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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Supplemental Restraint System) >> Diagnostic Information and Procedures >> Airbag Indicator Malfunction (Passenger) >> 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.
    NOTE:

    It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the appropriate electrical connector:A98 Front Overhead Console Assembly
  3. Test for less than 10 ohms between the test points:Ground circuit terminal 5 & Ground
    • If 10 ohms or greater 
    1. Test for less than 2 ohms between the test points:Ground circuit terminal @ Component harness & The other end of the circuit
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Repair the open/high resistance in the ground connection.
    • Go to next step: If less than 10 ohms 
  4. Ignition - On / Vehicle - In Service Mode
  5. Perform the appropriate scan tool control function:Passenger Air Bag Off Indicator - Off

    Test for less than 5 V between the test points:Control circuit terminal 11 & Ground

    • If 5 V or greater 
    1. Ignition/Vehicle & All vehicle systems - Off
    2. Disconnect the electrical connector:K36 Inflatable Restraint Sensing and Diagnostic Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:Control circuit terminal @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component:K36 Inflatable Restraint Sensing and Diagnostic Module
    • Go to next step: If less than 5 V 
  6. Perform the appropriate scan tool control function:Passenger Air Bag Off Indicator - On

    Test for greater than 4 V between the test points:Control circuit terminal 11 & Ground

    • If 4 V or less 
    1. Ignition/Vehicle & All vehicle systems - Off
    2. Disconnect the electrical connector:K36 Inflatable Restraint Sensing and Diagnostic Module
    3. Test for infinite resistance between the test points:Control circuit terminal @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
    4. Test for less than 2 ohms between the test points:Control circuit terminal @ Component harness & Control circuit terminal @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K36 Inflatable Restraint Sensing and Diagnostic Module
    • Go to next step: If greater than 4 V 
  7. Perform the appropriate scan tool control function:Passenger Air Bag On Indicator - Off

    Test for less than 5 V between the test points:Control circuit terminal 12 & Ground

    • If 5 V or greater 
    1. Ignition/Vehicle & All vehicle systems - Off
    2. Disconnect the electrical connector:K36 Inflatable Restraint Sensing and Diagnostic Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:Control circuit terminal @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component:K36 Inflatable Restraint Sensing and Diagnostic Module
    • Go to next step: If less than 5 V 
  8. Perform the appropriate scan tool control function:Passenger Air Bag On Indicator - On

    Test for greater than 4 V between the test points:Control circuit terminal 12 & Ground

    • If 4 V or less 
    1. Ignition/Vehicle & All vehicle systems - Off
    2. Disconnect the electrical connector:K36 Inflatable Restraint Sensing and Diagnostic Module
    3. Test for infinite resistance between the test points:Control circuit terminal @ 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:Control circuit terminal @ Component harness & Control circuit terminal @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K36 Inflatable Restraint Sensing and Diagnostic Module
    • Go to next step: If greater than 4 V 
  9. Replace the component:A98 Front Overhead Console Assembly
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