System Diagram
System Description
Fan speed is automatically controlled by the temperature setting, ambient temperature, in-vehicle temperature, intake temperature, amount of sunload and air mix door position.
By pressing the AUTO switch, the blower motor starts to gradually increase airflow volume.
When engine coolant temperature is low, the blower motor operation is delayed to prevent cool air from flowing.
SYSTEM OPERATION
System Operation
Normal Automatic Airflow Control
Fan Speed Control Specification
Starting Airflow Control
Starting Fan Speed Control
Start-up from COLD SOAK Condition (Automatic mode) In cold start-up condition where the engine coolant temperature is below 56C (133F), the blower does not operate for a short period of time (up to 150 seconds). The exact start delay time varies depending on the ambient temperature and engine coolant temperature.
In the most extreme case (very low ambient temperature) the blower start delay is 150 seconds, as described above. After this delay, the blower will operate at low speed until the engine coolant temperature rises above 56C (133F), and then the fan speed increases to the objective speed.
Start-up from usual or HOT SOAK Condition (Automatic mode) The blower will begin operation momentarily after the AUTO switch is pressed. The fan speed rises gradually to the objective speed over a time period of 3 seconds or less (actual time depends on the objective fan speed).
Front door speaker
Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE
speaker amp. amplifies the
audio signals before sending them to the front door speakers using the audio
signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. ...
Satellite radio antenna
Removal and Installation
REMOVAL
Lower the headlining at the rear. Refer to INT-33, "Exploded
View".
Disconnect the harness connector (A) from satellite radio
antenna.
Remove the satellite radio antenna nut (B) and the satellite radio
antenna (1).
INSTALLATION
Ins ...
B1129 - B1132 side airbag module RH
Description
DTC B1129 - B1132 FRONT RH SIDE AIR BAG MODULE
The front RH side air bag module is wired to the air bag diagnosis sensor
unit. The air bag diagnosis sensorunit will monitor for opens and shorts in
detected lines to the front RH side air bag module.
PART LOCATION
DTC Logic
DTC DE ...