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 circuitCompass
Wiring Diagram - WITH HOMELINK UNIVERSAL TRANSCEIVER
Wiring Diagram - WITHOUT HOMELINK UNIVERSAL TRANSCEIVER
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Vehicle identification number (VIN) plate
The vehicle identification number (VIN) plate is
attached as shown. This number is the identification
for your vehicle and is used in the vehicle
registration.
Vehicle identification number (chassis number)
The vehicle identification number is located as
shown.
Engine serial number
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Automatic air conditioner system
System Diagram
CONTROL SYSTEM
The control system consists of input sensors, switches, the A/C auto amp.
(microcomputer) and outputs. The
relationship of these components is as shown in the figure below:
System Description
CONTROL OPERATION
Display
The operation status of the HVAC system ...