CMP (Camshaft Position) Sensor Inspection

Reference: CMP (CAMSHAFT POSITION) SENSOR REMOVAL AND INSTALLATION 

1. Remove CMP sensor. Refer to CMP (CAMSHAFT POSITION) SENSOR REMOVAL AND INSTALLATION 
2. Check the following.
   • Check that O-ring (1) is free from damage.
   • Check that end face of sensor and signal rotor tooth are free from any metal particles and damage.
     Fig 1: Identifying CMP Sensor O-Ring

     Courtesy of SUZUKI OF AMERICA CORP.
3. Check CMP sensor as follows.

   If faulty condition is found, replace CMP sensor.

   1. Connect battery (1) and ohmmeter (3) to CMP sensor as shown in figure.
   2. Check that CMP sensor resistance varies as specified below by passing magnetic substance (iron) (2).

      If faulty condition is found, replace CMP sensor.

      NOTE: Be sure to keep approximately 1 mm (0.03 in) gap "a" between magnetic substance (iron) and end face of CMP sensor.

      CMP sensor resistance 

      Resistance varies between less than 220 Ω (ON) and infinity (OFF) 

      Fig 2: Checking Resistance Between Terminal Of CMP Sensor

      Courtesy of SUZUKI OF AMERICA CORP.