Toyota Corolla Cross: Problem Symptoms Table

Toyota Corolla Cross (2022-2025) Service Manual / Vehicle Interior / Seat / Rear Seat Reminder 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.

Rear Seat Reminder System

Symptom	Suspected Area	Link
Rear seat reminder function does not operate	CAN communication system (for HEV Model)
	CAN communication system (for Gasoline Model)
	IG signal circuit
	Rear door courtesy switch circuit
	Main body ECU (Multiplex network body ECU)
	Power distribution box assembly
	Hybrid vehicle control ECU*1
	ECM*2
	Combination meter assembly

*1: for HEV Model
*2: for Gasoline Model

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Check Mode Procedure

CHECK MODE PROCEDURE DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that cannot be detected in normal mode. Check mode can also detect all of the malfunctions that can be detected in normal mode. In check mode, DTCs are stored with 1-trip dete

Calibration

CALIBRATION NOTICE: When any of the following parts have been replaced, perform adjustment shown in the following table. If not, the intuitive parking assist system may not operate correctly. ADJUST INTUITIVE PARKING ASSIST SYSTEM (a) The necessary procedures (adjustment, calibration, initia

Toyota Corolla Cross: Problem Symptoms Table

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