The engine C1735 Code is necessary to know and you will get the general meaning from the online. The general meaning of the engine code is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 7 for Auxiliary Emission Controls. 3 for Cruise Control Servo Indicates Low and 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. The engine system, in conjunction with the engine control module (ECM) or powertrain control module (PCM), starts the engine C1735 code solenoid valve to regulate the oil compression to the engine mechanism that is connected in the valve system to change regulator timing between Low and High.