Home Engine/Hybrid System Cruise Control DYNAMIC RADAR CRUISE CONTROL SYSTEM
Last Modified: 11-27-2007 1.6 J
Service Category: Engine/Hybrid System Section: Cruise Control
Model Year: 2008 Model: LX570 Doc ID: RM000003FZO000X
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: DESCRIPTION (2008 LX570)

Distance Control ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the distance control ECU.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT FUSE (ECU-IG No. 3)

(a) Remove the ECU-IG No. 3 fuse from the cowl side junction block RH.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

ECU-IG No. 3 fuse

Always

Below 1 Ω

OK

2.

CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - BATTERY AND BODY GROUND)


(a) Disconnect the E86 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

E86-1 (B) - Body ground

Engine switch on (IG)

11 to 14 V

Engine switch off

Below 1 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

E86-12 (GND) - Body ground

Always

Below 1 Ω

OK