1) Depress the brake pedal with the force of 50 kg (110 lb).
2) Measure the voltage between VDCCM connector terminals.
Connector & terminal
(B310) No. 76 (+) — No. 75 (−):
(B310) No. 44 (+) — No. 75 (−):
Is the voltage less than 0.2 V?
Replace the VDCH/U.