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G80 2.5T Advanced, AWD
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Repair and Diagnosis
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Transmission
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Transmission Control Systems
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4WD Control System Diagnosis
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DTC U012A-87: Lost Communication With ICSC Module
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DTC Information And Inspection
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DTC Detecting Condition
DTC Information And Inspection: DTC Detecting Condition
Trouble Shooting
Condition
Possible Cause
Main Action
Check CAN signal
Poor connection in each communication module
Open/short in CAN communication line
IEB (Include ICSC Logic)
Prerequisite Condition
Turn engine ON
Threshold Value
No ICSC CAN signal is received
Diagnostic Time
2 sec