Shadow V6-181 3.0L SOHC VIN 3 FI (1993)
Powertrain Control Module: Description and Operation
General Operation
INPUT OPERATION
The PCM determines current engine operating conditions by interpreting inputs from various sensors and switches.
Sensor Inputs
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Engine Coolant Temperature (ECT) Sensor
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Manifold Absolute Pressure (MAP) Sensor
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Throttle Position Sensor (TPS)
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Heated Oxygen Sensor (O2S)
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Vehicle Speed Sensor (VSS)
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Distributor (Hall Effect) Pick-up
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Throttle Body Temperature Sensor
Other Inputs
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A/C Request
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Brake Switch
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Park/Neutral Switch
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Speed Control System Controls
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Self Test Input (STI)
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Battery Voltage (B+)
OUTPUT OPERATION
The PCM then actuates various output devices to achieve the best compromise between power, fuel consumption, and emissions.
Outputs
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Air Conditioning Clutch (ACC) Relay
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Automatic Shut Down (ASD) And Fuel Pump Relays