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Coolant Temperature Sensor Replacement

Fig 1: Coolant Temperature Sensor
GM2375964Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
WARNING:

Before conducting any repair to this high voltage cooling system, it is necessary to determine/verify whether no high-voltage system faults exist. If high-voltage faults exist, follow published DTC diagnostics/repair procedures prior to performing any cooling system repairs. Failure to correct High Voltage Faults before working on the high voltage cooling system could result in personal injury or death.

Preliminary Procedures

  1. Turn Vehicle Power Off and remove all keyless entry transmitters from the vehicle and secure in a place outside the vehicle.
  2. Partially drain the coolant just below the level of the coolant temperature sensor. Refer to Drive Motor Generator Power Inverter Module Cooling System Draining and Filling .
  3. Remove the front fascia. Refer to Front Bumper Fascia Removal and Installation .
  4. Disconnect the electrical connector from the coolant temperature sensor.
1 Coolant Temperature Sensor Retaining Clip
2 Coolant Temperature Sensor
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