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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

PCM Input/Outputs

PCM Input/Outputs

Inputs - Operating Conditions Read
- Air Conditioning "ON" or "OFF"
- Engine Coolant Temperature
- Crankshaft Position
- CAM Position
- Exhaust Oxygen Content
- Electronic Ignition
- Battery Voltage
- Throttle Position
- Vehicle Speed
- Fuel Pump Voltage
- Power Steering Pressure
- Intake Air Temperature
- Mass Air Flow
- Engine Knock
- Acceleration Position
- Fuel Rail Pressure (High)
- Fuel Rail Pressure (Low)
- Air Conditioning Pressure
- Fuel Tank Pressure
- Fuel Tank Level

Outputs - Systems Controlled
- EVAP Canister Purge
- Ignition Control
- Injector Control
- Fuel Pressure Control (High/Low)
- Air Conditioning/Condenser Fan Control
- Diagnostics
- Malfunction Indicator Lamp
- Data Link Connector (DLC)
- Data Output
- VVT Control