Diagnostic Code Index

2013 Buick Regal Turbo Premium, Standard TransSECTION Diagnostic Code Index
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.
DIAGNOSTIC CODE INDEX

DTC Description
DTC P0641  DTC P0641 5V Reference 1 Circuit
DTC P0651, P0A0C, or P0A0D  DTC P0651 5V Reference 2 Circuit
DTC P0A0C High Voltage System Interlock Circuit 1 Low Voltage
DTC P0A0D High Voltage System Interlock Circuit 1 High Voltage
DTC P0A80  DTC P0A80 Replace Hybrid Battery Pack
DTC P0AA8-P0AAA  DTC P0AA8 Hybrid Battery Voltage Isolation Sensing Performance
DTC P0AA9 Hybrid Battery Voltage Isolation Sensing Circuit 1 Low Voltage
DTC P0AAA Hybrid Battery Voltage Isolation Sensing Circuit 1 High Voltage
DTC P0ABB, P0ABC, or P0ABD  DTC P0ABB Hybrid Battery Voltage Sensor Performance
DTC P0ABC Hybrid Battery Voltage Sensor Circuit Low Voltage
DTC P0ABD Hybrid Battery Voltage Sensor Circuit High Voltage
DTC P0AC1, P0AC2, P1A07, or P1EBA  DTC P0AC1 Hybrid Battery Current Sensor Circuit Low Voltage
DTC P0AC2 Hybrid Battery Current Sensor Circuit High Voltage
DTC P1A07 Battery Energy Control Module 5 Volt Reference Circuit
DTC P1EBA Hybrid Battery Current Sensor Performance
DTC P0ADB or P0ADC  DTC P0ADB Hybrid Battery Positive Contactor Control Circuit Low Voltage
DTC P0ADC Hybrid Battery Positive Contactor Control Circuit High Voltage
DTC P0AE6 or P0AE7  DTC P0AE6 Hybrid Battery Precharge Contactor Control Circuit Low Voltage
DTC P0AE7 Hybrid Battery Precharge Contactor Control Circuit High Voltage
DTC P0AF8  DTC P0AF8 Hybrid Battery System Voltage
DTC P0AFA or P0AFB  DTC P0AFA Hybrid Battery System Voltage Low
DTC P0AFB Hybrid Battery System Voltage High
DTC P0B3B-P0BBB, P1B16-P1B2D, P1B3D, or P1B3E  DTC P0B3B Hybrid/EV Battery 1 Circuit
DTC P0B3C Hybrid/EV Battery 1 Circuit Performance
DTC P0B3D Hybrid/EV Battery 1 Circuit Low Voltage
DTC P0B3E Hybrid/EV Battery 1 Circuit High Voltage
DTC P0B40 Hybrid/EV Battery 2 Circuit
DTC P0B41 Hybrid/EV Battery 2 Circuit Performance
DTC P0B42 Hybrid/EV Battery 2 Circuit Low Voltage
DTC P0B43 Hybrid/EV Battery 2 Circuit High Voltage
DTC P0B45 Hybrid/EV Battery 3 Circuit
DTC P0B46 Hybrid/EV Battery 3 Circuit Performance
DTC P0B47 Hybrid/EV Battery 3 Circuit Low Voltage
DTC P0B48 Hybrid/EV Battery 3 Circuit High Voltage
DTC P0B4A Hybrid/EV Battery 4 Circuit
DTC P0B4B Hybrid/EV Battery 4 Circuit Performance
DTC P0B4C Hybrid/EV Battery 4 Circuit Low Voltage
DTC P0B4D Hybrid/EV Battery 4 Circuit High Voltage
DTC P0B4F Hybrid/EV Battery 5 Circuit
DTC P0B50 Hybrid/EV Battery 5 Circuit Performance
DTC P0B51 Hybrid/EV Battery 5 Circuit Low Voltage
DTC P0B52 Hybrid/EV Battery 5 Circuit High Voltage
DTC P0B54 Hybrid/EV Battery 6 Circuit
DTC P0B55 Hybrid/EV Battery 6 Circuit Performance
DTC P0B56 Hybrid/EV Battery 6 Circuit Low Voltage
DTC P0B57 Hybrid/EV Battery 6 Circuit High Voltage
DTC P0B59 Hybrid/EV Battery 7 Circuit
DTC P0B5A Hybrid/EV Battery 7 Circuit Performance
DTC P0B5B Hybrid/EV Battery 7 Circuit Low Voltage
DTC P0B5C Hybrid/EV Battery 7 Circuit High Voltage
DTC P0B5E Hybrid/EV Battery 8 Circuit
DTC P0B5F Hybrid/EV Battery 8 Circuit Performance
DTC P0B60 Hybrid/EV Battery 8 Circuit Low Voltage
DTC P0B61 Hybrid/EV Battery 8 Circuit High Voltage
DTC P0B63 Hybrid/EV Battery 9 Circuit
DTC P0B64 Hybrid/EV Battery 9 Circuit Performance
DTC P0B65 Hybrid/EV Battery 9 Circuit Low Voltage
DTC P0B66 Hybrid/EV Battery 9 Circuit High Voltage
DTC P0B68 Hybrid/EV Battery 10 Circuit
DTC P0B69 Hybrid/EV Battery 10 Circuit Performance
DTC P0B6A Hybrid/EV Battery 10 Circuit Low Voltage
DTC P0B6B Hybrid/EV Battery 10 Circuit High Voltage
DTC P0B6D Hybrid/EV Battery 11 Circuit
DTC P0B6E Hybrid/EV Battery 11 Circuit Performance
DTC P0B6F Hybrid/EV Battery 11 Circuit Low Voltage
DTC P0B70 Hybrid/EV Battery 11 Circuit High Voltage
DTC P0B72 Hybrid/EV Battery 12 Circuit
DTC P0B73 Hybrid/EV Battery 12 Circuit Performance
DTC P0B74 Hybrid/EV Battery 12 Circuit Low Voltage
DTC P0B75 Hybrid/EV Battery 12 Circuit High Voltage
DTC P0B77 Hybrid/EV Battery 13 Circuit
DTC P0B78 Hybrid/EV Battery 13 Circuit Performance
DTC P0B79 Hybrid/EV Battery 13 Circuit Low Voltage
DTC P0B7A Hybrid/EV Battery 13 Circuit High Voltage
DTC P0B7C Hybrid/EV Battery 14 Circuit
DTC P0B7D Hybrid/EV Battery 14 Circuit Performance
DTC P0B7E Hybrid/EV Battery 14 Circuit Low Voltage
DTC P0B7F Hybrid/EV Battery 14 Circuit High Voltage
DTC P0B81 Hybrid/EV Battery 15 Circuit
DTC P0B82 Hybrid/EV Battery 15 Circuit Performance
DTC P0B83 Hybrid/EV Battery 15 Circuit Low Voltage
DTC P0B84 Hybrid/EV Battery 15 Circuit High Voltage
DTC P0B86 Hybrid/EV Battery 16 Circuit
DTC P0B87 Hybrid/EV Battery 16 Circuit Performance
DTC P0B88 Hybrid/EV Battery 16 Circuit Low Voltage
DTC P0B89 Hybrid/EV Battery 16 Circuit High Voltage
DTC P0B8B Hybrid/EV Battery 17 Circuit
DTC P0B8C Hybrid/EV Battery 17 Circuit Performance
DTC P0B8D Hybrid/EV Battery 17 Circuit Low Voltage
DTC P0B8E Hybrid/EV Battery 17 Circuit High Voltage
DTC P0B90 Hybrid/EV Battery 18 Circuit
DTC P0B91 Hybrid/EV Battery 18 Circuit Performance
DTC P0B92 Hybrid/EV Battery 18 Circuit Low Voltage
DTC P0B93 Hybrid/EV Battery 18 Circuit High Voltage
DTC P0B95 Hybrid/EV Battery 19 Circuit
DTC P0B96 Hybrid/EV Battery 19 Circuit Performance
DTC P0B97 Hybrid/EV Battery 19 Circuit Low Voltage
DTC P0B98 Hybrid/EV Battery 19 Circuit High Voltage
DTC P0B9A Hybrid/EV Battery 20 Circuit
DTC P0B9B Hybrid/EV Battery 20 Circuit Performance
DTC P0B9C Hybrid/EV Battery 20 Circuit Low Voltage
DTC P0B9D Hybrid/EV Battery 20 Circuit High Voltage
DTC P0B9F Hybrid/EV Battery 21 Circuit
DTC P0BA0 Hybrid/EV Battery 21 Circuit Performance
DTC P0BA1 Hybrid/EV Battery 21 Circuit Low Voltage
DTC P0BA2 Hybrid/EV Battery 21 Circuit High Voltage
DTC P0BA4 Hybrid/EV Battery 22 Circuit
DTC P0BA5 Hybrid/EV Battery 22 Circuit Performance
DTC P0BA6 Hybrid/EV Battery 22 Circuit Low Voltage
DTC P0BA7 Hybrid/EV Battery 22 Circuit High Voltage
DTC P0BA9 Hybrid/EV Battery 23 Circuit
DTC P0BAA Hybrid/EV Battery 23 Circuit Performance
DTC P0BAB Hybrid/EV Battery 23 Circuit Low Voltage
DTC P0BAC Hybrid/EV Battery 23 Circuit High Voltage
DTC P0BAE Hybrid/EV Battery 24 Circuit
DTC P0BAF Hybrid/EV Battery 24 Circuit Performance
DTC P0BB0 Hybrid/EV Battery 24 Circuit Low Voltage
DTC P0BB1 Hybrid/EV Battery 24 Circuit High Voltage
DTC P0BB3 Hybrid/EV Battery 25 Circuit
DTC P0BB4 Hybrid/EV Battery 25 Circuit Performance
DTC P0BB5 Hybrid/EV Battery 25 Circuit Low Voltage
DTC P0BB6 Hybrid/EV Battery 25 Circuit High Voltage
DTC P0BB8 Hybrid/EV Battery 26 Circuit
DTC P0BB9 Hybrid/EV Battery 26 Circuit Performance
DTC P0BBA Hybrid/EV Battery 26 Circuit Low Voltage
DTC P0BBB Hybrid/EV Battery 26 Circuit High Voltage
DTC P1B16 Hybrid/EV Battery 27 Circuit Performance
DTC P1B17 Hybrid/EV Battery 27 Circuit Low Voltage
DTC P1B18 Hybrid/EV Battery 27 Circuit High Voltage
DTC P1B19 Hybrid/EV Battery 28 Circuit Performance
DTC P1B1A Hybrid/EV Battery 28 Circuit Low Voltage
DTC P1B1B Hybrid/EV Battery 28 Circuit High Voltage
DTC P1B1C Hybrid/EV Battery 29 Circuit Performance
DTC P1B1D Hybrid/EV Battery 29 Circuit Low Voltage
DTC P1B1E Hybrid/EV Battery 29 Circuit High Voltage
DTC P1B1F Hybrid/EV Battery 30 Circuit Performance
DTC P1B20 Hybrid/EV Battery 30 Circuit Low Voltage
DTC P1B21 Hybrid/EV Battery 30 Circuit High Voltage
DTC P1B22 Hybrid/EV Battery 31 Circuit Performance
DTC P1B23 Hybrid/EV Battery 31 Circuit Low Voltage
DTC P1B24 Hybrid/EV Battery 31 Circuit High Voltage
DTC P1B25 Hybrid/EV Battery 32 Circuit Performance
DTC P1B26 Hybrid/EV Battery 32 Circuit Low Voltage
DTC P1B27 Hybrid/EV Battery 32 Circuit High Voltage
DTC P1B28 Hybrid/EV Battery 27 Circuit
DTC P1B29 Hybrid/EV Battery 28 Circuit
DTC P1B2A Hybrid/EV Battery 29 Circuit
DTC P1B2B Hybrid/EV Battery 30 Circuit
DTC P1B2C Hybrid/EV Battery 31 Circuit
DTC P1B2D Hybrid/EV Battery 32 Circuit
DTC P1B3D Hybrid Battery Voltage Sense Low Reference 1 Circuit
DTC P1B3E Hybrid Battery Voltage Sense Low Reference 2 Circuit
DTC P0BBE  DTC P0BBE Hybrid Battery Pack Voltage
DTC P0C77 or P0C78  DTC P0C77 Hybrid Battery System Precharge Time Too Short
DTC P0C78 Hybrid Battery System Precharge Time Too Long
DTC P1A01, P1A05, P1A06, or P1A5C  DTC P1A01 Battery Energy Control Module Long Term Memory Performance
DTC P1A05 Battery Energy Control Module Random Access Memory (RAM)
DTC P1A06 Battery Energy Control Module Read Only Memory (ROM)
DTC P1A5C Battery Energy Control Module Main Processor Performance
DTC P1A0C  DTC P1A0C Battery Energy Control Module System Voltage Low
DTC P1A5D  DTC P1A5D Battery Energy Control Module 5 Volt Reference 2 Circuit
DTC P1A5E or P1A5F  DTC P1A5E Battery Energy Control Module Ignition 1 Switch Circuit Low Voltage
DTC P1A5F Battery Energy Control Module Ignition 1 Switch Circuit High Voltage
DTC P1A60  DTC P1A60 Battery Energy Control Module Ignition Accessory Switch Circuit Low Voltage
DTC P1B11  DTC P1B11 Drive Motor Control Module Hybrid AC Voltage System Isolation Lost
DTC P1B33-P1B39  DTC P1B33 Battery Energy Control Module Hybrid Battery Voltage Balance Circuit
DTC P1B34 Battery Energy Control Module Hybrid Battery Voltage Balance Processor 1 Performance
DTC P1B35 Battery Energy Control Module Hybrid Battery Voltage Balance Processor 2 Performance
DTC P1B36 Battery Energy Control Module Hybrid Battery Voltage Balance Processor 3 Performance
DTC P1B37 Battery Energy Control Module Hybrid Battery Voltage Balance Processor 4 Performance
DTC P1B38 Battery Energy Control Module Hybrid Battery Voltage Balance Processor 5 Performance
DTC P1B39 Battery Energy Control Module Hybrid Battery Voltage Balance Processor 6 Performance
DTC P1B3F or P1B40  DTC P1B3F High Voltage System Interlock Circuit 2 Low Voltage
DTC P1B40 High Voltage System Interlock Circuit 2 High Voltage
DTC P1E0C or P1E0D  DTC P1E0C Hybrid Battery Voltage Isolation Sensing Circuit 2 Low Voltage
DTC P1E0D Hybrid Battery Voltage Isolation Sensing Circuit 2 High Voltage
DTC P1E0F-P1E11  DTC P1E0F Hybrid Battery Voltage Isolation High Resolution Sensing Circuit 1 Low Voltage
DTC P1E10 Hybrid Battery Voltage Isolation High Resolution Sensing Circuit 1 High Voltage
DTC P1E11 Hybrid Battery Voltage Isolation High Resolution Sensing Circuit 1 Performance
DTC P1E12-P1E14  DTC P1E12 Hybrid Battery Voltage Isolation High Resolution Sensing Circuit 2 Low Voltage
DTC P1E13 Hybrid Battery Voltage Isolation High Resolution Sensing Circuit 2 High Voltage
DTC P1E14 Hybrid Battery Voltage Isolation High Resolution Sensing Circuit 2 Performance
DTC P1E3D  DTC P1E3D Control Module Calculated Hybrid Battery Performance
DTC P1EAA  DTC P1EAA Hybrid Battery Voltage Balance Processor Multiplexer Performance
DTC P1EAB  DTC P1EAB Battery Energy Control Module Hybrid/EV Battery Cell Overvoltage
DTC P1EAC  DTC P1EAC Hybrid/EV Battery Cell Overvoltage Signal/Circuit Performance
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.