Toyota Corolla Cross: Front Radar Sensor System

 Ignition Switch On/Start Position Circuit Low Circuit Short to Ground or Open (P253314)

DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery power source is supplied to the IGP and IGR terminals of the ECM. When the ignition switch is off, the auxiliary battery power source is cut off. When the ignition switch is turned off during driving, the auxiliary battery

 On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT VACUUM SENSOR ASSEMBLY (a) Connect the GTS to the DLC3. (b) Start the engine. (c) Turn the ignition switch off. (d) Turn the ignition switch to ON. (e) Turn the GTS on. (f) Enter the following menus: Powertrain / Stop and Start / Data List / Brake Boo