Last Modified: 4-30-2014 6.6 J Doc ID: RM000000WIQ007X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Gateway ECU Communication Stop Mode; 2006 MY LX470 [05/2005 -        ]

Gateway ECU Communication Stop Mode

DESCRIPTION

Detection Item

Symptom

Trouble Area

Gateway ECU communication stop mode

  • "BODY/GATEWAY" is not displayed on "BUS CHECK" of intelligent tester
  • Applies to "GATEWAY ECU COMMUNICATION STOP MODE" in "DTC COMBINATION TABLE"
  • Power source or inside gateway ECU

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK WIRE HARNESS (GATEWAY ECU - BATTERY AND BODY GROUND)

(a) Disconnect the G5 gateway ECU connector.

(b) Measure the resistance of the wire harness side connector.

Standard resistance:

Tester Connection

Condition

Specified Condition

G5-24 (GND) - Body ground

Always

Below 1 Ω

(c) Measure the voltage of the wire harness side connector.

Standard voltage:

Tester Connection

Condition

Specified Condition

G5-10 (BATT) - Body ground

Always

10 to 14 V

G5-2 (ACC) - Body ground

Ignition switch ON

10 to 14 V

G5-1 (IG) - Body ground

Ignition switch ON

10 to 14 V

NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

REPLACE GATEWAY ECU