DTC 11 [FULL-AUTO AIR CONDITIONER]
id0702c1802600
ZJ, ZY
DTC 11 |
Evaporator temperature sensor (past malfunction) |
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DETECTION CONDITION
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• Once or more in the past, the evaporator temperature signal input from the evaporator temperature sensor is -50 °C {58 °F} or less, or 100 °C {212 °F} or more.
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POSSIBLE CAUSE
|
• Evaporator temperature sensor malfunction
• Open or short circuit in wiring harness between evaporator temperature sensor and climate control unit
• Climate control unit malfunction
|
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
|
---|---|---|---|
1
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INSPECT EVAPORATOR TEMPERATURE SENSOR CONNECTOR CONDITION
• Turn the ignition switch to the LOCK position.
• Disconnect the evaporator temperature sensor connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Are the connector and terminals normal?
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Yes
|
Go to the next step.
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No
|
Repair/replace the connector or terminal.
After repair procedure, go to Step 9.
|
||
2
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INSPECT EVAPORATOR TEMPERATURE SENSOR
• Inspect the evaporator temperature sensor.
• Is the evaporator temperature sensor normal?
|
Yes
|
Go to the next step.
|
No
|
Replace the evaporator temperature sensor.
After replacement, go to Step 9.
|
||
3
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INSPECT EVAPORATOR TEMPERATURE SENSOR FOR SHORT CIRCUIT TO GROUND
• Inspect the wiring harness for continuity between evaporator temperature sensor connector terminal B and body ground.
• Is there continuity?
|
Yes
|
Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, go to Step 9.
|
No
|
Go to the next step.
|
||
4
|
INSPECT EVAPORATOR TEMPERATURE SENSOR FOR OPEN CIRCUIT
• Turn the ignition switch to the ON position.
• Measure the voltage at evaporator temperature sensor connector terminal B.
• Is the voltage 5 V?
|
Yes
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Go to Step 6.
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No
|
Go to the next step.
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5
|
INSPECT EVAPORATOR TEMPERATURE SENSOR CIRCUIT FOR OPEN CIRCUIT
• Measure the voltage at climate control unit connector terminal O.
• Is the voltage 5 V?
|
Yes
|
Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, go to Step 9.
|
No
|
Go to Step 8.
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6
|
INSPECT EVAPORATOR TEMPERATURE SENSOR FOR OPEN CIRCUIT
• Turn the ignition switch to the LOCK position.
• Inspect the wiring harness for continuity between evaporator temperature sensor connector terminal A and body ground.
• Is there continuity?
|
Yes
|
Go to Step 9.
|
No
|
Go to the next step.
|
||
7
|
INSPECT EVAPORATOR TEMPERATURE SENSOR CIRCUIT FOR OPEN CIRCUIT
• Inspect the wiring harness for continuity between climate control unit connector terminal S and body ground.
• Is there continuity?
|
Yes
|
Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, go to Step 9.
|
No
|
Go to the next step.
|
||
8
|
INSPECT CLIMATE CONTROL UNIT CONNECTOR CONDITION
• Disconnect the climate control unit connector.
• 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 connector or terminal.
After repair procedure, go to the next step.
|
||
9
|
VERIFY THAT SAME DTC IS NOT OUTPUT AGAIN
• Reconnect the disconnected connectors.
• Verify DTCs.
• Is DTC 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.
|
No
|
Go to the next step.
|
||
10
|
VERIFY THAT NO OTHER DTCs ARE PRESENT
• Verify other DTC displayed.
• Are any other DTCs output?
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Yes
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Perform the corresponding DTC inspection.
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No
|
DTC troubleshooting completed.
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MZ-CD 1.4 DI Turbo, MZ-CD 1.6 (Y6)
DTC 11 |
Evaporator temperature sensor (past malfunction) |
---|---|
DETECTION CONDITION
|
• Once or more in the past, the evaporator temperature signal input from the evaporator temperature sensor is -50 °C {58 °F} or less, or 100 °C {212 °F} or more.
|
POSSIBLE CAUSE
|
• Evaporator temperature sensor malfunction
• Instrument cluster malfunction
• Open or short circuit in wiring harness between evaporator temperature sensor and instrument cluster
• Open or short circuit in wiring harness between instrument cluster and climate control unit
• Climate control unit malfunction
|
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
|
---|---|---|---|
1
|
INSPECT FOR INSTRUMENT CLUSTER DTCs
• Connect the M-MDS to the DLC-2.
• Inspect for instrument cluster DTCs
• Is DTC B1B71:14 output?
|
Yes
|
Perform the corresponding DTC inspection.
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No
|
Go to the next step.
|
||
2
|
VERIFY INSTRUMENT CLUSTER CONNECTOR CONDITION
• Turn the ignition switch to the LOCK position.
• Disconnect the instrument cluster connector.
• 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 connector or terminal.
After repair procedure, go to Step 6.
|
||
3
|
VERIFY CLIMATE CONTROL UNIT CONNECTOR CONDITION
• Disconnect the climate control unit connector.
• 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 connector or terminal.
After repair procedure, go to Step 6.
|
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4
|
INSPECT SERIAL COMMUNICATION CIRCUIT FOR OPEN CIRCUIT
• Inspect the wiring harness between instrument cluster connector terminal 2I and climate control unit connector terminal T.
• Is there continuity?
|
Yes
|
Go to the next step.
|
No
|
Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, go to Step 6.
|
||
5
|
INSPECT SERIAL COMMUNICATION CIRCUIT FOR SHORT CIRCUIT
• Inspect the wiring harness for continuity between climate control unit connector terminal T and body ground.
• Is there continuity?
|
Yes
|
Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, Go to the next step.
|
No
|
Go to the next step.
|
||
6
|
VERIFY THAT SAME DTC IS NOT OUTPUT
• Reconnect the disconnected connectors.
• Verify DTCs.
• Is DTC 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.
|
No
|
Go to the next step.
|
||
7
|
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.
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