3500 4x4 Pickup L6-359 5.9L DSL Turbo (1996)
EGR Temperature Sensor: Description and Operation
EGR Engine Coolant Temperature Sensor
The content of this article reflects changes called for in TSB 26-03-96.
CIRCUIT OPERATION
The EGR engine coolant temperature sensor provides an input to the Powertrain Control Module (PCM) on circuit K2.
From circuit K2, the sensor draws voltage from the PCM. The sensor is a variable resistor. As coolant temperature changes, the resistance in the
sensor changes, causing a change in current draw.
The PCM provides ground for the sensor signal (circuit K2) on circuit K4.
