Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Odo/Trip Switch Malfunction

DESCRIPTION

In this circuit, the combination meter assembly detects ODO/TRIP switch signals via a direct line.

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.

PROCEDURE

1.

READ VALUE USING TECHSTREAM (ODO/TRIP CHANGE SW)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine 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

ODO/TRIP Change SW

ODO/TRIP switch

OFF or ON

OFF: Switch released

ON: Switch pushed

-

Body Electrical > Combination Meter > Data List

Tester Display

ODO/TRIP Change SW

OK:

ODO/TRIP switch condition displayed on the Techstream changes with the actual switch operation.

OK

REPLACE COMBINATION METER ASSEMBLY

NG

2.

INSPECT TRIP SWITCH

(a) Remove the trip switch.

Click here

(b) Inspect the trip switch.

Click here

NG

REPLACE TRIP SWITCH

OK

3.

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

(a) Disconnect the J10 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

J10-4 (ODO) - J1-4 (A/B)

Always

Below 1 Ω

J10-26 (SW3) - J1-7 (E)

Always

Below 1 Ω

J10-4 (ODO) or J1-4 (A/B) - Body ground

Always

10 kΩ or higher

J10-26 (SW3) or J1-7 (E) - Body ground

Always

10 kΩ or higher

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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