DIESEL CONTROL SYSTEM
Fig.1) Data at idle and aircon "OFF", Aircon pressure sensor output voltage is 1300mV.
TERMINAL AND CONNECTOR INSPECTION
Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various prob-
Perform checking procedure as follows.
Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.
Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking
Disconnect the pin which requires checking at mail connector and insert it to the terminal at female connector for
Is the problem found?
▶ Repair the trouble causing part and go to "Verification of Vehicle Repair".
▶ Go to "Power Circuit Inspection".
POWER CIRCUIT INSPECTION
IG KEY "OFF", ENGINE "OFF".
Disconnect A/C pressure transducer connector.
IG KEY "ON".
Measure the voltage of A/C pressure transducer terminal 3.
Specification : 4.8V~5.1V