Please note that this manual applies to all models explains and all equipment, including options. Therefore, you may find some explanations for equipment not installed on your vehicle.
All specifications provided in this manual are current at the time of printing.
However, because of the Toyota policy of continual product improvement, we reserve the right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ from your vehicle in terms of equipment.
Noise from under vehicle after turning off the engineTerminals Of Ecu
TERMINALS OF ECU
1. AIR CONDITIONING AMPLIFIER ASSEMBLY
HINT:
Check from the rear of the connector while it is connected to the air conditioning
amplifier assembly.
Terminal No.
(Symbol)
Wiring Color
Terminal Description
Condition
Spe ...
Steering Pad Switch Circuit
DESCRIPTION
This circuit sends an operation signal from the steering pad switch assembly
to the radio and display receiver assembly.
If there is an open in the circuit, the audio system cannot be operated using
the steering pad switch assembly.
If there is a short in the circuit, the same con ...
Sound Quality is Bad Only when CD is Played (Volume is Too Low)
PROCEDURE
1.
REPLACE CD AND RECHECK
(a) Replace the CD with a known good one and recheck.
(1) Check if the same malfunction occurs again.
OK:
Malfunction disappears.
OK
END
NG
REPLACE NAVIGATION RECEIVER ASSEMBLY ...