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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 2.0L (LSY) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P001A-P001C, P003C, P003D, P005A, P03EC-P03EE, P2B33-P2B35, P3080-P3082, P3085-P3087, P308A-P308C, P308F, P3090, P3091, or P3094-P3096 >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.

Static Test

  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector: M129 Intake Camshaft Profile Actuator
  3. Test for 3 to 5 ohms between the test points: Control terminal 1/6 & Ignition terminal 5
    • If not between 3 and 5 ohms 

      Replace the component: M129 Intake Camshaft Profile Actuator

    • Go to next step: If between 3 and 5 ohms 
  4. All OK.

Dynamic Test

  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector:
    • M129 Intake Camshaft Profile Actuator - All
    • M130 Exhaust Camshaft Profile Actuator - All
  3. NOTE:

    Test all of the following components one at a time: M129 & M130

  4. Remove the appropriate component: M129 Intake Camshaft Profile Actuator or M130 Exhaust Camshaft Profile Actuator
  5. Connect a 5 A fused jumper wire between the test points: Ignition terminal 5 & 12 V
  6. CAUTION:

    Complete the testing as quickly as possible in order to prevent overheating and damaging the component.

  7. Momentarily connect a jumper wire between the test points:
    • Control terminal 1 & Ground
    • Control terminal 6 & Ground

      Verify the component turns On and Off or the fuse does not open when connecting and disconnecting the jumper wire: M129 Intake Camshaft Profile Actuator or M130 Exhaust Camshaft Profile Actuator

    • If the component does not turn On and Off or the fuse opens 

      Replace the component: M129 Intake Camshaft Profile Actuator or M130 Exhaust Camshaft Profile Actuator

    • Go to next step: If the component turns On and Off & The fuse does not open 
  8. All OK.