Applicable Systems
EC220 Excavator
Symptoms
The Volvo CE equipment displays diagnostic code VID20 on the instrument cluster. Boom Cylinder Leak has been detected. The warning lamp illuminates and equipment may derate or enter safe mode.
Possible Causes
- Boom Cylinder Leak - related component or sensor failure
- Wiring harness or connector fault
- Control unit (ECU/TCU/HCU) internal fault
- Fluid level, pressure, or temperature abnormality
- Mechanical wear or component degradation
Troubleshooting Steps
- Step 1: Connect Volvo CE Diagnostic Tool (VCAD Pro) and read all active and stored diagnostic trouble codes
All DTCs are retrieved with component and status information - Step 2: Inspect the wiring harness and connector for the affected system
Wiring and connectors are in good condition - Step 3: Use a multimeter to verify sensor signals and actuator circuits per Volvo CE service manual
Values are within specification - Step 4: Check fluid levels, pressures, and temperatures as applicable
Fluids are at proper levels and conditions - Step 5: Clear codes and operate equipment to verify repair
Code does not return and system operates normally
How to Reset
To reset Volvo CE code VID20: 1) Repair the underlying fault. 2) Use VCAD Pro to clear codes. 3) Cycle key switch. 4) Operate equipment to verify. Caution: Ensure root cause is resolved.
Frequently Asked Questions
- Q: What does Volvo CE code VID20 mean?
Code VID20 indicates: Boom Cylinder Leak. This is a Volvo Construction Equipment diagnostic code related to Hydraulic.
- Q: How serious is Volvo CE code VID20?
Severity: Major. Reduce load and seek service.
Source: Volvo CE Service Manual / VCAD Pro Diagnostic System - verified via BING International
Category: Heavy Equipment