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Engine Coolant Temperature Sensor
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Coolant Temperature Sensor Testing
Coolant Temperature Sensor Testing
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Check status on DISplus status pages (0 - 5volts) Ensure that voltage changes and does not remain constant at 0 or 5 volts
Check Sensor Resistance
Perform TEST PLAN
Fig 1: Checking NTC Type Engine Coolant Temp Sensor
Courtesy of BMW OF NORTH AMERICA, INC.
Courtesy of BMW OF NORTH AMERICA, INC.