DTC U200D:11 [FULL-AUTO AIR CONDITIONER]


id0702c1736600


With Dual Type Climate Control Unit

System malfunction location

•  Climate control unit circuit voltage (+5V) circuit short to ground
Detection condition
•  Malfunction in wiring harness between climate control unit circuit voltage (+5V) and each sensor/actuator
Fail-safe function
Not applicable
Possible cause
•  Connector or terminal malfunction
•  Each sensor/actuator malfunction
•  Short to ground in wiring harness between climate control unit and air mix actuator
•  Short to ground in wiring harness between climate control unit and airflow mode actuator
•  Short to ground in wiring harness between climate control unit and solar radiation sensor
•  Climate control unit malfunction


Diagnostic Procedure

Step

Inspection

Action

1
VERIFY CLIMATE CONTROL UNIT CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the climate control unit connectors.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Repair/replace the malfunctioning vehicle wiring harness, connector, or terminal.
After repair procedure, go to the next step.
2
VERIFY CONNECTOR CONDITION
•  Disconnect the following each sensor/actuator connectors.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Replace the malfunctioning part.
After replace procedure, go to the next step.
3
INSPECT EACH SENSOR/ACTUATOR
•  Inspect the following each sensor/actuator.
•  Is it normal?
Yes
Go to the next step.
No
Replace the malfunctioning sensor/actuator.
After replace procedure, go to the next step.
4
INSPECT EACH SENSOR/ACTUATOR CIRCUIT FOR SHORT TO GROUND
•  Inspect for continuity between the following terminal (wiring harness-side) and body ground:
―  Climate control unit terminal 1N
•   Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between climate control unit terminal 1N and each sensor/actuator terminals.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to the next step.
No
Go to the next step.
5
VERIFY THAT SAME DTC IS NOT OUTPUT AGAIN
•  Reconnect the disconnected connectors.
•  Clear the past malfunction from memory.
•  Verify DTCs.
•  Is DTC U200D:11 output?
Yes
Repeat the inspection from Step 1.
•  If the malfunction does not recur, go to the next step.
•  If the malfunction recurs, replace the climate control unit.
Go to the next step.
No
Go to the next step.
6
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Verify other DTCs displayed.
•  Are any other DTCs output?
Yes
Perform the corresponding DTC inspection.
No
DTC troubleshooting completed.


With Single Type Climate Control Unit

System malfunction location

•  Climate control unit circuit voltage (+5V) circuit short to ground
Detection condition
•  Malfunction in wiring harness between climate control unit circuit voltage (+5V) and each sensor/actuator
Fail-safe function
Not applicable
Possible cause
•  Connector or terminal malfunction
•  Each sensor/actuator malfunction
•  Short to ground in wiring harness between climate control unit and air mix actuator
•  Short to ground in wiring harness between climate control unit and airflow mode actuator
•  Short to ground in wiring harness between climate control unit and solar radiation sensor
•  Climate control unit malfunction


Diagnostic Procedure

STEP

INSPECTION

ACTION

1
VERIFY CLIMATE CONTROL UNIT CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the climate control unit connectors.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Repair/replace the malfunctioning vehicle wiring harness, connector, or terminal.
After repair procedure, go to the next step.
2
VERIFY CONNECTOR CONDITION
•  Disconnect the following each sensor/actuator connectors.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Replace the malfunctioning part.
After replace procedure, go to the next step.
3
INSPECT EACH SENSOR/ACTUATOR
•  Inspect the following each sensor/actuator.
•  Is it normal?
Yes
Go to the next step.
No
Replace the malfunctioning sensor/actuator.
After replace procedure, go to the next step.
4
INSPECT EACH SENSOR/ACTUATOR CIRCUIT FOR SHORT TO GROUND
•  Inspect for continuity between the following terminal (wiring harness-side) and body ground:
―  Climate control unit terminal H
•   Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between climate control unit terminal H and each sensor/actuator terminals.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to the next step.
No
Go to the next step.
5
VERIFY THAT SAME DTC IS NOT OUTPUT AGAIN
•  Reconnect the disconnected connectors.
•  Clear the past malfunction from memory.
•  Verify DTCs.
•  Is DTC U200D:11 output?
Yes
Repeat the inspection from Step 1.
•  If the malfunction does not recur, go to the next step.
•  If the malfunction recurs, replace the climate control unit.
Go to the next step.
No
Go to the next step.
6
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Verify other DTCs displayed.
•  Are any other DTCs output?
Yes
Perform the corresponding DTC inspection.
No
DTC troubleshooting completed.