The automobile meaning of the C1507 Code is found online. The general meaning of the code is found online. Do not drive the car with the problematic car engine and do not follow the false meaning for solving the car engine. You need to the real meaning of the code. The general meaning of the code is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs. 0 for IC Circuit High Voltage and 7 for Cruise Inhibit Control Circuit. The chassis problem of the engine is easy to fix.