LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (Lighting System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC C0277 or C0890 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

DTC C0277 06, C0277 07, C0890 03, C0890 07

  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector:B22 Brake Pedal Position Sensor
  3. Ignition - On / Vehicle - In Service Mode
  4. Verify a test lamp turns On between the test points:Low Reference circuit terminal 1 & B+
    • If the test lamp does not turn On 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X1 @ K9 Body Control Module
    3. Test for less than 2 ohms between the test points:Low Reference circuit terminal 1 @ Component harness & The other end of the circuit @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K9 Body Control Module
    • Go to next step: If the test lamp turns On 
  5. Test for 4.8 to 5.2 V between the test points:5 V Reference circuit terminal 2 & Ground
    • If less than 4.8 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 @ K9 Body Control Module
    3. Test for infinite resistance between the test points:5 V Reference circuit terminal 2 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    4. Test for less than 2 ohms between the test points:5 V Reference circuit terminal 2 @ Component harness & The other end of the circuit @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K9 Body Control Module
    • If greater than 5.2 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 @ K9 Body Control Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:5 V Reference circuit terminal 2 @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component:K9 Body Control Module
    • Go to next step: If between 4.8 and 5.2 V 
  6. Test for less than 1 V between the test points:Signal circuit terminal 3 & Ground
    • If 1 V or greater 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 @ K9 Body Control Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:Signal circuit terminal 3 @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component:K9 Body Control Module
    • Go to next step: If less than 1 V 
  7. Connect a 3 A fused jumper wire between the test points:5 V Reference circuit terminal 2 & Signal terminal 3

    Verify the scan tool parameter:Brake Applied = Active - For 2 s

    • If not the specified state 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 @ K9 Body Control Module
    3. Test for infinite resistance between the test points:Signal circuit terminal 3 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    4. Test for less than 2 ohms between the test points:Signal circuit terminal 3 @ Component harness & Signal circuitTerminal 7 @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K9 Body Control Module
    • Go to next step: If the specified state 
  8. Test or replace the component:B22 Brake Pedal Position Sensor

DTC C0277 4B

  1. Ignition - On / Vehicle - In Service Mode
  2. Calibrate the brake pedal position sensor.

    Refer to:Brake Pedal Position Sensor Calibration

  3. Operate the vehicle within the Conditions for Running the DTC.

    Verify the DTC does not set.

    • If the DTC sets 

      Replace the component:B22 Brake Pedal Position Sensor

    • Go to next step: If the DTC does not set 
  4. All OK.

DTC C0277 09

  1. Verify DTC C0277 09 is not set.
    • If the DTC is set 
    1. Replace the component:B22 Brake Pedal Position Sensor
    2. Operate the vehicle within the Conditions for Running the DTC.

      Verify the DTC does not set.

      • If the DTC sets

        Replace the component:K9 Body Control Module

      • Go to next step: If the DTC does not set
    3. All OK.
    • Go to next step: If the DTC is not set 
  2. All OK.
scientia non olet · About LEMON Manuals