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Home >> Chevrolet >> 2019 >> Cruze Premier, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P0016-P054F)) >> Diagnostic Information and Procedures >> DTC P0201-P0204, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P1248, P1249, P124A, P124B, P2147, P2148, P2150, or P2151 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: X2 @ K20 Engine Control Module
  3. Test for infinite resistance between the test points:
    • {Q17A Fuel Injector 1} Control circuit terminal 8 & Ground
    • {Q17B Fuel Injector 2} Control circuit terminal 5 & Ground
    • {Q17C Fuel Injector 3} Control circuit terminal 6 & Ground
    • {Q17D Fuel Injector 4} Control circuit terminal 7 & Ground
    • If less than infinite resistance 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for infinite resistance between the test points:
      • {Q17A Fuel Injector 1} Control circuit terminal 8 @ Control module harness & Ground
      • {Q17B Fuel Injector 2} Control circuit terminal 5 @ Control module harness & Ground
      • {Q17C Fuel Injector 3} Control circuit terminal 6 @ Control module harness & Ground
      • {Q17D Fuel Injector 4} Control circuit terminal 7 @ Control module harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    3. Test for infinite resistance between the test points:
      • {Q17A Fuel Injector 1} Control circuit terminal 4 @ Control module harness & Ground
      • {Q17B Fuel Injector 2} Control circuit terminal 1 @ Control module harness & Ground
      • {Q17C Fuel Injector 3} Control circuit terminal 2 @ Control module harness & Ground
      • {Q17D Fuel Injector 4} Control circuit terminal 3 @ Control module harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If infinite resistance - Replace the component: Q17 Fuel Injector
    • Go to next step: If infinite resistance 
  4. Ignition - On/Vehicle - In Service Mode
  5. Test for less than 1 V between the test points:
    • {Q17A Fuel Injector 1} Control circuit terminal 8 & Ground
    • {Q17B Fuel Injector 2} Control circuit terminal 5 & Ground
    • {Q17C Fuel Injector 3} Control circuit terminal 6 & Ground
    • {Q17D Fuel Injector 4} Control circuit terminal 7 & Ground
    • If 1 V or greater 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for less than 1 V between the test points:
      • {Q17A Fuel Injector 1} Control circuit terminal 8 @ Control module harness & Ground
      • {Q17B Fuel Injector 2} Control circuit terminal 5 @ Control module harness & Ground
      • {Q17C Fuel Injector 3} Control circuit terminal 6 @ Control module harness & Ground
      • {Q17D Fuel Injector 4} Control circuit terminal 7 @ Control module harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Repair the short to voltage on the circuit:
      • {Q17A Fuel Injector 1} Control circuit terminal 4
      • {Q17B Fuel Injector 2} Control circuit terminal 1
      • {Q17C Fuel Injector 3} Control circuit terminal 2
      • {Q17D Fuel Injector 4} Control circuit terminal 3
    • Go to next step: If less than 1 V 
  6. Ignition/Vehicle - Off
  7. Test for less than 3 ohms between the test points:
    • {Q17A Fuel Injector 1} Control circuit terminal 4 & Control circuit terminal 8
    • {Q17B Fuel Injector 2} Control circuit terminal 1 & Control circuit terminal 5
    • {Q17C Fuel Injector 3} Control circuit terminal 2 & Control circuit terminal 6
    • {Q17D Fuel Injector 4} Control circuit terminal 3 & Control circuit terminal 7
    • If 3 ohms or greater 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for less than 2 ohms between the test points:
      • {Q17A Fuel Injector 1} Control circuit terminal 4 @ Control module harness & Control circuit terminal 1 @ Component harness
      • {Q17B Fuel Injector 2} Control circuit terminal 1 @ Control module harness & Control circuit terminal 1 @ Component harness
      • {Q17C Fuel Injector 3} Control circuit terminal 2 @ Control module harness & Control circuit terminal 1 @ Component harness
      • {Q17D Fuel Injector 4} Control circuit terminal 3 @ Control module harness & Control circuit terminal 1 @ Component harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • Go to next step: If less than 2 ohms
    3. Test for less than 2 ohms between the test points:
      • {Q17A Fuel Injector 1} Control circuit terminal 8 @ Control module harness & Control circuit terminal 2 @ Component harness
      • {Q17B Fuel Injector 2} Control circuit terminal 5 @ Control module harness & Control circuit terminal 2 @ Component harness
      • {Q17C Fuel Injector 3} Control circuit terminal 6 @ Control module harness & Control circuit terminal 2 @ Component harness
      • {Q17D Fuel Injector 4} Control circuit terminal 7 @ Control module harness & Control circuit terminal 2 @ Component harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component: Q17 Fuel Injector
    • Go to next step: If less than 3 ohms 
  8. Replace the component: K20 Engine Control Module
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