Traction voltage (VCB) low – Reduced speed
â–¶ How to fix
Check BMU/EMU for DTCs.
What you'll see
None
System reaction
EACS running at reduced speed, which can result in low system pressure.
Diagnostic depth
Detection
The DTC is set to active if: • The traction voltage is below 500 V for at least 5 seconds AND • the e-motor speed is below 13/16 (81%) of the requested (or default) speed for at least 5 seconds The DTC is set to inactive if: • the e-motor speed is above 15/16 (94%) of the requested speed for at least 5 seconds AND • the EACS is told to run
Possible cause
Low traction voltage in combination with high compressor load