Condition for fault identification

Test condition:

The fault is recognized when the specified and actual rotation speeds of the electric water pump fail to match.

Potential problem source(s):

• Air in the cooling system
• Defect in wiring harness to water pump
• Defective water pump

Terminal condition: none

Voltage condition:

• Onboard electrical system voltage between 9 V and 16 V

Temperature condition:

• Engine warmed to normal temp, above 80 °C

Time condition:

• None

Other conditions:

• Engine on
• No BSD fault