Applies to: COO7
What does Scania COO fault code 620 mean?
The voltage in the low range solenoid valve circuit has been high for longer than permitted.
What causes Scania DTC 620?
The fault may be due to: - The circuit has been broken or shorted to battery. - Faulty solenoid valve.
How does the system react?
Open circuit: Low range cannot be activated as long as the fault is active. Short circuit to voltage: Low range cannot be deactivated as long as the fault is active.
How to fix Scania COO fault code 620?
Check the low range solenoid valve including cable harness and connectors.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.