The C1175 Code is important thing and it is necessary to get the real meaning for solving the car engine. The manufacturer gives the real and accurate meaning of the code solving the car engine. The real meaning of your car engine is manufacturer meaning and it is genuine meaning. The automobile dictionary meaning of the code is not necessary thing and it is available online. The general meaning is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 1 for Transmission. 7 for Vehicle Speed Output Circuit and 5 for Park or Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit.