Toyota Corolla Cross: Problem Symptoms Table

Toyota Corolla Cross (2022-2026) Service Manual / Vehicle Interior / Seat / Seat Heater 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.

Seat Heater System

Symptom	Suspected Area	Link
Seat heater does not operate LH	S/HTR F/L fuse	-
	PANEL fuse	-
	Seat heater switch (for LH)
	Check the thermostat
	Front seat cushion heater assembly LH*1
	Front seat cushion heater assembly LH*2
	Front seatback heater assembly LH*1
	Front seatback heater assembly LH*2
	Wire harness or connector	-
Seat heater does not operate RH	S/HTR F/R fuse	-
	PANEL fuse	-
	Seat heater switch (for RH)
	Check the thermostat
	Front seat cushion heater assembly RH
	Front seatback heater assembly RH
	Wire harness or connector	-

*1: for Manual Seat
*2: for Power Seat

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Lock Function does not Operate (Close &)

DESCRIPTION The back door control switch signal is sent to the multiplex network door ECU. If the power back door system does not operate when the back door control switch is operated, the back door control switch circuit may be malfunctioning. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: If

Installing the spare tire

1. Remove any dirt or foreign matter from the wheel contact surface. If foreign matter is on the wheel contact surface, the wheel nuts may loosen while the vehicle is in motion, causing the tire to come off. 2. Install the tire and loosely tighten each wheel nut by hand by approximately the same a

Toyota Corolla Cross: Problem Symptoms Table

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