Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM10000000158D9
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 -           ]
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Operating Light Control Rheostat does not Change Light Brightness; 2018 - 2024 MY Camry HV [07/2017 -        ]

Operating Light Control Rheostat does not Change Light Brightness

DESCRIPTION

The combination meter assembly receives signals through 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 in the trip switch.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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.

HINT:

  • The illumination level of the combination meter assembly can be adjusted by pressing the light control rheostat switch (trip switch).
  • The illumination of the combination meter assembly dims when the taillights are turned on.
  • Setting the illumination to maximum brightness cancels the above dimming of the illumination.

PROCEDURE

1.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Light Control Switch (UP)

Light control rheostat up switch (Trip switch)

OFF or ON

OFF: Switch released

ON: Switch pushed

-

Light Control Switch (DOWN)

Light control rheostat down switch (Trip switch)

OFF or ON

OFF: Switch released

ON: Switch pushed

-

Body Electrical > Combination Meter > Data List

Tester Display

Light Control Switch (UP)

Light Control Switch (DOWN)

OK:

Light control rheostat up or down switch condition displayed on the Techstream changes with the actual switch operation.

OK

REPLACE COMBINATION METER ASSEMBLY 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

NG

2.

INSPECT TRIP SWITCH

(a) Remove the trip switch.

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; METER / GAUGE / DISPLAY: TRIP SWITCH: REMOVAL

(b) Inspect the trip switch.

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; METER / GAUGE / DISPLAY: TRIP SWITCH: INSPECTION

NG

REPLACE TRIP SWITCH

OK

3.

CHECK HARNESS AND CONNECTOR (TRIP SWITCH - COMBINATION METER ASSEMBLY)

(a) Disconnect the K20 combination meter assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K111-4 (RV) - K20-2 (TR)

Always

Below 1 Ω

K111-1 (E) - K20-5 (SW3)

Always

Below 1 Ω

K111-4 (RV) or K20-2 (TR) - Body ground

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR