Toyota Corolla Cross: Theft Deterrent / Keyless Entry

 A/C Switch Indicator does not Turn On

DESCRIPTION If none of the switch indicators on the air conditioning control assembly illuminate, the following factors may be the cause. Symptom Factor A/C switch indicator does not illuminate Air conditioning amplifier assembly malfunction Air conditioning control

 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