Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Powertrain Control Module (PCM)






DESCRIPTION
The PCM is responsible for maintaining proper spark and fuel injection timing for all driving conditions. To provide optimum driveability and emissions, the PCM monitors input signals from the following components in calculating Ignition Control (IC) spark timing:




Ignition Control (IC) Module.




Engine Coolant Temperature (ECT) sensor.




Intake Air Temperature (IAT) sensor.




Mass Air Flow (MAF) sensor (1).

Transaxle Range Switch:




Transaxle Range switch.




Throttle Position (TP) Sensor




Vehicle Speed Sensor (VSS).