CUSTOMER CONCERN Customer states the ABS warning light is on and DTC C0210 remains after right rear wheel-speed sensor replacement. CAUSE Testing confirmed a fault in the right rear wheel-speed sensor harness or circuit rather than the replacement sensor. CORRECTION Repair right rear wheel-speed sensor wiring harness and clear ABS DTCs.

CUSTOMER CONCERN Customer states the ABS pump cycles every few minutes and DTC C1391 is stored. CAUSE No external brake-fluid leak was present. Scan data showed accumulator pressure rising with the pump operating and dropping after shutdown, confirming an internal brake actuator leak. CORRECTION Remove and replace brake actuator assembly. Perform required brake-system bleed and actuator initialization.

CUSTOMER CONCERN Customer states brake pads and rotors were replaced, but the brake system will not bleed and no fluid reaches the right rear caliper. CAUSE The electronically controlled brake system contained trapped air and required the Toyota scan-tool-controlled bleed routine rather than conventional manual bleeding. CORRECTION Perform complete hybrid ABS service-bleed procedure with a compatible scan tool and pressure bleeder.