Condition for fault identification

Test condition:

The fault is recognized when the coolant temperature is 18°C above the average of several temperatures at cold start.

Potential problem source(s):

• Engine block heater or auxiliary heater may be installed
• Defect in wiring harness between DME and sensor
• Sensor defective
• Defective DME

Terminal condition: none

Voltage condition:

• Onboard electrical system voltage between 9 V and 16 V

Temperature condition:

• None

Time condition:

• 21 sec. after engine start

Other conditions:

• None