Diagnostic Code Index

2008 Pontiac Grand Prix BaseSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC B0159  Outside Air Temperature Sensor Circuit Range/Performance
DTC B0164  Passenger Compartment Temperature Sensor Circuit Range/Performance
DTC B0174, B0179, B0510, or B0515  air temperature sensor
DTC B0183 or B0188  sunload sensor
DTC B0229, B0414, B0424, or B3770  actuator problem
DTC B0263, B0268, B0408, or B0418  actuator problem
DTC B1375  Device Ignition 3 Circuit
DTC P0530  Air Conditioning Refrigerant Pressure Sensor Circuit
RENDER: 1.0x

NO RELATED

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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.