Periodic maintenance
RadiatorHVAC branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the A/C auto amp. for
damage, bend and loose connection (unit
side and connector side).
2.CHECK HARNESS FOR OPEN CIRCUI ...
Performance test
Inspection
INSPECTION PROCEDURE
Connect recovery/recycling/recharging equipment (for HFC-134a) or
manifold gauge.
Start the engine, and set to the following condition.
Maintain test condition until A/C system becomes stable. (Approximately
10 minutes)
Check that test results ...
U1000 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex communication line with high data
communication speed and excellent error detection ability. Many electronic
control units are equipped on a vehicle and each contr ...