U06xx OBD-II Codes (U0600–U0699)

100 fault codes in the U06xx range. Click any code for causes, diagnostic steps, severity, and common fixes.

U0600 moderate
Invalid Data Received From Internal Control Module Memory
U0601 moderate
Lost Communication With Internal Control Module Memory
U0602 moderate
Internal Control Module Memory Circuit Malfunction
U0603 moderate
Internal Control Module Memory Signal Performance
U0604 moderate
Internal Control Module Memory Circuit Low
U0605 moderate
Internal Control Module Memory Circuit High
U0606 moderate
Internal Control Module Memory Circuit Intermittent
U0607 moderate
Invalid Data Received From Internal Control Module Memory - Signal Range
U0608 moderate
Internal Control Module Memory Module No Response
U0609 moderate
Internal Control Module Memory Communication Bus Off
U0610 critical
Invalid Data Received From Internal Control Module Memory Checksum
U0611 critical
Lost Communication With Internal Control Module Memory Checksum
U0612 critical
Internal Control Module Memory Checksum Circuit Malfunction
U0613 critical
Internal Control Module Memory Checksum Signal Performance
U0614 critical
Internal Control Module Memory Checksum Circuit Low
U0615 critical
Internal Control Module Memory Checksum Circuit High
U0616 critical
Internal Control Module Memory Checksum Circuit Intermittent
U0617 critical
Invalid Data Received From Internal Control Module Memory Checksum - Signal Range
U0618 critical
Internal Control Module Memory Checksum Module No Response
U0619 critical
Internal Control Module Memory Checksum Communication Bus Off
U0620 moderate
Invalid Data Received From Control Module Calibration
U0621 moderate
Lost Communication With Control Module Calibration
U0622 moderate
Control Module Calibration Circuit Malfunction
U0623 moderate
Control Module Calibration Signal Performance
U0624 moderate
Control Module Calibration Circuit Low
U0625 moderate
Control Module Calibration Circuit High
U0626 moderate
Control Module Calibration Circuit Intermittent
U0627 moderate
Invalid Data Received From Control Module Calibration - Signal Range
U0628 moderate
Control Module Calibration Module No Response
U0629 moderate
Control Module Calibration Communication Bus Off
U0630 critical
Invalid Data Received From VIN Mismatch
U0631 critical
Lost Communication With VIN Mismatch
U0632 critical
VIN Mismatch Circuit Malfunction
U0633 critical
VIN Mismatch Signal Performance
U0634 critical
VIN Mismatch Circuit Low
U0635 critical
VIN Mismatch Circuit High
U0636 critical
VIN Mismatch Circuit Intermittent
U0637 critical
Invalid Data Received From VIN Mismatch - Signal Range
U0638 critical
VIN Mismatch Module No Response
U0639 critical
VIN Mismatch Communication Bus Off
U0640 moderate
Invalid Data Received From Ride Level Control
U0641 moderate
Lost Communication With Ride Level Control
U0642 moderate
Ride Level Control Circuit Malfunction
U0643 moderate
Ride Level Control Signal Performance
U0644 moderate
Ride Level Control Circuit Low
U0645 moderate
Ride Level Control Circuit High
U0646 moderate
Ride Level Control Circuit Intermittent
U0647 moderate
Invalid Data Received From Ride Level Control - Signal Range
U0648 moderate
Ride Level Control Module No Response
U0649 moderate
Ride Level Control Communication Bus Off
U0650 low
Invalid Data Received From Seat Memory Module
U0651 low
Lost Communication With Seat Memory Module
U0652 low
Seat Memory Module Circuit Malfunction
U0653 low
Seat Memory Module Signal Performance
U0654 low
Seat Memory Module Circuit Low
U0655 low
Seat Memory Module Circuit High
U0656 low
Seat Memory Module Circuit Intermittent
U0657 low
Invalid Data Received From Seat Memory Module - Signal Range
U0658 low
Seat Memory Module Module No Response
U0659 low
Seat Memory Module Communication Bus Off
U0660 low
Invalid Data Received From Headlamp Leveling Module
U0661 low
Lost Communication With Headlamp Leveling Module
U0662 low
Headlamp Leveling Module Circuit Malfunction
U0663 low
Headlamp Leveling Module Signal Performance
U0664 low
Headlamp Leveling Module Circuit Low
U0665 low
Headlamp Leveling Module Circuit High
U0666 low
Headlamp Leveling Module Circuit Intermittent
U0667 low
Invalid Data Received From Headlamp Leveling Module - Signal Range
U0668 low
Headlamp Leveling Module Module No Response
U0669 low
Headlamp Leveling Module Communication Bus Off
U0670 low
Invalid Data Received From Power Liftgate Module
U0671 low
Lost Communication With Power Liftgate Module
U0672 low
Power Liftgate Module Circuit Malfunction
U0673 low
Power Liftgate Module Signal Performance
U0674 low
Power Liftgate Module Circuit Low
U0675 low
Power Liftgate Module Circuit High
U0676 low
Power Liftgate Module Circuit Intermittent
U0677 low
Invalid Data Received From Power Liftgate Module - Signal Range
U0678 low
Power Liftgate Module Module No Response
U0679 low
Power Liftgate Module Communication Bus Off
U0680 moderate
Invalid Data Received From Smart Key Module
U0681 moderate
Lost Communication With Smart Key Module
U0682 moderate
Smart Key Module Circuit Malfunction
U0683 moderate
Smart Key Module Signal Performance
U0684 moderate
Smart Key Module Circuit Low
U0685 moderate
Smart Key Module Circuit High
U0686 moderate
Smart Key Module Circuit Intermittent
U0687 moderate
Invalid Data Received From Smart Key Module - Signal Range
U0688 moderate
Smart Key Module Module No Response
U0689 moderate
Smart Key Module Communication Bus Off
U0690 critical
Invalid Data Received From Gateway Module
U0691 critical
Lost Communication With Gateway Module
U0692 critical
Gateway Module Circuit Malfunction
U0693 critical
Gateway Module Signal Performance
U0694 critical
Gateway Module Circuit Low
U0695 critical
Gateway Module Circuit High
U0696 critical
Gateway Module Circuit Intermittent
U0697 critical
Invalid Data Received From Gateway Module - Signal Range
U0698 critical
Gateway Module Module No Response
U0699 critical
Gateway Module Communication Bus Off
← All Network & Communication ranges All categories Browse by make