Toyota Corolla Cross: Ecm

 Power Steering Motor "A" Supply Voltage Circuit Voltage Below Threshold (C155A16,C155A17,C155B16,C155B17)

DESCRIPTION If a problem occurs in the system, the power source relay circuit and the motor relay circuit are shut off to stop power assist. The ECU must be replaced when there is a problem with the relays because the relays are built into the ECU. DTC No. Detection Item

 Instrument Panel Illumination does not Turn On

DESCRIPTION The power distribution box assembly controls the instrument panel illuminations. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. Before replacing the main body ECU (mult