Toyota Yaris: Active Torque Split Awd System / Problem Symptoms Table

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Drivetrain / Gf1a (transfer / 4wd / Awd) / Active Torque Split Awd System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Symptom	Suspected Area	Link
Tight-corner braking phenomenon*	Steering sensor
	Brake control system
	AWD ECU assembly
	Transmission coupling assembly
AWD warning message remains displayed	AWD warning light circuit
AWD warning message is not displayed	AWD warning light circuit
AWD control switch (No. 2 combination switch assembly) does not operate	AWD control switch (No. 2 combination switch assembly) circuit

HINT:

*: Tight corner braking phenomenon: a phenomenon in which a AWD vehicle may lurch and decelerate due to a rotational speed difference between the front and rear wheels, such as during low-speed cornering in AWD mode.

Calibration

CALIBRATION NOTICE: When the AWD ECU assembly is replaced, before removing the AWD ECU assembly, it is necessary to perform ECU Data Save to save the original AWD ECU assembly information...

Dtc Check / Clear

DTC CHECK / CLEAR DTC CHECK (a) Check for DTC(s). Chassis > Four Wheel Drive > Trouble Codes (b) Check the details of the DTCs. NOTICE: Make sure to clear the DTCs after repair...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Rear Door Left Speaker Circuit Actuator Stuck (B1AB071)

DESCRIPTION This DTC is output when a malfunction occurs in the left side rear speaker system. DTC No. Detection Item DTC Detection Condition Trouble Area B1AB071 Rear Door Left Speaker Circuit Actuator Stuck When starting the system from IG OFF → ACC ON, the stereo component equalizer assembly detects a malfunction in the left side rear speaker system* Harness or connector Rear speaker assembly LH Stereo component equalizer assembly HINT: *: To prevent false positives, fault monitoring is not performed in the following conditions: Auxiliary battery voltage has decreased to 9...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Installation

INSTALLATION PROCEDURE 1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR HINT: Perform "Inspection After Repair" after replacing the engine coolant temperature sensor. Click here (a) Apply a light coat of engine coolant to the O-ring of the engine coolant temperature sensor...

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