Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Seat Heater Switch

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

Removal

REMOVAL

CAUTION / NOTICE / HINT

Procedure

Part Name Code

1

SWITCH BASE

55449D

-

-

-

2

REMOVE SEAT HEATER SWITCH

84751F

-

-

PROCEDURE

1. REMOVE SWITCH BASE

2. REMOVE SEAT HEATER SWITCH (for LH Side)

(1) Using a screwdriver with its tip wrapped with protective tape, disengage the claws and remove the steering heater switch.

Inspection

INSPECTION

PROCEDURE

1. INSPECT SEAT HEATER SWITCH (for LH Side)

(a) Inspect the illumination operation.

(1) Apply auxiliary battery voltage to the seat heater switch connector, and check that the seat heater switch LED illuminates.

OK:

Auxiliary Battery Connection

Specified Condition
If the result is not as specified, replace the seat heater switch.

Auxiliary battery positive (+) → I210-5 (ILL+)

Auxiliary battery negative (-) → I210-2 (ILL-)

LED illuminates

*a

Component without harness connected

(Seat Heater Switch)

2. INSPECT SEAT HEATER SWITCH (for RH Side)

(a) Inspect the illumination operation.

(1) Apply auxiliary battery voltage to the seat heater switch connector, and check that the seat heater switch LED illuminates.

OK:

Auxiliary Battery Connection

Specified Condition
If the result is not as specified, replace the seat heater switch.

Auxiliary battery positive (+) → I209-5 (ILL+)

Auxiliary battery negative (-) → I209-2 (ILL-)

LED illuminates

*a

Component without harness connected

(Seat Heater Switch)

Installation

INSTALLATION

CAUTION / NOTICE / HINT

Procedure

Part Name Code

1

INSTALL SEAT HEATER SWITCH

84751F

-

-

-

2

SWITCH BASE

55449D

-

-

-

PROCEDURE

1. INSTALL SEAT HEATER SWITCH (for LH Side)

2. INSTALL SWITCH BASE

    READ NEXT:

     Seat Heater System

     Parts Location

    PARTS LOCATION ILLUSTRATION *1 SEAT HEATER SWITCH (for LH) *2 SEAT HEATER SWITCH (for RH) *3 POWER DISTRIBUTION BOX ASSEMBLY - PANEL FUSE - S/HTR F/L FUSE - S/HTR F/R

     System Diagram

    SYSTEM DIAGRAM for Driver Seat for Front Passenger Seat

    SEE MORE:

     Inspection

    INSPECTION PROCEDURE 1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY CAUTION: Do not put your hands into the water that has been heated for the inspection. Touching the heated water could result in burns. HINT: The valve opening temperature is inscribed on the water inlet wit

     Lost Communication with Hybrid/EV Powertrain Control Module Missing Message (U029387)

    DESCRIPTION The battery ECU assembly transmits and receives signals via CAN communication to and from the hybrid vehicle control ECU. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note U029387 Lost Communication with Hybrid

    © 2020-2026 Copyright www.tcorollacross.com PT NL