Diesel Data: Automotive Repair

Component Inspection





Component Inspection

1. Check WATER TEMP Sensor
(1) Ignition "OFF".
(2) Disconnect water temp. sensor.
(3) Measure resistance between terminal "1" and "2" of water temp. sensor.

Specification : Refer the specifications in fig 3)








(4) Is the measured resistance within specifications in fig 3) ? (tolerance limits ± 3%)





2. Check A/C Control Unit
(1) Engine "ON".
(2) Disconnect water temp. sensor.
(3) Measure Voltage between terminal "7" of A/C Control Unit and chassis ground

Specification : Approx. 5V




(4) Is the measured voltage within specifications ?