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Home >> Chevrolet >> 2013 >> Sonic RS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Manual Transmission - F13-5/F15-5/F17-5 (M26)) >> Diagnostic Information and Procedures >> DTC P0806-P0808 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, disconnect the harness connector of the B25B Clutch Pedal Position Sensor.
  2. Test for less than 5 Ω between the low reference circuit terminal C (for LHD) or terminal A (for RHD) and ground:
    • If 5 Ω or greater 
    1. Disconnect the X3 harness connector at the K20 Engine Control Module.
    2. Test for less than 2 Ω in the circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K20 Engine Control Module.
    • If less than 5 Ω 
  3. Ignition ON.
  4. Test for greater than 4.8-5.2 V between the 5 V reference circuit terminal A (for LHD) or terminal C (for RHD) and ground:
    • If less than 4.8 V 
    1. Test for infinite resistance between the 5 V reference circuit and ground.
      • If less than infinite resistance

        Repair the short to ground on the circuit.

      • If infinite resistance
      1. Disconnect the X3 harness connector at the K20 Engine Control Module.
      2. Test for less than 2 Ω in the 5 V reference circuit end to end.
        • If 2 Ω or greater, repair the open/high resistance in the circuit.
        • If less than 2 Ω, replace the K20 Engine Control Module.
    • If greater than 5.2 V 
    1. Disconnect the X3 harness connector at the K20 Engine Control Module.
    2. Test for less than 0.3 V between the 5 V reference circuit terminal 38 and ground.
      • If 0.3 V or greater, repair the short to voltage on the circuit.
      • If less than 0.3 V, replace the K20 Engine Control Module.
    • If between 4.8-5.2 V 
  5. Ignition OFF.
  6. Test for less than 1 V between the signal circuit terminal B and ground.
    • If 1 V or greater 
    1. Disconnect the X3 harness connector at the K20 Engine Control Module.
    2. Test for less then 0.3 V between the signal circuit terminal 58 and ground.
      • If 0.3 V or greater, repair the short to voltage on the circuit.
      • If less than 0.3 V, replace the K20 Engine Control Module.
    • If less than 1 V 
  7. Ignition OFF, disconnect the X3 harness connector at the K20 Engine Control Module.
  8. Test for less than 2 Ω between the signal circuit terminal 58 at the K20 Engine Control Module and the signal circuit terminal B at the B25B Clutch Pedal Position Sensor.
    • If 2 Ω or greater 

      Repair the open/high resistance in the circuit.

    • If less than 2 Ω 
  9. Test for infinite resistance between the signal circuit terminal B at the B25B Clutch Pedal Position Sensor.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  10. Test or replace the B25B Clutch Pedal Position Sensor.
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