Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSATURN1993SC L4-1.9L DOHC VIN 7REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLECONTROL MODULEDESCRIPTION AND OPERATIONPOWERTRAIN CONTROL MODULE (PCM) INPUTS
1993 Saturn SC L4-1.9L DOHC VIN 7
Powertrain Control Module (PCM) Inputs
1993 Saturn SC L4-1.9L DOHC VIN 7SECTION Powertrain Control Module (PCM) Inputs
PURPOSE
The Engine Controller (EC) located in the powertrain control module (PCM) shares two signals with the transaxle controller (TC). These two signals are the vehicle speed signal (received from the vehicle speed sensor), and an ignition voltage signal. The vehicle speed signal is used by the transaxle control module (PCM/TC) to determine vehicle speed for transaxle shifting. The ignition voltage signal is used as the Power-up signal to activate the transaxle control module.
LOCATION
The Engine Controller (EC) located in the Powertrain Control Module (PCM).
The Engine Controller (EC) located in the powertrain control module (PCM) shares two signals with the transaxle controller (TC). These two signals are the vehicle speed signal (received from the vehicle speed sensor), and an ignition voltage signal. The vehicle speed signal is used by the transaxle control module (PCM/TC) to determine vehicle speed for transaxle shifting. The ignition voltage signal is used as the Power-up signal to activate the transaxle control module.
LOCATION
The Engine Controller (EC) located in the Powertrain Control Module (PCM).
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.