Last Modified: 4-30-2014 6.6 U Doc ID: RM000001A4U001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: METER: METER / GAUGE SYSTEM: TERMINALS OF ECU; 2006 MY LX470 [05/2005 -        ]

TERMINALS OF ECU

1. CHECK COMBINATION METER ASSEMBLY

Terminal No.

Condition

Specified Condition

C12-4 - Body ground

Ignition switch ON,

Turn signal switch LEFT

10 to 14 V

Ignition switch ON,

Turn signal switch OFF and RIGHT

Below 1 V

C12-5 - Body ground

Ignition switch ON,

Light control switch ON

10 to 14 V

Ignition switch ON,

Light control switch OFF

Below 1 V

C12-6 - Body ground

Ignition switch ON,

Turn signal switch RIGHT

10 to 14 V

Ignition switch ON,

Turn signal switch OFF and LEFT

Below 1 V

C12-10 - Body ground

Ignition switch ON

10 to 14 V

Ignition switch OFF

Below 1 V

C12-12 - Body ground

Ignition switch ON,

ABS indicator light ON

10 to 14 V

Ignition switch ON,

ABS indicator light OFF

Below 1 V

C13-2 - C15-4

Ignition switch ON,

Fuel level F

Below 1 V

Ignition switch ON,

Fuel level E

4 to 7 V

C13-12 - Body ground

Always

10 to 14 V

C13-13 - Body ground

Ignition switch ON,

TIRE PRESSURE indicator light ON

10 to 14 V

Ignition switch ON,

TIRE PRESSURE indicator light OFF

Below 1 V

C13-14 - Body ground

Ignition switch ON,

Center differential lock switch ON

10 to 14 V

C14-11 - Body ground

Ignition switch ON,

Seat belt is unfastened

10 to 14 V

Ignition switch ON,

Seat belt is fastened

Below 1 V

C14-14 - Body ground

Ignition switch ON,

Charge warning light ON

10 to 14 V

Ignition switch ON,

Charge warning light OFF

Below 1 V

C14-18 - Body ground

Ignition switch ON,

Parking brake lever is released

10 to 14 V

Ignition switch ON,

Parking brake lever is pulled

Below 1 V

C15-6 - C15-2

Ignition switch ON,

Fuel sender gauge float UP

Approx. 0.5 V

Ignition switch ON,

Fuel sender gauge float DOWN

Approx. 5.5 V

C15-7 - Body ground

Ignition switch ON,

Light control rheostat volume minimum

10 to 14 V

Ignition switch ON,

Light control rheostat volume maximum

Below 1 V

C15-8 - Body ground

Light control switch TAIL

10 to 14 V

Light control switch OFF

Below 1 V

C15-9 - Body ground

Key unlock warning switch OFF (key is removed)

10 to 14 V

Key unlock warning switch ON (key is inserted)

Below 1 V

C15-10 - Body ground

Ignition switch ON,

Driver side door is closed

10 to 14 V

Ignition switch ON,

Driver side door is opened

Below 1 V

C15-11 - Body ground

Ignition switch ON

10 to 14 V

Ignition switch OFF

Below 1 V

C15-13 - Body ground

Ignition switch ACC

10 to 14 V

Ignition switch OFF

Below 1 V

C15-15 - Body ground

Engine is running

Pulse generation

C15-16 - Body ground

Ignition switch ON,

Slowly turn wheel

Pulse generation

If the result is not as specified, the combination meter may be malfunctioning.

Table of Terminal Connection

Terminal No.

Wire harness side

C12

1

-

2

3

Body ECU

Suspension Control ECU

4

Front Combination Light LH

Rear Combination Light RH

5

HEAD LH-LWR Fuse

6

Front Combination Light RH

Rear Combination Light LH

7

Combination Switch Assembly

8

-

9

10

MET Fuse

11

-

12

Skid Control ECU

13

-

14

15

16

17

18

19

20

Table of Terminal Connection

Terminal No.

Wire harness side

C13

1

-

2

-

3

-

4

Suspension Control ECU

5

6

7

8

PANEL Fuse

9

-

10

11

ECM

12

-

13

Tire Pressure Monitor ECU

14

Detection Switch (Center Diff. Lock)

15

Skid Control ECU

16

17

18

19

Center Airbag Sensor Assembly

20

-

Table of Terminal Connection

Terminal No.

Wire harness side

C14

1

Body ECU

2

-

3

4

Center Airbag Sensor Assembly

5

-

6

7

Oil Pressure Sensor

8

-

9

10

DLC3

11

Buckle Switch Assembly

12

-

13

14

Body ECU

15

-

16

Multi-display

17

18

Parking Brake Switch Assembly

19

Skid Control ECU

20

Brake Actuator

Table of Terminal Connection

Terminal No.

Wire harness side

C15

1

Body Ground

2

Fuel Sender Gauge Assembly

3

-

4

Fuel Sender Gauge Assembly

5

-

6

Fuel Sender Gauge Assembly

7

Light Control Rheostat

8

-

9

Unlock Warning Switch Assembly

10

Body ECU

11

GAUGE1 Fuse

12

ECU-B2 Fuse

13

ECU-IG1 Fuse

14

DOME Fuse

15

Vehicle Speed Sensor

16

ECM

Body ECU

A/C Control Assembly

Multi-display

Navigation ECU

Tire Pressure ECU

17

-

18

19

Gateway ECU

A/C Control Assembly

20