Last Modified: 4-30-2014 6.6 U Doc ID: RM0000018BI000X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: LIGHTING: LIGHTING SYSTEM: TERMINALS OF ECU; 2006 MY LX470 [05/2005 -        ]

TERMINALS OF ECU

1. CHECK BODY ECU (Main)

Symbols (Terminal No.)

Wiring Color

Condition

Specified Condition

GND1 (4) - Body ground

- - Body ground

Always

Below 1 V

SIG (10) - Body ground

Ignition switch is ON

10 to 14 V

BECU (11) - Body ground

Always

BDR1 (12) - Body ground

ILE (13) - Body ground

Key cylinder illumination is ON

Below 1 V

GND2 (16) - Body ground

Always

HRLY (17) - Body ground

Ignition switch is ON

10 to 14 V

TRLY (18) - Body ground

ACC (22) - Body ground

Ignition switch is ACC position

LMRY (B7-3) - Body ground

R-W - Body ground

Ignition switch is ON

DRL (B7-7) - Body ground

R-Y - Body ground

PCYL (B7-25) - Body ground

G-B - Body ground

DCYL (B7-26) - Body ground

G-W - Body ground

LP (B8-6) - Body ground

G-Y - Body ground

Rear room light position is DOOR

BCTY (B8-7) - Body ground

R-L - Body ground

Back door courtesy switch is ON (Door is opened)

Below 1 V

RLCY (B8-11) - Body ground

R-L - Body ground

RL door courtesy switch is ON (Door is opened)

RRCY (B8-12) - Body ground

R-G - Body ground

RR door courtesy switch is ON (Door is opened)

LCYL (B8-21) - Body ground

G-Y - Body ground

Ignition switch is ON

10 to 14 V

RCYL (B8-22) - Body ground

G-R - Body ground

DTCY (B8-23) - Body ground

R-Y - Body ground

Driver door courtesy switch is ON (Door is opened)

Below 1 V

PCTY (B8-24) - Body ground

R-B - Body ground

Passenger door courtesy switch is ON (Door is opened)

HEAD (B9-1) - Body ground

R-W - Body ground

Headlight control switch position is HEAD

HU (B9-2) - Body ground

R-Y - Body ground

Headlight dimmer switch position is Hi-Beam

A (B9-3) - Body ground

- Body ground)

G-O - Body ground

Headlight control switch position is AUTO

CLTS (B9-4) - Body ground

Y - Body ground

Automatic light communication circuit is ON

CLTB - Body ground

R - Body ground

Ignition switch is ON

10 to 14 V

HF (B9-7) - Body ground

R-B - Body ground

Headlight dimmer switch position is Hi-Flasher

Below 1 V

TAIL (B9-8) - Body ground

G-B - Body ground

Headlight control switch position is TAIL

DRLP (B9-12) - Body ground

G-Y - Body ground

Ignition switch is ON, Open door warning light is ON

Below 1.2 V

KSW (B9-14) - Body ground

R-B - Body ground

Key is inserted in key cylinder

Below 1 V

HF2 (B9-20) - Body ground

R-W - Body ground

Ignition switch is ON

10 to 14 V

CLTE (B9-21) - Body ground

BR - Body ground

Always

Below 1 V

2. CHECK SUB BODY ECU

Symbols (Terminal No.)

Wiring Color

Condition

Specified Condition

SIG (S26-3) - Body ground

B-W Body ground

Ignition switch ON

10 to 14 V

Ignition switch OFF

Below 1 V

BECU (S26-4) - Body ground

L-W Body ground

Always

10 to 14 V

L/FS (S26-6) - Body ground

B - Body ground

Ignition switch ON, light control switch TAIL or HEAD and taillight bulb burnt out

Below 1 V

Ignition switch ON, light control switch TAIL or HEAD and stop light bulb burnt out

BTIL (S26-7) - Body ground

- H-1)

G - Body ground

Light control switch TAIL or HEAD

TIL1(S26-8) - Body ground

- H-1)

Light control switch TAIL or HEAD

STP2 (S26-10) - Body ground

G-W - Body ground

Stop light switch OFF

10 to 14 V

Stop light switch ON (brake pedal free - depressed)

Below 1 V

STP1 (S26-11) - Body ground

Stop light switch OFF

10 to 14 V

Stop light switch ON (brake pedal free - depressed)

Below 1 V

STP1 (S26-12) - Body ground

Stop light switch OFF

10 to 14 V

Stop light switch ON (brake pedal free - depressed)

Below 1 V

BSTP (S26-13) - Body ground

Stop light switch OFF

10 to 14 V

Stop light switch ON (brake pedal free - depressed)

Below 1 V

TIL1 (S26-20) - Body ground

G - Body ground

Light control switch TAIL or HEAD

TIL2 (S26-21) - Body ground

Light control switch TAIL or HEAD

ILEN (S26-23) - Body ground

W-G - Body ground

Ignition switch ON, rheostat volume fully left side

Ignition switch ON, rheostat volume turn to right side

Pulse generation

SG (S26-24) - Body ground

BR - Body ground

Always

Below 1 V

GND (S26-25) - Body ground

W-B - Body ground