Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
- Models with color display: HAC-60, "A/C AUTO AMP. : Diagnosis Procedure" - Models with monochrome display: HAC-165, "A/C AUTO AMP. : Diagnosis Procedure"
U1300 AV comm circuit
Description
U1300 is indicated when malfunction occurs in communication signal of multi
AV system. Indicated simultaneously,
without fail, with the malfunction of control units connected to AV control unit
with communication line.
Determine the possible malfunction cause from the table bel ...
Vehicle load capacity
Do not exceed the load limit of your vehicle
shown as "The combined weight of
occupants and cargo" on the Tire and
Loading Information label. Do not exceed
the number of occupants shown as
"Seating Capacity" on the Tire and Loading
Information label.
To get "the combined weight of occupants ...
B terminal circuit
Description
"B" terminal circuit supplies power to charge the battery and operate the
vehicle's electrical system.
Diagnosis Procedure
1.CHECK "B" TERMINAL CONNECTION
Turn ignition switch OFF.
Check if "B" terminal is clean and tight
2.CHECK "B" TERMINAL CIRCUIT
Check voltage between ...