Diagnostic Code Index

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2007 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC B1000Β  Electronic Control Unit (ECU) Performance
DTC B1001Β  Option Configuration Error Variant Not Programmed
DTC B1016Β  VIN Not Programmed
DTC U0073Β  High Speed Communication Bus
DTC U0100-U0299Β  Lost Communication
DTC U1814Β  Powertrain High Speed Communication Enable Circuit
DTC U2099Β  High Speed Communication Enable Circuit
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:

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