Toyota Camry 2007-2009 Service Manual - Lighting
Expression
LIGHTING – LIGHTING SYSTEM
LIGHTING SYSTEM
PRECAUTION
1. PRECAUTION FOR USING BATTERY DURING
INSPECTION
(a) While using the battery during inspection, do not
bring the positive and negative tester probes too
close to each other as a short circuit may occur.
2. PRECAUTION FOR HEADLIGHT BULB
REPLACEMENT
(a) If even a thin film of oil is left on the surface of the
halogen light, the bulb may be damaged because
the light will burn at a higher temperature.
(b) Handle any halogen light with great care. Dropping,
hitting or damaging the bulb, in any way, may result
in exploding and shattering because the internal
pressure is high.
(c) Always prepare a new bulb for immediate
replacement. While replacing the bulb, the lens may
attract dust and moisture if removed from the
vehicle for too long.
(d) Always use a bulb of the same wattage for
replacement.
(e) Firmly reinstall the socket after bulb replacement.
The lens may become cloudy or the light cavity may
fill with water through the gaps around the socket.
3. EXPRESSIONS OF IGNITION SWITCH
(a) The type of ignition switch used on this model differs
according to the specifications of the vehicle.
The expressions listed in the table below are used
in this section.
Switch Type Ignition Switch (position) Engine Switch (condition)
Ignition switch off LOCK Off
Ignition switch on (IG) ON On (IG)
Ignition switch on (ACC) ACC On (ACC)
Engine start START Start
LI–1
LI
LI–2
PARTS LOCATION
LIGHTING – LIGHTING SYSTEM
HEADLIGHT ASSEMBLY
- LOW BEAM HEADLIGHT
- HIGH BEAM HEADLIGHT
- FRONT SIDE MARKER LIGHT
- TURN SIGNAL AND PARKING LIGHT
GENERATOR
ENGINE ROOM J/B ASSEMBLY
- POWER DISTRIBUTOR
- H-LP (LL) FUSE
- H-LR (RL) FUSE
- H-LP (LH) FUSE
- H-LP (RH) FUSE
ECM
ENGINE ROOM R/B
- DOME FUSE
- HAZ FUSE
LI
FOG LIGHT ASSEMBLY
PARK / NEUTRAL POSITION SWITCH
(FOR U250E A/T)
PARK / NEUTRAL POSITION SWITCH
(FOR U660E A/T)
BACK-UP LIGHT SWITCH
(FOR M/T)
E121472E01
LIGHTING – LIGHTING SYSTEM
LI–3
WITHOUT SLIDING ROOF:
PERSONAL LIGHT ASSEMBLY
(OVERHEAD J/B)
- FRONT PERSONAL LIGHTS
- INTERIOR LIGHT
PERSONAL LIGHT ASSEMBLY (OVERHEAD J/B)
- FRONT PERSONAL LIGHTS
REAR ROOM LIGHT ASSEMBLY
- INTERIOR LIGHT
VANITY LIGHT
REAR ROOM LIGHT ASSEMBLY
- REAR PERSONAL LIGHTS
REAR COMBINATION LIGHT ASSEMBLY
- TAIL/STOP AND SIDE MARKER LIGHT
VANITY LIGHT
- TURN SIGNAL LIGHT
REAR LIGHT ASSEMBLY
- BACK-UP LIGHT
- TAILLIGHT
HIGH MOUNTED STOP LIGHT
LI
DOOR COURTESY LIGHT
LUGGAGE ROOM LIGHT
LICENSE PLATE LIGHT
E121473E01
LI–4
LIGHTING – LIGHTING SYSTEM
INSTRUMENT PANEL J/B
- MAIN BODY ECU
- IG1 RELAY
- ACC RELAY
- TAIL RELAY
- FOG RELAY
- TAIL FUSE
- AM1 FUSE
- STOP FUSE
- FR FOG FUSE
- GAUGE NO.1 FUSE
HEADLIGHT DIMMER SWITCH
- LIGHT CONTROL SWITCH
- DIMMER SWITCH
- TURN SIGNAL SWITCH
- FOG LIGHT SWITCH
TRANSPONDER KEY AMPRIFIER
IGNITION KEY CYLINDER LIGHT
-
AUTOMATIC LIGHT CONTROL SENSOR
(COMBINATION SWITCH)
GLOVE BOX LIGHT
LI
PARKING BRAKE SWITCH
HAZARD WARNING SWITCH
TURN SIGNAL FLASHER ASSEMBLY
DLC3
STOP LIGHT SWITCH
E121474E01
LIGHTING – LIGHTING SYSTEM
DOOR LOCK ASSEMBLY (FRONT RH)
LI–5
DOOR LOCK ASSEMBLY (FRONT LH)
- DOOR UNLOCK DETECTION SWITCH
MASTER SWITCH ASSEMBLY
- DOOR UNLOCK DETECTION SWITCH
DOOR LOCK ASSEMBLY (REAR RH)
- DOOR UNLOCK DETECTION SWITCH
FRONT DOOR COURTESY SWITCH
DOOR LOCK ASSEMBLY (REAR LH)
- DOOR UNLOCK DETECTION SWITCH
REAR DOOR COURTESY SWITCH
LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
-
BACK DOOR COURTESY SWITCH
LI
E121475E01
LI–6
LIGHTING – LIGHTING SYSTEM
SYSTEM DIAGRAM
Headlight Dimmer Switch Assembly
Automatic Light Control Sensor
Door Courtesy Switches
Door Unlock Detection Switches
Parking Brake Switch
Ignition Key Cylinder Light
Interior Light
Power Distributor
- HEAD Relay
- DRL Relay
Low Beam Headlights
High Beam Headlights
Main Body
ECU
TAIL Relay
LI
Ignition Switch or Engine Switch
ECM
DLC3
: CAN
Taillights
Parking Lights
License Plate Lights
Side Marker Lights
FOG Relay
Front Fog Lights
E121511E01
LIGHTING – LIGHTING SYSTEM
SYSTEM DESCRIPTION
1. MANUAL LIGHT CONTROL SYSTEM
This system functions if the lights such as the headlights
and taillights come on by manual operation of the light
control switch.
(a) The main body ECU controls this system based on
the signals listed below.
Input Output Lights that illuminate
• Taillights
Light control switch TAIL signal Taillight relay drive signal
Light control switch HEAD signal Headlight relay drive signal Low beam headlights
2. AUTOMATIC LIGHT CONTROL SYSTEM
When the light control switch is in the AUTO position, the
automatic light control sensor detects ambient light,
converts it into an electrical signal, and outputs it to the
main body ECU. The main body ECU automatically turns
the headlights and taillights on or off according to the
signal.
(a) The main body ECU controls this system based on
the signals listed below.
• License plate lights
• Side marker lights
• Parking lights
LI–7
Input Output Lights that illuminate
• Light control switch AUTO signal
• Automatic light control sensor signal
Input Output Lights that operate
• Door courtesy switch signal
• Ignition switch or engine switch signal
• Headlight relay drive signal
• Taillight relay drive signal
3. LIGHT AUTO TURN OFF SYSTEM
When the headlights and taillights are on through the
operation of the automatic light control system or through
the light control switch, if the ignition switch is turned off
and all doors are closed, this system continues to
illuminate the headlights and taillights for approximately
30 seconds, and then turns off the headlights and
taillights.
However, if the ignition switch is turned off and all doors
are locked, this system turns off the headlights and
taillights immediately.
(a) The main body ECU controls this system based on
the signals listed below.
• Headlight relay OFF demand
• Taillight relay OFF demand
• DRL relay OFF demand
• FOG light relay OFF demand
• Low beam headlights
• Taillights
• License plate lights
• Side marker lights
• Parking lights
LI
• Low beam headlights
• Taillights, license plate lights, parking
lights, and side marker lights
• High beam headlights
• Front fog lights
LI–8
Items Conditions
Ignition switch or engine switch On (IG)
Engine Running
Light control switch position
Parking brake switch Released (OFF)
Operation Condition
Fade in
Fade out immediately
Illuminate for approximately 15 seconds,
and then fade out
Fade out (Battery saving)
LIGHTING – LIGHTING SYSTEM
OFF, TAIL or AUTO position (if headlight-on control is not being performed by the automatic light
control)
When any of the following conditions is met, the interior light and ignition key cylinder light fade in.
• Any door is opened.
• Any door is unlocked when the ignition switch is off and all doors are closed.
• Ignition switch is turned from on (ACC) to off when all doors are closed.
When either of the following conditions is met, the interior light and ignition key cylinder light fade
out immediately.
• Ignition switch is turned from off to on (ACC or IG) when all doors are closed.
• All doors are locked when the ignition switch is off.
All doors are closed when the ignition switch is off.
When the following conditions are met, the interior light and ignition key cylinder light fade out.
• A key is not in the actuation area (with smart key system).
• A key is not inserted in the ignition key cylinder (without smart key system).
• There are no changes in the condition of the doors for 20 minutes.
4. DAYTIME RUNNING LIGHT SYSTEM
The daytime running light system is designed to
automatically illuminate the headlights (dimmed HI
beams), during the daytime to make the car more visible
to other vehicle.
(a) The main body ECU controls this system.
The daytime running light system starts operating
when all of the following conditions are met:
5. ILLUMINATED ENTRY SYSTEM
When a door is unlocked through a key or transmitter
operation, or if a door is opened, the illuminated entry
system turns on the interior light and the ignition key
cylinder light.
(a) The main body ECU controls this system. The
operation and condition of the illuminated entry
system are described below.
LI
Power Distributor (Engine Room J/B)
LIGHTING – LIGHTING SYSTEM
6. POWER DISTRIBUTOR
(a) The power distributor (engine room J/B assembly) is
installed in the engine room R/B.
(b) The HEAD relay and DRL relay are installed in the
power distributor (engine room J/B assembly).
(c) When a short circuit occurs between the power
distributor (engine room J/B assembly) and high
beam headlight bulbs, a fail-safe function operates.
(d) When the fail-safe function operates, the power
distributor stops the operation of the DRL relay.
E121471E02
LI–9
LI
LI–10
1
NEXT
2
NEXT
3
LIGHTING – LIGHTING SYSTEM
HOW TO PROCEED WITH
TROUBLESHOOTING
HINT:
• Use the following procedures to troubleshoot the lighting
system.
• *: Use the intelligent tester.
VEHICLE BROUGHT TO WORKSHOP
CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery
before proceeding.
NEXT
INSPECT CAN COMMUNICATION SYSTEM*
4
(a) Use the intelligent tester to check if the CAN
communication system is functioning normally.
Result
Result Proceed to
CAN communication system DTC is not output A
CAN communication system DTC is output B
LI
A
CHECK FOR DTC*
5
B
Go to step 8
Result
Result Proceed to
DTC is not output A
DTC is output B
B
A
Go to step 8
LIGHTING – LIGHTING SYSTEM
PROBLEM SYMPTOMS TABLE
6
Result
Result Proceed to
Fault is not listed in problem symptoms table A
Fault is listed in problem symptoms table B
LI–11
A
7
NEXT
8
NEXT
9
NEXT
B
OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Data List / Active Test (See page LI-21)
(b) Terminals of ECU (See page LI-16)
ADJUST, REPAIR OR REPLACE
CONFIRMATION TEST
Go to step 8
END
LI
LI–12
ILLUMINATED ENTRY:
Display Default Contents Setting
LIGHTING TIME 15 s
I/L ON / UNLOCK ON
I/L ON / ACC OFF ON
LIGHTING – LIGHTING SYSTEM
CUSTOMIZE PARAMETERS
HINT:
The followings are the possible items to be customized.
NOTICE:
• Before attempting to customize vehicle settings,
confirm whether it is possible to make the change that
the customer has requested.
• Be sure to record the current value before
customizing.
• In case of performing the troubleshooting, pay
attention because there is a possibility that the
function has been disabled by customizing. (Example:
In case of the symptom in which "The wireless
operation does not function", check that the wireless
operation has not been disabled by customizing, then
perform the troubleshooting.)
Changes the lighting time of the
interior light and ignition key
cylinder light.
Lights up the interior light and
ignition key cylinder light when a
door is unlocked.
Lights up the interior light and
ignition key cylinder light when
the ignition switch is turned from
on (ACC) to off
7.5 s / 15 s / 30 s
ON / OFF
ON / OFF
LIGHT CONTROL:
LIGHT OFF DELAY 30 s
DISP EX ON SEN NORMAL
LI
DISP EX OFF SEN NORMAL
Illustration *1
Ambient Brightness Level
Display Default Contents Setting
Keeps the headlights on for a
certain period of time after turning
OFF / 30 s / 60 s / 90 s
LIGHT 2 / LIGHT 1 / NORMAL /
DARK 1 / DARK 2
LIGHT 2 / LIGHT 1 / NORMAL /
DARK 1 / DARK 2
LIGHT 2 / LIGHT 1 / NORMAL /
DARK 1 / DARK 2
SENSITIVITY NORMAL
the ignition switch off and closing
all the doors with the headlights
on.
Adjusts the sensitivity of the
automatic light control system. *1
Changes the ambient brightness
level required to dim the clock
display illumination, etc. *1
Changes the ambient brightness
level required to cancel the
dimming of the clock display
illumination, etc.
HINT:
Sensitivity adjustment can hardly be confirmed. Check by
driving the customer's vehicle.
Dark Bright
Setting DARK2 DARK1 NORMAL LIGHT1 LIGHT2
LIGHTING – LIGHTING SYSTEM
1. Headlight system:
Symptom Suspected area See page
One side LO-beam headlight does not illuminate
Both left and right LO-beam headlights do not
illuminate
One side HI-beam headlight does not illuminate
Both left and right HI-beam headlights do not illuminate
"Flash" headlights do not illuminate
LO-beam headlights or HI-beam headlights do not go
off
LI–13
PROBLEM SYMPTOMS TABLE
1. H-LP RL fuse or H-LP LL fuse -
2. Bulb -
3. Harness or connector -
4. Power distributor (Engine room J/B) -
1. H-LP RL fuse and H-LP LL fuse -
2. Bulb -
3. Light control switch circuit LI-48
4. Headlight relay circuit LI-35
5. Main body ECU (Instrument panel J/B) -
1. H-LP RH fuse or H-LP LH fuse -
2. Bulb -
3. Harness or connector -
4. Power distributor (Engine room J/B) -
1. H-LP RH fuse and H-LP LH fuse -
2. Bulb -
3. Light control switch circuit LI-48
4. Headlight (HI-BEAM) circuit LI-39
5. Main body ECU (Instrument panel J/B) -
1. Light control switch circuit LI-48
2. Main body ECU (Instrument panel J/B) -
1. Headlight dimmer switch assembly LI-120
2. Power distributor (Engine room J/B) -
3. Harness or connector -
4. Main body ECU (Instrument panel J/B) -
2. Daytime running light system:
Symptom Suspected area See page
Day time running light system does not operate
3. Taillight system:
Symptom Suspected area See page
Front parking light does not illuminate
Rear taillight does not illuminate
License plate light does not illuminate
Front side marker light does not illuminate
Taillight system does not operate (Taillights, front side
marker lights, parking lights, and license plate lights do
not illuminate)
1. Light control switch circuit LI-48
2. Parking brake switch circuit LI-61
3. Power distributor (Engine room J/B) -
4. Main body ECU (Instrument panel J/B) -
5. ECM -
LI
1. Bulb -
2. Harness or connector -
1. Bulb -
2. Harness or connector -
1. Bulb -
2. Harness or connector -
1. Bulb -
2. Harness or connector -
1. TAIL fuse -
2. Taillight relay LI-141
3. Light control switch circuit LI-48
4. Taillight relay circuit LI-65
5. Main body ECU (Instrument panel J/B) -
LI–14
LIGHTING – LIGHTING SYSTEM
4. Stop light system:
Symptom Suspected area See page
Stop light system does not operate
One side stop light does not illuminate
Hi-mounted stop light does not illuminate
5. Front fog light system:
Symptom Suspected area See page
One side fog light does not illuminate
Both left and right fog lights do not illuminate (Taillight
system is normal)
1. Bulb -
2. Stop fuse -
3. Stop light switch LI-125
4. Harness or connector -
1. Bulb -
2. Harness or connector -
1. Bulb -
2. Harness or connector -
1. Bulb -
2. Harness or connector -
1. FR FOG fuse -
2. FR FOG relay LI-142
3. Light control switch circuit LI-48
4. Front fog light circuit LI-44
5. Main body ECU (Instrument panel J/B) -
6. Turn signal and hazard warning system:
Symptom Suspected area See page
Hazard warning lights do not operate (Turn signal
lights are normal)
Turn signal lights do not operate (Hazard warning
lights are normal)
"Hazard" and "Turn" do not operate
LI
Turn signal lights do not operate in one direction
Only one bulb does not operate
1. HAZ fuse -
2. Hazard warning signal switch LI-123
3. Clock assembly OT-4
4. Turn signal flasher assembly LI-138
5. Harness or connector -
1. GAUGE No. 1 fuse -
2. Headlight dimmer switch assembly (Turn signal switch) LI-120
3. Turn signal flasher assembly LI-138
4. Harness or connector -
1. HAZ fuse and GAUGE No. 1 fuse -
2. Bulb -
3. Turn signal flasher assembly LI-138
4. Hazard warning signal switch LI-123
5. Headlight dimmer switch assembly (Turn signal switch) LI-120
6. Clock assembly OT-4
7. Harness or connector -
1. Headlight dimmer switch assembly (Turn signal switch) LI-120
2. Turn signal flasher assembly LI-138
3. Harness or connector -
1. Bulb -
2. Harness or connector -
7. Buck-up light system:
Symptom Suspected area See page
One side back-up light does not illuminate
1. Bulb -
2. Harness or connector -
Symptom Suspected area See page
Both left and right back-up lights do not illuminate
8. Illuminated entry system:
Symptom Suspected area See page
Only interior light does not illuminate
Only ignition key cylinder light does not illuminate
Interior light and ignition key cylinder light do not
operate normally
LIGHTING – LIGHTING SYSTEM
1. Bulb -
2. GAUGE No. 1 fuse -
3. Buck-up light switch (for M/T) LI-127
4. Park/Neutral position switch (for U250E A/T) AX-129
5. Park/Neutral position switch (for U660E A/T) AX-175
6. Harness or connector -
1. Bulb -
2. Personal light assembly (with sliding roof) LI-105
3. Rear room light assembly (without sliding roof) LI-108
4. Harness or connector -
1. Transponder key amplifier (Ignition key cylinder light) LI-113
2. Harness or connector -
1. DOME fuse -
2. Personal light assembly LI-105
3. Rear room light assembly LI-108
4. Transponder key amplifier LI-113
5. Door courtesy switch circuit LI-52
6. Door lock position switch circuit LI-55
7. Ignition switch circuit LI-28
8. Interior light circuit LI-57
9. Main body ECU (Instrument panel J/B) -
LI–15
9. Vanity light system:
Symptom Suspected area See page
Vanity light does not illuminate
10. Luggage compartment light system:
Symptom Suspected area See page
Luggage compartment light does not illuminate
11. Glove box light system:
Symptom Suspected area See page
Glove box light does not illuminate
12. Door courtesy light system:
Symptom Suspected area See page
Door courtesy light does not illuminate
1. Bulb -
2. Vanity light assembly LI-116
3. Visor assembly (Vanity light switch) -
4. Harness or connector -
1. Luggage compartment light LI-111
2. Luggage compartment door lock assembly (Door courtesy
switch)
3. Harness or connector -
1. Bulb -
2. Glove box light assembly LI-115
3. Harness or connector -
1. Door courtesy light LI-109
2. Front door courtesy switch LI-129
3. Harness or connector -
LI-132
LI
LI–16
13. Personal light system:
Symptom Suspected area See page
Front personal lights do not illuminate
Rear personal lights do not illuminate
14. Automatic light control system:
Symptom Suspected area See page
Automatic light control system does not operate
normally
15. Light auto turn off system:
Symptom Suspected area See page
Light auto turn off system does not operate normally
LIGHTING – LIGHTING SYSTEM
1. Bulb -
2. Personal light assembly LI-105
3. Harness or connector -
1. Bulb -
2. Rear room light assembly LI-108
3. Harness or connector -
1. Light control switch circuit LI-48
2. Automatic light control sensor circuit LI-23
3. Main body ECU (Instrument panel J/B) -
1. Light control switch circuit LI-48
2. Door courtesy switch circuit LI-52
3. Main body ECU (Instrument panel J/B) -
16. Battery saving system:
Symptom Suspected area See page
Battery saving function does not operate
LI
1. Door courtesy switch circuit LI-52
2. Main body ECU (Instrument panel J/B) -
LIGHTING – LIGHTING SYSTEM
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)
LI–17
Front Side:
IL IF
IMIK
IC ID
IB
IA
IR
IP
IJ
IE
IN
IO
Back Side:
E7
IG II IH
E6 E8 E9
(a) Disconnect the IA, ID, IF and IM J/B connectors.
(b) Measure the voltage and resistance between the
specified terminals of the wire harness side
connectors and body ground.
Standard voltage
Symbols Wiring Color Terminal Description Condition Specified Condition
IA-1 - Body ground B - Body ground Battery power supply Always 10 to 14 V
LI
E111961E05
LI–18
Symbols Wiring Color Terminal Description Condition Specified Condition
ALTB (ID-16) - Body
ground
Standard resistance
Symbols Wiring Color Terminal Description Condition Specified Condition
GND1 (IF-10) - Body
ground
GND2 (IM-9) - Body
ground
Standard resistance
Symbols Wiring Color Terminal Description Condition Specified Condition
CLTE (E6-18) - Body
ground
LIGHTING – LIGHTING SYSTEM
W - Body ground Generator power supply Always 10 to 14 V
W-B - Body ground Ground Always Below 1 Ω
W-B - Body ground Ground Always Below 1 Ω
If the result is not as specified, there may be a
malfunction on the wire harness side.
(c) Reconnect the IA, ID, IF, and IM J/B connectors.
(d) Measure the resistance and voltage between the
specified terminals of the J/B connectors and body
ground.
BR - Body ground
Automatic light control
ground
Always Below 1 Ω
Standard voltage
Symbols Wiring Color Terminal Description Condition Specified Condition
PKB (IC-14) - Body
ground (*3)
HRLY (ID-3) - Body
ground
DRL (ID-9) - Body
ground
HU (IG-5) - Body ground LG - Body ground
ILE (II-10) - Body ground
(*2)
LI
PKB (IM-2) - Body
ground (*4)
LCTY (IO-7) - Body
ground
LSR (IP-5) - Body ground
(*2)
LSWL (IP-5) - Body
ground (*2)
HEAD (E6-17) - Body
ground
L - Body ground
P - Body ground
V - Body ground
BR - Body ground
Y - Body ground
LG - Body ground
GR - Body ground
GR - Body ground
P - Body ground
Parking brake switch
input
Headlight relay drive
output
High beam headlights
drive output
Dimmer switch HIGH
input
Interior light and igniti on
key cylinder light drive
output
Parking brake switch
input
Rear left door courtesy
switch input
Rear left door lock
position switch input
Rear left door lock
position switch input
Light control switch
HEAD input
Parking brake switch ON Below 1 V
Parking brake switch
OFF
Light control switch in
HEAD
Light control switch not
in HEAD
Dimmer switch in HIGH
or HIGH FLASH
Dimmer switch in LOW 10 to 14 V
Dimmer switch in HIGH
or HIGH FLASH
Dimmer switch in LOW Below 1 V
Interior light and igni tion
key cylinder light ON
Interior light and igni tion
key cylinder light OFF
Parking brake switch ON Below 1 V
Parking brake switch
OFF (Released)
Rear left door open Below 1 V
Rear left door closed 10 to 14 V
Rear left door locked 10 to 14 V
Rear left door unlocked Below 1 V
Rear left door locked 10 to 14 V
Rear left door unlocked Below 1 V
Light control switch in
HEAD
Light control switch not
in HEAD
10 to 14 V
Below 1 V
10 to 14 V
Below 1 V
10 to 14 V
Below 1 V
10 to 14 V
10 to 14 V
Below 1 V
10 to 14 V
Symbols Wiring Color Terminal Description Condition Specified Condition
CLTS (E6-19) - Body
ground
CLTB (E6-20) - Body
ground
PCTY (E6-21) - Body
ground
LGCY (E6-25) - Body
ground
LSWP (E6-27) - Body
ground
FFOG (E6-28) - Body
ground
LSWR (E6-5) - Body
ground (*1)
RCTY (E6-5) - Body
ground (*2)
RCTY (E6-7) - Body
ground (*1)
HF (E7-13) - Body
ground
SSW2 (E7-16) - Body
ground (*1)
SSW1 (E7-17) - Body
ground (*1)
A (E7-21) - Body ground G - Body ground
ACCD (E7-22) - Body
ground (*1)
TAIL (E7-23) - Body
ground
DCTY (E7-24) - Body
ground
IG1D (E7-3) - Body
ground (*1)
G - Body ground
B - Body ground
Y - Body ground
W - Body ground
LG - Body ground
V - Body ground
V - Body ground
GR - Body ground
GR - Body ground
R - Body ground
V - Body ground Engine switch input
L - Body ground Engine switch input
W - Body ground
B - Body ground
L - Body ground
P - Body ground
LIGHTING – LIGHTING SYSTEM
Automatic light control
sensor signal input
Automatic light control
sensor power supply
output
Passenger side door
courtesy switch input
Luggage courtesy
switch input
Passenger side door
lock position switch
input
Front fog light switch
input
Rear right door lock
position switch input
Rear right door courtesy
switch input
Rear right door courtesy
switch input
Dimmer switch HIGH
FLASH signal input
Light control switch
AUTO signal input
Accessory relay drive
output
Light control switch
TAIL signal input
Driver side door
courtesy switch input
Ignition 1 relay drive
output
Ignition switch off Below 1 V
Automatic light control
system operates
Ignition switch off Below 1 V
Ignition switch on (IG)
and light control switch
in AUTO
Passenger side door
open
Passenger side door
closed
Luggage compartment
door open
Luggage compartment
door closed
Passenger side door
locked
Passenger side door
unlocked
Front fog light switch
ON
Front fog light switch
OFF
Rear right door locked 10 to 14 V
Rear right door
unlocked
Rear right door open Below 1 V
Rear right door closed 10 to 14 V
Rear right door open Below 1 V
Rear right door closed 10 to 14 V
Dimmer switch in HIGH
FLASH position
Dimmer switch not in
HIGH FLASH position
Engine switch not
pushed
Engine switch pushed Below 1 V
Engine switch not
pushed
Engine switch pushed Below 1 V
Light control switch in
AUTO
Light control switch not
in AUTO
Ignition switch on (ACC) Below 1 V
Ignition switch off 10 to 14 V
Light control switch in
TAIL or HEAD
Light control switch in
neither TAIL nor HEAD
Driver side door open Below 1 V
Driver side door closed 10 to 14 V
Ignition switch on (IG) Below 1 V
Ignition switch off 10 to 14 V
LI–19
Pulse generation
(See waveform 1)
10 to 14 V
Below 1 V
10 to 14 V
Below 1 V
10 to 14 V
10 to 14 V
Below 1 V
Below 1 V
10 to 14 V
Below 1 V
Below 1 V
10 to 14 V
10 to 14 V
10 to 14 V
LI
Below 1 V
10 to 14 V
Below 1 V
10 to 14 V
LI–20
Symbols Wiring Color Terminal Description Condition Specified Condition
FFGO (E7-4) - Body
ground
LSWD (E7-9) - Body
ground
CANH (E8-5) - Body
ground
CANL (E8-6) - Body
ground
R - Body ground
L - Body ground
R - Body ground
W - Body ground
LIGHTING – LIGHTING SYSTEM
Light control switch in
Front fog light relay
drive output
Driver side door lock
position switch input
Control system CAN
communication
Control system CAN
communication
HEAD and front fog light
switch ON
Front fog light switch
OFF
Driver side door locked 10 to 14 V
Driver side door
unlocked
Ignition switch on (IG) Pulse generation
Ignition switch off Below 1 V
Ignition switch on (IG) Pulse generation
Ignition switch off Below 1 V
If the result is not as specified, the main body ECU
(Instrument panel J/B) may have a malfunction.
HINT:
*1: with smart key system
*2: without smart key system
*3: Pedal type parking brake
*4: Lever type parking brake
Below 1 V
10 to 14 V
Below 1 V
LI
(1) Waveform 1
Item Contents
Tool setting 5 V/DIV., 5 ms./DIV.
A
GND
HINT:
If the ambient light becomes brighter, width A
becomes narrower.
B113714E01
CG
SG
CANH
SIL
LIGHTING – LIGHTING SYSTEM
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Lighting system data and the Diagnostic Trouble
Codes (DTCs) can be read from the Data Link
Connector 3 (DLC3) of the vehicle. When the
system seems to be malfunctioning, use the
intelligent tester to check for malfunctions and
perform repairs.
2. CHECK DLC3
(a) The ECU uses ISO 15765-4 for communication.
The terminal arrangement of the DLC3 complies
with SAE J1962 and matches the ISO 15765-4
format.
LI–21
CANL
Symbols (Terminal No.) Terminal Description Condition Specified Condition
SIL (7) - SG (5) Bus "+" line During transmission Pulse generation
CG (4) - Body ground Chassis ground Always Below 1 Ω
SG (5) - Body ground Signal ground Always Below 1 Ω
BAT (16) - Body ground Battery positive Always 11 to 14 V
CANH (6) - CANL (14) CAN bus line Ignition switch off* 54 to 69 Ω
CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch off* 200 Ω or higher
CANL (14) - CG (4) LOW-level CAN bus line Ignition switch off* 200 Ω or higher
CANH (6) - BAT (16) HIGH-level CAN bus line Ignition switch off* 6 kΩ or higher
CANL (14) - BAT (16) LOW-level CAN bus line Ignition switch off* 6 kΩ or higher
BAT
H100769E16
NOTICE:
*Before measuring the resistance, leave the
vehicle as is for at least 1minute and do not
operate the ignition switch, any other switches,
or the doors.
If the result is not as specified, the DLC3 may have
a malfunction. Repair or replace the harness and
connector.
LI
LI–22
LIGHTING – LIGHTING SYSTEM
Intelligent Tester
DLC3
Intelligent Tester
DLC3
CAN VIM
CAN VIM
C131977E10
C131977E10
(b) Connect the cable of the intelligent tester to the
DLC3, turn the ignition switch on (IG) and attempt to
use the tester. If the display indicates that a
communication error has occurred, there is a
problem either with the vehicle or with the tester.
HINT:
• If communication is normal when the tester is
connected to another vehicle, inspect the DLC3
of the original vehicle.
• If communication is still not possible when the
tester is connected to another vehicle, the
problem may be in the tester itself. Consult the
Service Department listed in the tester's
instruction manual.
3. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the
battery before proceeding.
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch on (IG).
(c) Read the DTCs by following the directions on the
tester screen.
HINT:
Please refer to the intelligent tester operator's
manual for further details.
2. CLEAR DTC
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch on (IG).
(c) Erase the DTCs by following the directions on the
tester screen.
HINT:
Please refer to the intelligent tester operator's
manual for further details.
LI
MAIN BODY (MAIN BODY ECU):
Item
ACC SW
IG SW
D DOR CTY SW
P DOR CTY SW
RR DOR CTY SW
RL DOR CTY SW
D LOCK POS SW
P LOCK POS SW
RR LOCK POS SW
(with Smart Key System)
RL. LOCK POS SW
(with Smart Key System)
DIMMER SW
HIGH FLASHER SW
F FOG LIGHT SW
AUTO LIGHT SW
HEAD LIGHT SW
TAIL LIGHT SW
Measurement Item / Display
Ignition switch or engine switch
ACC signal / ON or OFF
Ignition switch or engine switch
IG signal / ON or OFF
Driver side door courtesy switch
signal / ON or OFF
Passenger side door courtesy
switch signal / ON or OFF
Rear right door courtesy switch
signal / ON or OFF
Rear left door courtesy switch
signal / ON or OFF
Driver side door lock position
switch signal / ON or OFF
Passenger side door lock position
switch signal / ON or OFF
Rear right door lock position
switch signal / ON or OFF
Rear left door lock position switch
signal / ON or OFF
Dimmer switch HIGH signal / ON
or OFF
Dimmer switch HIGH FLASH
signal / ON or OFF
Fog light switch signal / ON or
OFF
Light control switch AUTO signal /
ON or OFF
Light control switch HEAD signal /
ON or OFF
Light control switch TAIL signal /
ON or OFF
LIGHTING – LIGHTING SYSTEM
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the intelligent tester DATA LIST allows switch,
actuator and other item values to be read without
removing any parts. Reading the DATA LIST early in
troubleshooting is one way to save time.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch on (IG).
(c) Read the DATA LIST according to the display on the
tester.
(Range)
Normal Condition Diagnostic Note
ON: Ignition switch on (ACC or
IG)
OFF: Ignition switch off
ON: Ignition switch on (IG)
OFF: Ignition switch off
ON: Driver side door is open
OFF: Driver side door is closed
ON: Front passenger side door is
open
OFF: Front passenger side door
is closed
ON: Rear right door is open
OFF: Rear right door is closed
ON: Rear left door is open
OFF: Rear left door is closed
ON: Driver side door is unlocked
OFF: Driver side door is locked
ON: Front passenger side door is
unlocked
OFF: Front passenger side door
is locked
ON: Rear right door is unlocked
OFF: Rear right door is locked
ON: Rear left door is unlocked
OFF: Rear left door is locked
ON: Dimmer switch in HIGH or
HIGH FLASH
OFF: Dimmer switch in LOW
ON: Dimmer switch in HIGH
FLASH
OFF: Dimmer switch not in HIGH
FLASH
ON: Fog light switch ON
OFF: Fog light switch OFF
ON: Light control switch in AUTO
OFF: Light control switch not in
AUTO
ON: Light control switch in HEAD
OFF: Light control switch not in
HEAD
ON: Light control switch in TAIL or
HEAD
OFF: Light control switch not in
TAIL or HEAD
LI–23
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
LI
LI–24
LIGHTING – LIGHTING SYSTEM
Item
ILLUMINATE RATE
PARKING BRAKE SW
Measurement Item / Display
Illumination rate information / 0
ms. to 99.99 ms.
Parking brake switch signal / ON
or OFF
MAIN BODY (MAIN BODY ECU):
Item Test Details Diagnostic Note
F FOG LIGHT RLY Front fog light relay ON / OFF -
HEAD LIGHT Headlight relay ON / OFF -
HEAD LIGHT (HI) High beam headlights ON / OFF -
TAIL LIGHT Taillight ON / OFF -
DIMMER SIG Dimmer signal ON / OFF -
ILLUMI OUTPUT
(Range)
Normal Condition Diagnostic Note
0.8 ms. to 22.0 ms. (Value is
output according to ambient
illuminance)
ON: Parking brake switch is ON
OFF: Parking brake switch is OFF
2. PERFORM ACTIVE TEST
HINT:
Performing the intelligent tester ACTIVE TEST allows a
relay, VSV, actuator, and other items to be operated
without removing any parts. Performing the ACTIVE
TEST early in troubleshooting is one way to save time.
The DATA LIST can be displayed during the ACTIVE
TEST.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch on (IG).
(c) Perform the ACTIVE TEST according to the display
on the tester.
Interior light and ignition key cylinder light ON
/ OFF (Interior light switch in DOOR position
and all doors are closed)
-
-
-
LI
LIGHTING SYSTEM:
DTC No. Detection Item Suspected Area See page
B1244 Light Sensor Circuit Malfunction 1. Automatic light control sensor
LIGHTING – LIGHTING SYSTEM
DIAGNOSTIC TROUBLE CODE CHART
2. Harness or connector
3. Main body ECU (Instrument
panel J/B)
LI–25
LI-23
LI
LI–26
LIGHTING – LIGHTING SYSTEM
DTC B1244 Light Sensor Circuit Malfunction
DESCRIPTION
The automatic light control sensor detects ambient light, converts it into an elect rical signal, and output s it
to the main body ECU. The main body ECU turns on or off the headlights and taillights according to the
signal.
DTC No. DTC Detecting Condition Trouble Area
• Automatic light control sensor
• Harness or connector
• Main body ECU (Instrument panel J/B)
B1244
WIRING DIAGRAM
• Malfunction in automatic light control sensor
• Open or short in automatic light control sensor
circuit
E11
Automatic Light Control Sensor
CLTB
CLTS
CLTE
*1: Manual A/C *2: Automatic A/C
INSPECTION PROCEDURE
LI
3 (*1)
6 (*2)
4 (*1)
5 (*2)
6 (*1)
3 (*2)
E6
Main Body ECU
CLTB
20
CLTS
19
CLTE
18
E124321E04
READ VALUE OF INTELLIGENT TESTER
1
MAIN BODY (MAIN BODY ECU):
Item
ILLUMINATE RATE
Measurement Item / Display
Illumination rate information / 0
ms to 99.99 ms
(Range)
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch on (IG) and turn the intelligent
tester main switch on.
(c) Select the item below in the DATA LIST, and read the
display on the intelligent tester.
Normal Condition Diagnostic Note
0.8 ms to 22.0 ms (Value is output
according to ambient illuminance)
-
OK:
Normal condition listed above is displayed.
LIGHTING – LIGHTING SYSTEM
LI–27
OK
REPLACE INSTRUMENT PANEL JUNCTION
BLOCK ASSEMBLY
NG
CHECK VEHICLE CONDITION
2
Result
Vehicle Condition Proceed to
Manual Air Conditioning System A
Automatic Air Conditioning System B
B
Go to step 6
A
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - AUTOMATIC LIGHT CONTROL
3
SENSOR)
(a) Disconnect the E11 automatic light control sensor
Wire Harness Side:
connector.
(b) Disconnect the E6 main body ECU connector.
Automatic Light Control Sensor
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance
Tester Connection Condition
E6-18 (CLTE) - E11-6 (CLTE) Always Below 1 Ω
E6-19 (CLTS) - E11-4 (CLTS) Always Below 1 Ω
E6-20 (CLTB) - E11-3 (CLTB) Always Below 1 Ω
E6-18 (CLTE) - Body ground Always 10 kΩ or higher
E6-19 (CLTS) - Body ground Always 10 kΩ or higher
E6-20 (CLTB) - Body ground Always 10 kΩ or higher
E6
E11
CLTB
CLTS
CLTE
Main Body ECU
Specified
Condition
CLTE
NG
CLTB
CLTS
E121476E03
REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
INSPECT MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
4
(a) Reconnect the main body ECU connector.
LI
LI–28
LIGHTING – LIGHTING SYSTEM
Wire Harness Side:
Automatic Light Control Sensor
E11
CLTB
OK
INSPECT AUTOMATIC LIGHT CONTROL SENSOR
5
Automatic Light Control Sensor
CLTS
CLTE
B109993E15
(b) Measure the voltage and resistance according to the
value(s) in the table below.
Standard voltage
Tester Connection Condition Specified Condition
E11-3 (CLTB) - E11-6
(CLTE)
Ignition switch off Below 1 V
Ignition switch on (IG) 10 to 14 V
Standard resistance
Tester Connection Condition
E11-6 (CLTE) - Body ground Always Below 1 Ω
NG
REPLACE INSTRUMENT PANEL JUNCTION
Specified
Condition
BLOCK ASSEMBLY
(a) Reconnect the automatic light control sensor connector.
(b) Connect an oscilloscope to the automatic light control
sensor connector.
LI
OK
E11
CLTE
CLTS
E121468E03
(c) Check the waveform.
OK
Tester
Connection
A
GND
E11-6 (CLTE) -
E11-4 (CLTS)
Tool Setting Condition
Ignition switch
5 V/DIV., 5 ms./
DIV.
on (IG), light
control switch in
AUTO
Specified
Condition
Correct
waveform is as
shown
HINT:
B113714E01
If the ambient light becomes brighter, width A becomes
narrower.
NG
REPLACE AUTOMATIC LIGHT CONTROL
SENSOR
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
LIGHTING – LIGHTING SYSTEM
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - AUTOMATIC LIGHT CONTROL
6
SENSOR)
(a) Disconnect the E11 automatic light control sensor
Wire Harness Side:
connector.
(b) Disconnect the E6 main body ECU connector.
Automatic Light Control Sensor
E11
CLTE
CLTS
Main Body ECU
E6
CLTB
Standard resistance
Tester Connection Condition
E6-18 (CLTE) - E11-3 (CLTE) Always Below 1 Ω
E6-19 (CLTS) - E11-5 (CLTS) Always Below 1 Ω
E6-20 (CLTB) - E11-6 (CLTB) Always Below 1 Ω
E6-18 (CLTE) - Body ground Always 10 kΩ or higher
E6-19 (CLTS) - Body ground Always 10 kΩ or higher
E6-20 (CLTB) - Body ground Always 10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR
CONNECTOR
LI–29
Specified
Condition
CLTE
OK
INSPECT MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY )
7
Wire Harness Side:
Automatic Light Control Sensor
E11
CLTS
CLTE
CLTB
CLTB
E121476E04
B109993E16
(a) Reconnect the main body ECU connector.
(b) Measure the voltage and resistance according to the
value(s) in the table below.
Standard voltage
Tester Connection Condition Specified Condition
E11-6 (CLTB) - E11-3
(CLTE)
E11-6 (CLTB) - E11-3
(CLTE)
Ignition switch off Below 1 V
Ignition switch on (IG) 10 to 14 V
Standard resistance
Tester Connection Condition
E11-3 (CLTE) - Body ground Always Below 1 Ω
Specified
Condition
LI
OK
NG
REPLACE INSTRUMENT PANEL JUNCTION
BLOCK ASSEMBLY
LI–30
8
LIGHTING – LIGHTING SYSTEM
INSPECT AUTOMATIC LIGHT CONTROL SENSOR
(a) Reconnect the automatic light control sensor connector.
Automatic Light Control Sensor
(b) Connect an oscilloscope to the automatic light control
sensor connector.
OK
E11
CLTE
CLTS
E121468E04
(c) Check the waveform.
OK
Tester
Connection
A
GND
E11-3 (CLTE) -
E11-5 (CLTS)
Tool Setting Condition
Ignition switch
5 V/DIV., 5 ms./
DIV.
on (IG), light
control switch in
AUTO
Specified
Condition
Correct
waveform is as
shown
HINT:
B113714E01
If the ambient light becomes brighter, width A becomes
narrower.
NG
REPLACE AUTOMATIC LIGHT CONTROL
SENSOR
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
LI
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