Scania fault code 620
Code 620 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
COO Coordinator
Low range
The voltage in the low range solenoid valve circuit has been high for longer than permitted.
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CUV Visibility system
Internal control unit, left-hand headlamp
Fault in the temperature sensor in the internal control unit in the left-hand headlamp.
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