Powertrain Control Module (Pcm)
| Refer to COMPONENT INDEX . |
The PCM is located next to the washer solvent reservoir. The PCM is a digital computer containing a micro-controller. The PCM receives input signals from various switches and sensors that are referred to as PCM Inputs. Based on these inputs the PCM adjusts various engine and vehicle operations through devices that are referred to as PCM Outputs. The PCM uses the Controller Area Network-Chassis (CAN-C) bus to perform engine diagnostics and flash operations.
The PCM is a pre-programmed digital computer. The PCM operates the following:
- Fuel system
- Regulates ignition timing
- Air-fuel ratio
- Emission control devices
- Charging system
- Certain transmission features
- Speed control
The PCM can adapt its programming to meet changing operating conditions. It also receives input signals from various switches and sensors. Based on these inputs, the PCM regulates various engine and vehicle operations through different system components. These components are referred to as PCM Outputs.
For more information on the PCM, Refer to MODULE, POWERTRAIN CONTROL (PCM), DESCRIPTION AND OPERATION .