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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 2.0L (LUZ) Diesel - DTC P0016 To DTC P0406) >> Diagnostic Information and Procedures >> DTC P0335 or P0336: Crankshaft Position Sensor >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B26 Crankshaft Position Sensor, ignition ON.
  2. Test for 2-3 V between the HI signal circuit terminal 1 and ground.
    • If less than 2 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K20 Engine Control Module.
    2. Test for infinite resistance between the HI signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 Ω in the HI signal 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 3 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K20 Engine Control Module, ignition ON.
    2. Test for less than 1 V between the HI signal circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K20 Engine Control Module.
    • If between 2-3 V 
  3. Test for 2-3 V between the LO signal circuit terminal 2 and ground.
    • If less than 2 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K20 Engine Control Module.
    2. Test for infinite resistance between the LO signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 Ω in the LO signal 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 3 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K20 Engine Control Module, ignition ON.
    2. Test for less than 1 V between the LO signal circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K20 Engine Control Module.
    • If between 2-3 V 
  4. Ignition OFF, connect 3 A fused jumper wires, one to the HI signal circuit terminal 1 and one to the LO signal circuit terminal 2, ignition ON.
  5. Verify the scan tool Crankshaft Position Sensor Active Counter parameter increments while rapidly tapping the ends of the fused jumpers together.
    • If the counter does not increment 

      Replace the K20 Engine Control Module.

    • If the counter increments 
  6. Verify DTC P0336 is not set.
    • If the DTC is set 

      Inspect for the conditions listed below:

    • Excessive play or looseness of the B26 Crankshaft Position Sensor or the reluctor wheel
    • Improper installation of the B26 Crankshaft Position Sensor
    • Foreign material passing between the B26 Crankshaft Position Sensor and the reluctor wheel
    • Damaged reluctor wheel
    • Excessive air gap between the B26 Crankshaft Position Sensor and the reluctor wheel
    • Engine oil for debris
    • Incorrect crankshaft to camshaft timing
    • Timing belt, tensioner and gears for wear or damage
      • If any of the conditions above are found, repair as necessary.
      • If all components test normal, test or replace the B26 Crankshaft Position Sensor.
    • If the DTC is not set 
  7. Test or replace the B26 Crankshaft Position Sensor.
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