VEHICLE SPEED CIRC [B2205] at the result of self-diagnosis for combination meter.

WITH ABS 

1. CHECK COMBINATION METER INPUT SIGNAL
   1. Start engine and select "METER/M&A" on CONSULT-III.
   2. Using "SPEED METER" on "DATA MONITOR", compare the value of "DATA MONITOR" with speedometer pointer of combination meter.

      OK or NG 

      OK: Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to "CONSULT-III FUNCTION (ABS) ".

      NG: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".

WITHOUT ABS OR CVT 

1. CHECK VEHICLE SPEED SENSOR CIRCUITS
   1. Remove vehicle speed sensor.
   2. Turn ignition switch ON.
   3. Rotate vehicle speed sensor while checking voltage between combination meter harness connector M24 terminals 6 and 7.
      TERMINAL VOLTAGE REFERENCE
      
      

      Terminals				Voltage (Approx.)
      (+)		(-)
      Connector	Terminal	Connector	Terminal
      M24	7	M24	6	0.5

      Fig 1: Checking Voltage Between Combination Meter Harness Connector M24 Terminals 6 And 7

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

      OK or NG 

      OK: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".

      NG: GO TO 2.

2. CHECK VEHICLE SPEED SENSOR
   1. Turn ignition switch OFF.
   2. Disconnect vehicle speed sensor connector.
   3. Check resistance between vehicle speed sensor terminals 1 and 2.
      TERMINAL RESISTANCE REFERENCE
      
      

      Terminals				Resistance value (Approx.)
      (+)		(-)
      Component	Terminal	Component	Terminal
      Vehicle speed sensor	1	Vehicle speed sensor	2	250Ω

      Fig 2: Checking Resistance Between Vehicle Speed Sensor Terminals 1 And 2

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

      OK or NG 

      OK: Check harness or connector between combination meter and vehicle speed sensor.

      NG: Replace vehicle speed sensor.

WITH CVT, WITHOUT ABS 

1. CHECK COMBINATION METER INPUT SIGNAL
   1. Start engine and select "METER/M&A" on CONSULT-III.
   2. Using "SPEED METER" on "DATA MONITOR", compare the value of "DATA MONITOR" with speedometer pointer of combination meter.

      OK or NG 

      OK: Perform TCM self-diagnosis. Refer to "CONSULT-III FUNCTION (TRANSMISSION) ".

      NG: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".