DTC Descriptors
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
DTC P2177 Fuel Trim System Lean at Cruise or Accel Bank 1
DTC P2179 Fuel Trim System Lean at Cruise or Accel Bank 2
DTC P2187 Fuel Trim System Lean at Idle Bank 1
DTC P2189 Fuel Trim System Lean at Idle Bank 2