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{Osprey CCM}
DTC Troubleshooting Data
Version: 2.0
Date: 28-Jul-17
Author: ERC
Page: 228 of 244
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TATA MOTORS Ltd.
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U0401-81:- Invalid Data Received From ECM
Overview:
ISO Code
U0401-81
Customer Symptom
Reduced climate functionality and performance. Cooling
does not happen as per user set temperature request.
Fault Effects (On Vehicle)
1) Accurate heating/Cooling cannot be achieved
2) Cold start compensation for Blower and Air
distribution will not be possible
Lamp Status (If Any)
N.A
Fault Detection Condition
Relevant functional DTCs present in ECM
Normal Operating Condition
ECM ECU sends correct data in normal condition.
Probable Trouble Area
Incorrect data received from ECM.
Healing Condition
After rectifying relevant functional failures in the ECM
ECU