Last Modified: 11-29-2007 1.6 J
Service Category: Engine/Hybrid System Section: Cruise Control
Model Year: 2008 Model: Sequoia Doc ID: RM000000V1900XX
Title: CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

Distance Control ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the distance control ECU. The distance control ECU determines information about the vehicle in front based on data from the laser radar sensor, and then decides how much acceleration and/or deceleration is needed to maintain the set distance. The distance control ECU also requests the skid control ECU to apply braking and to sound the buzzer.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (DISTANCE ECU - POWER SOURCE AND GROUND)


(a) Disconnect the A43 distance control ECU connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

A43-1 (B) - Body ground

Ignition switch ON

11 to 14 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A43-10 (SGND) - Body ground

Always

Below 1 Ω

A43-12 (GND) - Body ground

Always

Below 1 Ω

OK