If the fresh/recirculation mode does not change or exhaust gas can be smelled even while set to recirculation mode, the following causes are possible.
| Malfunction Status | Factor |
|---|---|
·
Fresh/recirculation mode does not change. ·
Fresh/recirculation mode does not change automatically. ·
Exhaust gas can be smelled even while set to recirculation mode. |
·
Blower servo motor malfunction ·
Blower damper and link operation (jamming) ·
Foreign object jammed in door ·
Air conditioning radiator sub-assembly malfunction ·
High engine coolant temperature |
Check that the No. 1 blower damper servo sub-assembly is installed correctly.
No. 1 blower damper servo sub-assembly is installed correctly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check for DTCs.
DTC B1442 is not output
| Result | Proceed to |
|---|---|
| OK (except 1GD-FTV (w/ Exhaust Gas Temperature Sensor for EGR)) | A |
| OK (for 1GD-FTV (w/ Exhaust Gas Temperature Sensor for EGR)) | B |
| NG | C |
A
B
C
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List.
Read the Data List according to the display on the GTS.
| 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.
|
| Tester Display |
|---|
| Coolant Temperature |
The value of the display does not change frequently.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and Transmission / Data List.
Read the Data List according to the display on the GTS.
| 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.
|
| Tester Display |
|---|
| Coolant Temperature |
The value of the display does not change frequently.
| Proceed to |
|---|
| OK |
| NG |
OK
NG