Toyota CH-R Service Manual: Meter Illumination is Always Dark

Toyota CH-R Service Manual / Meter / Gauge / Display / Meter / Gauge System / Meter Illumination is Always Dark

DESCRIPTION

The combination meter assembly receives signals from this circuit to adjust the illumination of the combination meter assembly. The combination meter assembly sets the illumination level based on the user operation of the light control rheostat switch.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1

    Click here

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
    • *1: w/ Smart Key System

HINT:

  • The meter illumination dims when the taillights are turned on.
  • Setting the meter illumination level to maximum brightness cancels the above dimming of the meter illumination.
  • Setting the meter illumination level to minimum brightness turns off the meter illumination.
  • The automatic light control sensor sensitivity can be customized.

    Click here

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication DTCs are output.

Click here

Result

Proceed to

CAN communication DTCs are not output.

A

CAN communication DTCs are output.

B
B

GO TO CAN COMMUNICATION SYSTEM

A

2.

CHECK FOR DTC

(a) Check if lighting system DTCs are output.

Click here

Body Electrical > Main Body > Trouble Codes

Result

Proceed to

DTC B1244 is not output.

A

DTC B1244 is output.

B
B

GO TO DTC B1244

A

3.

REPLACE COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly.

Click here

OK:

The operation of the combination meter assembly returns to normal.

OK

END
NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Meter Illumination does not Dim at Night
    DESCRIPTION In this circuit, the combination meter assembly receives auto dimmer signals from the main body ECU (multiplex network body ECU) via CAN communication. When the combination meter asse ...

    Engine Oil Pressure Switch Circuit
    DESCRIPTION The combination meter assembly and engine oil pressure switch assembly are connected via direct line. The combination meter assembly determines the engine oil pressure based on the en ...

    Other materials:

    Toyota CH-R Service Manual > Seat Belt Warning System(w/ Occupant Classification System): Rear Seat Belt Warning Light Malfunction
    DESCRIPTION The main body ECU (multiplex network body ECU) detects whether either the rear doors are open or closed based on the condition of the rear door courtesy light switch assemblies condition and then sends the rear door status signal to the combination meter assembly. The combination ...

    Toyota CH-R Service Manual > Smart Key System(for Start Function): Engine/Power Switch Malfunction (B2278)
    DESCRIPTION This DTC is stored when the SSW1 contact signal and SSW2 contact signal, which are detected when the engine switch is operated, do not match. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2278 ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2022 Copyright www.tochr.net
    0.0104