Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.

BCM branch line circuit
M&A branch line circuitLoose fuel cap warning
The LOOSE FUEL CAP warning appears in the
vehicle information display when the fuel-filler
cap is not tightened correctly after the vehicle has
been refueled. It may take a few driving trips for
the message to be displayed. To turn off the
warning, perform the following:
1. Remove and inst ...
Refrigerant pressure sensor
Description
The refrigerant pressure sensor is installed at the condenser of the air
conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to
voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Compo ...
Can communication system
System 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 onto each vehicle, a ...