Ricky diesel pickup truck reported p064 1 1 1 fault code.

Computer or auxiliary output circuit problems.

P064 1 Fault code related knowledge:.

1.The position and function of PCM in the car: a). The PCM is installed behind the front bumper. The function of PCM is to control the adjustment of fuel supply, gas distribution (electronic throttle), fuel injection and ignition timing and intake pressure through complex calculation, and determine the compensation control coefficient of the engine according to temperature, load, knock and combustion conditions.

2. The type, structural principle and influence of PCM: PCM includes two parts: input and output. Only for the current domestic emission regulations, the input needs include engine speed, intake manifold pressure (or mass air flow), throttle position, coolant temperature, intake air temperature, oxygen sensor, battery voltage, etc. Outputs include fuel injector, ignition coil (or module), idle stepping motor, fuel pump relay, self-diagnosis interface, etc.