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).
STRG branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the steering angle sensor
for damage, bend and loose connection
(unit side and connector side).
2.CHECK HARNESS FOR OPE ...
B260A ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...
B2113 reclining motor
Description
The seat reclining motor is installed to the seatback assembly.
The seat reclining motor is activated with the driver seat control unit.
Tilts the seatback forward/backward by changing the rotation direction
of reclining motor.
DTC Logic
DTC DETECTION LOGIC
DTC No. ...