relay TOYOTA RAV4 2006 Service Manual PDF

LI–18LIGHTING – LIGHTING SYSTEM
LI
PROBLEM SYMPTOMS TABLE
(2006/01- )
HINT:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms are
listed in order of probability in the "Suspected Area" column
of the table. Check each symptom by checking the suspected
areas in the order they are listed. Replace parts as
necessary.
Headlight and taillight system
Symptom Suspected Area See page
"Low beam" does not comes on (One side).1. HEAD LL fuse, HEAD RL fuse LI-31
2. Bulb LI-31
3. Light control switch circuitLI-62
4. Headlight relay circuitLI-28
5. Instrument panel junction blockLI-19
"Low beam" does not come on (Both sides).1. HEAD LL fuse, HEAD RL fuse LI-31
2. Bulb LI-31
3. Light control switch circuitLI-62
4. Headlight relay circuitLI-28
5. Instrument panel junction blockLI-19
"High beam" does not come on (One side).1. HEAD LH fuse, HEAD RH fuse LI-41
2. HEAD RL fuse LI-31
3. Bulb LI-42
4. Light control switch circuitLI-62
5. Headlight (Hi-beam) circuitLI-37
6. Instrument panel junction blockLI-19
"High beam" does not come on (Both sides).1. HEAD LH fuse, HEAD RH fuse LI-41
2. HEAD RL fuse LI-31
3. Bulb LI-42
4. Light control switch circuitLI-62
5. Headlight (Hi-beam) circuitLI-37
6. Instrument panel junction blockLI-19
"Low beam" and "High beam" do not come on (One
side).1. HEAD LL fuse, HEAD RL fuse LI-31
2. HEAD LH fuse, HEAD RH fuse LI-41
3. Bulb (high) LI-42
4. Bulb (low) LI-31
5. Light control switch circuitLI-62
6. Headlight relay circuitLI-28
7. Headlight (Hi-beam) circuitLI-37
8. Instrument panel junction blockLI-19
"Low beam" and "High beam" do not come on (Both
sides).1. HEAD LL fuse, HEAD RL fuse LI-31
2. HEAD LH fuse, HEAD RH fuse LI-41
3. Bulb (high) LI-42
4. Bulb (low) LI-31
5. Light control switch circuitLI-62
6. Headlight relay circuitLI-28
7. Headlight (Hi-beam) circuitLI-37
8. Instrument panel junction blockLI-19
"Flash" does not come on (Low beam and Hi-beam are
normal).1. Light control switch circuitLI-62
2. Instrument panel junction blockLI-19

LIGHTING – LIGHTING SYSTEMLI–19
LI
Light auto turn off system
Fog light system
Turn signal and hazard warning system
Headlight is dark.1. Bulb -
2. Wire harness -
Taillight does not come on (All).1. TAIL fuse LI-87
2. Light control switch circuitLI-62
3. Taillight relay circuitLI-83
4. Instrument panel junction blockLI-19
Only one front side marker light comes on.1. Bulb LI-90
2. Wire harness LI-90
Only one taillight comes on.1. Rear combination lightLI-107
2. Wire harness LI-91
Only one rear side marker light comes on.1. Bulb LI-92
2. Wire harness LI-92
Daytime running light system does not operate.1. Light control switch circuitLI-62
2. CAN communication lineCA-60
3. Parking brake switch circuitPB-14
4. Daytime running light relay circuitLI-33
5. Instrument panel junction blockLI-19
Symptom Suspected Area See page
Light auto turn off system does not operate.1. Light control switch circuitLI-62
2. Ignition switchST-18
3. Door courtesy switch circuitLI-66
4. Instrument panel junction blockLI-19
Symptom Suspected Area See page
Front fog light does not come on with light control
switch in TAIL or HEAD position.1. FF FOG fuse LI-48
2. Front fog light relay LI-49
3. Light control switch circuitLI-62
4. Front fog light circuitLI-45
5. Instrument panel junction blockLI-19
Only one front fog light does not come on.1. Bulb LI-48
2. Wire harnessLI-45
Symptom Suspected Area See page
"Hazard" and "Turn" do not come on.1. HAZ fuse LI-59
2. ECU-IG2 fuse LI-53
3. Ignition switchST-18
4. Turn signal flasher relayLI-145
5. Wire harness -
Hazard warning light does not come on (Turn is
normal).1. Hazard warning switch LI-60
2. Wire harnessLI-56
Turn signal does not come on (Hazard is normal).1. Headlight dimmer switch (turn signal switch) LI-54
2. Wire harnessLI-50
Turn signal does not come on in one direction.1. Headlight dimmer switch (turn signal switch) LI-54
2. Wire harnessLI-50
Only one bulb does not come on.1. Bulb LI-56
2. Wire harnessLI-50 Symptom Suspected Area See page

LI–20LIGHTING – LIGHTING SYSTEM
LI
Stop light system
Illuminated entry system
Foot light system
Others
Symptom Suspected Area See page
Stop light does not operate (All).1. STOP fuse LI-26
2. BRK relayLI-151
3. Stop light switchBR-13
4. Wire harnessLI-24
Only one stop light does not operate.1. Rear combination lightLI-107
2. Wire harnessLI-24
Symptom Suspected Area See page
Illuminated entry of multiplex network body ECU
control does not operate (All).1. Ignition switchST-18
2. Door lock position circuitLI-70
3. Door courtesy switch circuitLI-66
4. Illumination circuitLI-75
5. Instrument panel junction blockLI-19
Symptom Suspected Area See page
Step light of body ECU control does not operate.1. Ignition switchST-18
2. Door lock position switchLI-70
3. Door courtesy switch circuitLI-66
4. Footwell light circuitLI-73
5. Instrument panel junction blockLI-19
Symptom Suspected Area See page
Vanity light does not operate.1. BulbLI-127
2. Vanity light switchLI-128
3. Wire harness -
Back-up light does not come on (All).1. GAUGE1 fuse LI-61
2. Park / neutral position switchAX-108
3. Wire harnessLI-59
Back door courtesy light does not come on.1. BulbLI-122
2. DOME fuse -
3. Back door courtesy switchLI-143
4. Wire harness -
Center console illumination does not come on.1. Center console lightLI-130
2. Wire harness -

LI–22LIGHTING – LIGHTING SYSTEM
LI(a) Measure the voltage of the connectors.
E125304E01
Symbols (Terminal No.) Wiring Color Terminal Description ConditionSpecified Condition
HRLY (E15-20) - GND1
(IE-17)BR - W-B Headlight Relay
(HEAD signal)Light control switch is OFF
or TAIL10 to 14 V
HRLY (E15-20) - GND1
(IE-17)BR - W-B Headlight Relay
(HEAD signal)Light control switch is
HEADBelow 1 V
DIM (E16-3) - GND1 (IE-
17)LG - W-B Daytime running light
Relay
(High beam signal)Light control switch is
HEADBelow 1 V
DIM (E16-3) - GND1 (IE-
17)LG - W-B Daytime running light
Relay
(High beam signal)Light control switch is
HEAD10 to 14 V
TAIL (E15-21) - GND1 (IE-
17)W - W-B Taillight relay
(TAIL signal)Light control switch is OFF Below 1 V
TAIL (E15-21) - GND1 (IE-
17)W - W-B Taillight relay
(TAIL signal)Light control switch is TAIL 10 to 14 V

LIGHTING – LIGHTING SYSTEMLI–23
LI
ILE (IK-2) - GND1 (IE-17) W - W-B Illumination signal • Room light switch
position is DOOR
•Door closed10 to 14 V
ILE (IK-2) - GND1 (IE-17) W - W-B Illumination signal • Room light switch
position is DOOR
• Door openBelow 1 V
FSPT (E15-2) - GND1 (IE-
17)V - W-B Foot light illumination
(Illumination signal)Foot light illumination OFF 10 to 14 V
FSPT (E15-2) - GND1 (IE-
17)V - W-B Foot light illumination
(Illumination signal)Foot light illumination ON Below 1 V
HU (IJ-4) - GND1 (IE-17) O - W-B Headlight dimmer switch
(HIGH signal)Light control switch is
HEAD
Headlight dimmer switch
is LOW10 to 14 V
HU (IJ-4) - GND1 (IE-17) O - W-B Headlight dimmer switch
(HIGH signal)Light control switch is
HEAD
Headlight dimmer switch
is HIGHBelow 1 V
LCTY (E15-8) - GND1 (IE-
17)SB - W-B Courtesy switch
(Rear left door circuit)Rear left door is closed Below 1 V
LCTY (E15-8) - GND1 (IE-
17)SB - W-B Courtesy switch
(Rear left door circuit)Rear left door is open 10 to 14 V
FFGO (E17-17) - GND1
(IE-17)G - W-B Front fog relay
(Front fog circuit)Front fog light is OFF 10 to 14 V
FFGO (E17-17) - GND1
(IE-17)G - W-B Front fog relay
(Front fog circuit)Front fog light is ON Below 1 V
DCTY (IA-21) - GND1 (IE-
17)W - W-B Courtesy switch
(Front left door circuit)Front left door is open Below 1 V
DCTY (IA-21) - GND1 (IE-
17)W - W-B Courtesy switch
(Front left door circuit)Front left door is closed 10 to 14 V
RRCY (ID-7) - GND1 (IE-
17)LG - W-B Courtesy switch
(Rear right door circuit)Rear right door is open Below 1 V
RRCY (ID-7) - GND1 (IE-
17)LG - W-B Courtesy switch
(Rear right door circuit)Rear right door is closed 10 to 14 V
HF (E15-22) - GND1 (IE-
17)R - W-B Headlight dimmer switch
(FLASH signal)Headlight dimmer switch
is OFF10 to 14 V
HF (E15-22) - GND1 (IE-
17)R - W-B Headlight dimmer switch
(FLASH signal)Headlight dimmer switch
is FLASHBelow 1 V
FFOG (E17-13) - GND1
(IE-17)GR - W-B Front fog light switch
(Front fog light signal)Light control switch is TAIL
Fog light switch is OFF10 to 14 V
FFOG (E17-13) - GND1
(IE-17)GR - W-B Front fog light switch
(Front fog light signal)Light control switch is TAIL
Fog light switch is ONBelow 1 V
PCTY (IC-14) - GND1 (IE-
17)BR - W-B Courtesy switch
(Front right door circuit)Front right door is open Below 1 V
PCTY (IC-14) - GND1 (IE-
17)BR - W-B Courtesy switch
(Front right door circuit)Front right door is closed 10 to 14 V
BCTY (IA-7) - GND1 (IE-
17)LG - W-B Courtesy switch
(Back door)Back door is open Below 1 V
BCTY (IA-7) - GND1 (IE-
17)LG - W-B Courtesy switch
(Back door)Back door is closed 10 to 14 V
LSWP (E15-10) - GND1
(IE-17)Y - W-B Door lock position switch
(Front right door)Front right door is in
unlock position10 to 14 V
LSWP (E15-10) - GND1
(IE-17)Y - W-B Door lock position switch
(Front right door)Front right door is in lock
positionBelow 1 V
LSWD (E15-25) - GND1
(IE-17)Y - W-B Door lock position switch
(Front left door)Front left door is in unlock
position10 to 14 V
LSWD (E15-25) - GND1
(IE-17)Y - W-B Door lock position switch
(Front left door)Front left door is in lock
positionBelow 1 V Symbols (Terminal No.) Wiring Color Terminal Description ConditionSpecified Condition

LIGHTING – LIGHTING SYSTEMLI–25
LI
2. PERFORM ACTIVE TEST
HINT:
Performing the intelligent tester's ACTIVE TEST allows
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 (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Perform the ACTIVE TEST by following the
directions on the tester screen.
Main body ECU
TAIL LIGHT SW Taillight switch signal / ON or OFFON: Light control switch is in TAIL
or HEAD position
OFF: Light control switch is in
OFF position-
RL DOR CTY SWRear door LH courtesy switch
signal / ON or OFFON: Left rear door is open
OFF Left rear door is closed-
BK DOR CTY SWBack door courtesy switch signal /
ON or OFFON: Back door is open
OFF: Back door is closed- ItemMeasurement Item/
Display (Range)Normal Condition Diagnostic Note
Item Test Details Diagnostic Note
HAZARD Turn hazard light flasher relay ON / OFF -
F FOG LIGHT RLY Turn front fog light relay ON / OFF -
HEAD LIGHT Turn headlight relay ON / OFF -
HEAD LIGHT (HI)Turn headlight dimmer relay (Headlight
dimmer switch HI position) ON / OFF-
TAIL LIGHT Turn taillight relay ON / OFF -
ILLUMI OUTPUTTest Details:
Turn interior light and key illumination ON /
OFF
Vehicle Condition:
Interior light switch is in DOOR position and
all doors are closed-
STEP LIGHT Foot light illumination ON / OFF -

LIGHTING – LIGHTING SYSTEMLI–27
LI
(a) Remove the rear combination light.
(b) Connect the positive (+) lead from the battery to terminal
4 and the negative (-) lead to terminal 1, then check that
the light comes on.
OK:
Light comes on.
NG
OK
(a) Remove the high mount stop light assembly.
(b) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, then check that
the light comes on.
OK:
Light comes on
NG
OK
(a) Remove the BRK relay from the engine room No. 1 relay
block.
(b) Measure the resistance of the relay.
Standard resistance
NG
OK
2INSPECT STOP LIGHT (REAR COMBINATION LIGHT)
B118217E09
REPLACE REAR COMBINATION LIGHT
3INSPECT REAR STOP LIGHT (HIGH MOUNT STOP LIGHT)
B118219E02
REPLACE HIGH MOUNT STOP LIGHT
ASSEMBLY
4INSPECT BRK RELAY
A087121E06
Tester Connection Specified Condition
3 - 4 Below 1
3 - 4 10 k or higher
(Battery voltage applied to terminals
1 and 2)
3 - 5 10 k
or higher
3 - 5 Below 1
(Battery voltage applied to terminals
1 and 2)
REPLACE BRK RELAY

LI–30LIGHTING – LIGHTING SYSTEM
LI
DESCRIPTION
When the light control switch, located on the headlight dimmer switch, is turned to the HEAD position, the
HEAD relay illuminates the headlights.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON and press the intelligent
tester main switch ON.
(c) Select the item below in the ACTIVE TEST and then
check the relay operation.
Headlight Relay Circuit
1PERFORM ACTIVE TEST BY INTELLIGENT TESTER (HEADLIGHT)
B118193E04

LIGHTING – LIGHTING SYSTEMLI–31
LI
Main body ECU
OK:
Headlight comes on
OK
NG
(a) Remove the HEAD LL fuse and HEAD RL fuse from the
engine room No. 2 relay block.
(b) Measure the resistance of the fuses.
Standard resistance:
Below 1
NG
OK
(a) Remove the headlight relay from the engine room No. 2
relay block.
(b) Measure the resistance of the relay.
Standard resistance
NG
OK
(a) Remove the headlight bulbs (LOW).
(b) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, then check that
the bulb illuminates.
OK:
Bulb illuminates.
NG
Item Test Details: Display (Range) Diagnostic Note
HEAD LIGHT Headlight Relay ON/OFF -
Go to step 7
2INSPECT FUSE (HEAD LL, HEAD RL)
REPLACE FUSE
3INSPECT HEADLIGHT RELAY (Marking: HEAD)
B112776E03
Tester Connection Specified Condition
3 - 5 10 k
or higher
3 - 5 Below 1
(Battery voltage applied to terminals
1 and 2)
REPLACE HEADLIGHT RELAY
4INSPECT BULB (HEADLIGHT BULB)
C128856E01
REPLACE BULB

LI–32LIGHTING – LIGHTING SYSTEM
LI
OK
(a) Disconnect the E15 main body ECU connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage
NG
OK
(a) Measure the voltage of the main body ECU.
Standard voltage
NG
OK
5CHECK WIRE HARNESS (MAIN BODY ECU - BATTERY)
E114538E17
Tester Connection Specified Condition
E15-20 (HRLY) - Body ground 10 to 14 V
REPAIR OR REPLACE HARNESS AND
CONNECTOR
6CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
B118233E03
Tester Connection Condition Specified Condition
E15-20 (HRLY) - Body
groundLight control switch
OFF10 to 14 V
E15-20 (HRLY) - Body
groundLight control switch
HEADBelow 1 V
REPLACE INSTRUMENT PANEL JUNCTION
BLOCK (MAIN BODY ECU)
REPAIR OR REPLACE HARNESS AND CONNECTOR (HEAD RELAY - HEADLIGHT BULB AND
BODY GROUND)