CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY
ECU)
(a) Remove the main body ECU (multiplex network body ECU) from the driver side
junction block assembly.
(b) Connect the driver side junction block assembly connectors.
(c) Measure the voltage and resistance according to the value(s) in the table
below.
(d) Install the main body ECU (multiplex network body ECU).
(e) Measure the voltage and check for pulses according to the value(s) in the
table below.
|
Terminal No. (Symbol)
|
Wiring Color
|
Terminal Description
|
Condition
|
Specified Condition
|
| *1: for LED Headlight
*2: w/ Fog Light
*3:w/ Automatic High Beam System
|
|
3H-31 (HRLY) - Body ground
|
B - Body ground
|
H-LP LO relay drive output
|
Light control switch in head position
|
Below 1 V
|
|
Light control switch not in head position
|
11 to 14 V
|
|
J165-1 (DIM) - Body ground
|
R - Body ground
|
DIMMER relay drive output
|
Headlight dimmer switch in high or high flash position
|
Below 1 V
|
|
Headlight dimmer switch not in high or high flash position
|
11 to 14 V
|
|
J165-3 (RLEW) - Body ground*1
|
L - Body ground
|
Light control ECU RH signal input
|
Ignition switch ON, light control switch in head position
|
Pulse generation
|
|
Ignition switch ON, light control switch off
|
11 to 14 V
|
|
J165-16 (LLEW) - Body ground*1
|
W - Body ground
|
Light control ECU LH signal input
|
Ignition switch ON, light control switch in head position
|
Pulse generation
|
|
Ignition switch ON, light control switch off
|
11 to 14 V
|
|
3H-28 (DRL) - Body ground
|
P - Body ground
|
DRL relay drive output
|
Daytime running light on
|
Below 1 V
|
|
Daytime running light off
|
11 to 14 V
|
|
3H-25 (FFGO) - Body ground*2
|
GR - Body ground
|
FGO FR relay drive output
|
Light control switch in tail or head position, fog light switch in front
position
|
Below 1 V
|
|
Light control switch in tail or head position, fog light switch off
|
11 to 14 V
|
|
3H-32 - Body ground
|
V - Body ground
|
Front side marker lights, taillights, license plate lights drive output
|
Light control switch off
|
Below 1 V
|
|
Light control switch in tail or head position
|
11 to 14 V
|
|
J165-10 (HF) - Body ground
|
GR - Body ground
|
Headlight dimmer switch high flash position signal input
|
Headlight dimmer switch in high position
|
Below 1 V
|
|
Headlight dimmer switch not in high position
|
11 to 14 V
|
|
J165-24 (HU) - Body ground
|
V - Body ground
|
Headlight dimmer switch high position signal input
|
Headlight dimmer switch in high flash position
|
Below 1 V
|
|
Headlight dimmer switch not in high flash position
|
11 to 14 V
|
|
J165-8 (A) - Body ground
|
V - Body ground
|
Light control switch Auto position signal input
|
Light control switch in Auto position
|
Below 1 V
|
|
Light control switch not in Auto position
|
11 to 14 V
|
|
J165-12 (HEAD) - Body ground
|
G - Body ground
|
Light control switch head position input
|
Light control switch in head position
|
Below 1 V
|
|
Light control switch not in head position
|
11 to 14 V
|
|
J165-22 (TAIL) - Body ground
|
SB - Body ground
|
Light control switch tail position input
|
Light control switch in tail position
|
Below 1 V
|
|
Light control switch not in tail position
|
11 to 14 V
|
|
J165-26 (FFOG) - Body ground*2
|
R - Body ground
|
Fog light switch front position input
|
Fog light switch in front position
|
Below 1 V
|
|
Fog light switch off
|
11 to 14 V
|
|
J165-19 (CLTB) - J165-21 (CLTE)
|
B - R
|
Automatic light control sensor power supply output
|
Ignition switch off
|
Below 1 V
|
|
Ignition switch ON
|
11 to 14 V
|
|
J165-20 (CLTS) - Body ground
|
G - Body ground
|
Automatic light control sensor signal input
|
Ignition switch off
|
Below 1 V
|
|
Automatic light control system operating
|
Pulse generation
(See waveform 1)
|
|
3H-18 (PKB) - Body ground
|
BE - Body ground
|
Parking brake switch input
|
Parking brake switch on
|
Below 1 V
|
|
Parking brake switch off
|
11 to 14 V
|
|
J165-17 (AHBI) - Body ground*3
|
V - Body ground
|
Auto high beam main switch signal input
|
Auto high beam main switch on
|
Below 1 V
|
|
Auto high beam main switch off
|
11 to 14 V
|
|
J165-23 (CGSW) - Body ground
|
B - Body ground
|
Deck light switch assembly signal
|
Deck light switch assembly on
|
Below 1 V
|
|
Deck light switch assembly DOOR or off
|
11 to 14 V
|
|
3I-28 (RFGO) - Body ground
|
LG - Body ground
|
Deck light switch assembly signal
|
Deck light switch assembly off
|
Below 1 V
|
|
Deck light switch assembly on or DOOR
|
11 to 14 V
|
|
J165-6 (FLCY) - Body ground
|
GR - Body ground
|
Front door courtesy light switch assembly LH signal
|
Front door LH open
|
Below 1 V
|
|
Front door LH closed
|
Pulse generation
|
|
J165-27 (FRCY) - Body ground
|
W - Body ground
|
Front door courtesy light switch assembly RH signal
|
Front door RH open
|
Below 1 V
|
|
Front door RH closed
|
Pulse generation
|
|
3J-31 (RCTY) - Body ground
|
L - Body ground
|
Rear door courtesy light switch assembly RH signal
|
Rear door RH open
|
Below 1 V
|
|
Rear door RH closed
|
Pulse generation
|
|
3K-24 (LCTY) - Body ground
|
R - Body ground
|
Rear door courtesy light switch assembly LH signal
|
Rear door LH open
|
Below 1 V
|
|
Rear door LH closed
|
Pulse generation
|
|
3I-12 (LSFR) - Body ground
|
V - Body ground
|
Front door unlock detection switch RH signal
|
Front door RH unlocked
|
Below 1 V
|
|
Ignition switch off, all doors closed and front door RH locked
|
Pulse generation
|
|
3I-13 (LSFL) - Body ground
|
L - Body ground
|
Front door unlock detection switch LH signal
|
Front door LH unlocked
|
Below 1 V
|
|
Ignition switch off, all doors closed and front door LH locked
|
Pulse generation
|
|
3I-14 (LSWL) - Body ground
|
R - Body ground
|
Rear door unlock detection switch signal
|
Rear door LH or RH unlocked
|
Below 1 V
|
|
Ignition switch off, all doors closed, rear door LH and RH locked
|
Pulse generation
|
|
3I-29 (ILE) - Body ground
|
W - Body ground
|
Interior lights drive output
|
Interior lights off (when operated by illuminated entry system)
|
11 to 14 V
|
|
Interior lights on (when operated by illuminated entry system)
|
Below 1 V
|
|
3I-9 - Body ground
|
B - Body ground
|
Interior light power supply
|
DOME CUT relay off
|
11 to 14 V
|
|
DOME CUT relay on
|
Below 1 V
|
The communication waveform changes according to the surrounding brightness.
