Toyota Yaris: Setup / When Replacing Or Removing/installing Parts

When Disconnecting Or Reconnecting Battery Terminal

Automatic Learning ChartAUTOMATIC LEARNING CHART AUTOMATIC LEARNING PERFORMED WHEN CABLE IS DISCONNECTED / RECONNECTED TO AUXILIARY BATTERY TERMINAL When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating...

Ecu Configuration

ECU CONFIGURATION STABILIZE A POWER SOURCE ON THE VEHICLE SIDE Shut off as many following systems and parts as possible since they would generate an electrical load...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Terminals Of Ecu

TERMINALS OF ECU CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (a) Disconnect the L13 multiplex network master switch assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid (B279986)

DESCRIPTION If there is a communication malfunction between the ECM and ID code box (immobiliser code ECU), or when the communication ID codes do not match, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279986 Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid Either of the following conditions is met (1 trip detection logic*): A malfunction is detected in the communication or communication lines between the ECM and ID code box (immobiliser code ECU)...