jeep Workshop Repair Guides

Jeep Workshop Service and Repair Manuals

Engine Control Module|Description|Page 548 > < Engine Control Module|Description|Page 546
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SENSOR RETURN

The Sensor Return circuits are internal to the Powertrain Control Module (PCM).

Sensor Return provides a low-noise ground reference for all engine control system sensors.

Signal Ground

SIGNAL GROUND

Signal ground provides a low noise ground to the data link connector.

Engine Control Module|Description|Page 548 > < Engine Control Module|Description|Page 546