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K5 GT
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Repair and Diagnosis
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Engine Control System Diagnosis - 2.5L (16 Of 16)
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DTC U042B-F0: Invalid Data Received From Chassis Control Module 'A'
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DTC Information
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DTC Description
DTC Description
The ECM sets a DTC U042BF0 if it does not receive data from the HECU for more than 2s.