Condition for fault identification

Test condition:

The fault is recognized when the sensor voltage is above 4.95 V.

Potential problem source(s):

• The coolant temperature sensor's wiring harness is shorted to positive or has an open wire
• Temperature is outside measurement range
• Coolant temperature sensor defective

Terminal condition: Terminal 15

Voltage condition:

• Onboard electrical system voltage between 9 V and 16 V

Temperature condition:

• None

Time condition:

• 21 sec. after engine start

Other conditions:

• Cold engine start