Toyota Corolla Cross: Recirculated/Fresh Air Modes do not Switch
DESCRIPTION
If the air inlet mode cannot be changed between recirculation/fresh or exhaust gas odors can be smelled even though recirculation mode is selected, the following factors may be the cause.
|
Symptom | Factor |
- Air inlet mode cannot be changed between recirculation/fresh
- Exhaust gas odors can be smelled when air inlet mode set to recirculation mode
|
- No. 1 blower damper servo sub-assembly malfunction
- Damper link disconnection
- Air inlet damper mechanically locked
- Engine coolant temperature (high)
- Air conditioner unit assembly malfunction
|
PROCEDURE
| 1. |
CHECK NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY |
(a) Check that the No. 1 blower damper servo sub-assembly is installed correctly.
OK:
The No. 1 blower damper servo sub-assembly is installed correctly.
| NG |
.gif) | INSTALL NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY |
|
OK |
.gif) | |
(a) Check for DTCs.
Body Electrical > Air Conditioner > Trouble Codes
|
Result | Proceed to |
|
B143A87 and B143B7F is not output |
A |
| B143A87 is output |
B |
| B143B7F is output |
C |
| B |
| GO TO DTC B143A87 |
| C |
| GO TO DTC B143B7F |
|
A | |
| |
(a) Read the Data List according to the display on the GTS.
Powertrain > Engine > Data List
|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|
Coolant Temperature | Engine coolant temperature |
Min.: -40°C (-40°F), Max.: 140°C (284°F) |
75 to 100°C (167 to 212°F): After warming up |
This is the engine coolant temperature.
HINT:
- After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).
- After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal.
- If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.
- Check if the engine overheats if the value indicated is higher than 135°C (275°F).
|
Powertrain > Engine > Data List
|
Tester Display |
| Coolant Temperature |
OK:
After warming up the engine, the temperature value displayed is within the range specified in the normal condition column.
| OK |
| REPLACE AIR CONDITIONER UNIT ASSEMBLY |
| NG |
| GO TO COOLING SYSTEM |
READ NEXT:
DESCRIPTION If warm air blows from the registers regardless of the temperature setting of the air conditioning system, the following factors may be the cause.
Symptom Factor
No cool ai
DESCRIPTION If the air outlet mode does not change even though the air outlet display changes, the following factors may be the cause.
Symptom Factor
Air outlet mode cannot be changed
DESCRIPTION If the temperature of the air that blows from the left and right front registers differs, even though the same temperature is set for both sides, the following factors may be the cause.
SEE MORE:
DESCRIPTION
The TCM receives signals from the skid control ECU via CAN communication. When
DTCs indicating a CAN communication system malfunction are output, repair the CAN
communication system before performing troubleshooting for each corresponding ECU
or sensor.
DTC No.
The PKSB (Parking Support
Brake) consists of the following
functions that operate
when driving at a low
speed or backing up, such
as when parking. When the
system determines that the
possibility of a collision
with a detected object is
high, a warning operates to
urge the driver to take evasive
acti
