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HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 149 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0083-B0088CIRCUIT/SYSTEM TESTING
2013 Buick Regal Turbo Premium, Standard Trans

Circuit/System Testing

2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate B59 or B63 impact sensor, wait 120 seconds.
  2. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF, disconnect the X2 harness connector at the K36 inflatable restraint sensing and diagnostic module.
    2. Test for less than 2 Ω in the low 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 K36 inflatable restraint sensing and diagnostic module.
    • If less than 10 Ω 
  3. Test for greater than 50k Ω between the signal circuit terminal 1 and ground.
    • If 50k Ω or less 
    1. Disconnect the X2 harness connector at the K36 inflatable restraint sensing and diagnostic module.
    2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K36 inflatable restraint sensing and diagnostic module.
    • If greater than 50k Ω 
  4. Ignition ON, test for less than 1 volt between the signal circuit terminal 1 and ground.
    • If 1 V or greater 
    1. Ignition OFF, disconnect the X2 harness connector at the K36 inflatable restraint sensing and diagnostic module.
    2. Ignition ON, test for less than 1 V or greater between the signal circuit terminal 1 and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K36 inflatable restraint sensing and diagnostic module.
    • If less than 1 V 
  5. Ignition OFF, disconnect the X2 harness connector at the inflatable restraint sensing and diagnostic module.
  6. Test for less than 2 Ω between the signal circuit end to end from the B59 or B63 impact sensor terminal 1 and the K36 inflatable restraint sensing and diagnostic module terminal listed below:
    • Left front side impact sensor terminal 19 X2
    • Left front impact sensor terminal 23 X2
    • Right front side impact sensor terminal 22 X2
    • Right front impact sensor terminal 26 X2
    • Left rear side impact sensor terminal 27 X2
    • Right rear side impact sensor terminal 30 X2
    • If 2 Ω or greater 

      Repair the open/high resistance in the circuit.

    • If less than 2 Ω 
  7. Ignition OFF, reconnect all harness connectors, press in the CPA (if equipped) until an audible and/or tactile click is heard.
  8. Ignition ON, clear DTCs. Operate the vehicle within the Conditions for Running the DTC.
  9. Verify the DTC does not set.
    • If the DTC sets 

      Replace the B59 or B63 impact sensor.

    • If the DTC does not set 
  10. All OK.
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