saturn Workshop Repair Guides

Saturn Workshop Service and Repair Manuals

Sensors and Switches - Transmission and Drivetrain > < Master Enable Relay <--> [Transmission Control System Relay, A/T]|Locations|Page 4117
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Master Enable Relay: Description and Operation

PURPOSE

The master enable relay (also called "A/TRANS") provides power to the transmission actuator solenoids.

OPERATION

The master enable relay (A/Trans relay) is grounded and is provided by power when the ignition switch is turned on. This energizes the relay
allowing power to flow to the five actuator solenoids and to supply a feedback signal to the PCM.

LOCATION

The master enable relay is located in the underhood junction block.

Sensors and Switches - Transmission and Drivetrain > < Master Enable Relay <--> [Transmission Control System Relay, A/T]|Locations|Page 4117