The general meaning of the engine C1253 Code is important thing and it is found as C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 5 for TP Sensor Learn Not Complete and 3 for Transmission Control Module Reprogrammable Memory. The engine code C1253 is a kind of chassis problem. The car engine system services especially established hydraulic for the engine C1253 code intake and finish valves. The lifters can be distorted by unlocking an inner locking pin. The locking pin is detached using solenoids to modify oil compression fed into the lifter.