Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

7 (IG) - 8 (SK)

Sonar switch off

10 kΩ or higher

Sonar switch on

Below 1 Ω

If the result is not as specified, replace the back sonar or clearance sonar switch assembly.

(b) Check that the switch illuminates.

OK:

Tester Connection

Specified Condition

Battery positive (+) → Terminal 1 (ILL+)

Battery negative (-) → Terminal 6 (ILL-)

Illuminates

If the result is not as specified, replace the back sonar or clearance sonar switch assembly.

Text in Illustration

*a

Component without harness connected

(Back Sonar or Clearance Sonar Switch Assembly)

    Components

    Installation

    See More:

    Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Cruise Control Switch Circuit
    DESCRIPTION The cruise control main switch is used to turn the dynamic radar cruise control system on and off, as well as operate 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP and CANCEL. The SET, TAP-DOWN and - (COAST) functions, and the RES (RESUME), TAP-UP and + (ACCEL) f ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.502