Toyota Corolla Cross: M20a-fks (battery / Charging)

 Engine Immobiliser System Circuit Short to Battery (B279A12)

DESCRIPTION If the communication line (IMI - EFIO) between the hybrid vehicle control ECU and ID code box (immobiliser code ECU) is stuck high, the hybrid vehicle control ECU will store this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279A12 E

 Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT COMPONENTS(DISASSEMBLY) Procedure Part Name Code 1 NO. 1 VENTILATION CASE 12211 - - - 2 CYLINDER BLOCK WITH HEAD STRAIGHT SCREW PLUG 11432R - - 3 CONNECTING ROD THRUS