Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 284
LIGHTING – LIGHTING SYSTEM
LI–33
LI
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
LI–34
LIGHTING – LIGHTING SYSTEM
LI
DESCRIPTION
The turn signal flasher relay turns on when it receives signals from the headlight dimmer switch integrated
with the turn signal switch, causing the turn signal lights to flash.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) When the turn signal light switch is operated, check that
the appropriate turn signal light flashes.
Turn Signal Light Circuit
1
CHECK OPERATION (TURN SIGNAL LIGHT)
Headlight Dimmer Switch
Turn
Signal
Switch
RH
LH
E
TL
TR
E
TL
TR
Turn Signal Flasher Relay
E
ER
EL
B
IG
IG1
TRN-HAZ
LR
LL
Front Turn
Signal light
Bulb RH
Rear Turn
Signal Light
Bulb RH
Front Turn
Signal light
Bulb LH
Rear Turn
Signal Light
Bulb LH
Battery
To Ignition
Switch
B136085E01
LIGHTING – LIGHTING SYSTEM
LI–35
LI
Result
B
C
A
(a) Remove the IG1 fuse from the main body ECU.
(b) Remove the TRN-HAZ fuse from the engine room R/B
No.2.
(c) Measure the resistance.
Standard resistance:
Below 1
Ω
(d) Reinstall the IG1 and TRN-HAZ fuses.
NG
OK
(a) Measure the voltage.
Standard voltage
NG
OK
Condition
Proceed to
No lights flash
A
Front turn signal light (LH or RH) does not flash
B
Rear turn signal light (LH or RH) does not flash
C
Go to step 8
Go to step 10
2
INSPECT FUSE (IG1, TRN-HAZ)
REPLACE FUSE
3
INSPECT TURN SIGNAL FLASHER RELAY
Connector Back Side:
LR
LL
Turn Signal Flasher Relay Connector
EL
ER
E101506E03
Tester Connection
Condition
Specified Condition
2 (LR) - Body ground
Turn signal switch
(right turn) OFF
→ ON
0 V
→ 11 to 14 V (60 to
120 times per minute)
3 (LL) - Body ground
Turn signal switch (left
turn) OFF
→ ON
0 V
→ 11 to 14 V (60 to
120 times per minute)
5 (EL) - Body ground
Turn signal switch (left
turn) OFF
→ ON
11 to 14 V
→ 0 V
6 (ER) - Body ground
Turn signal switch
(right turn) OFF
→ ON
11 to 14 V
→ 0 V
REPLACE TURN SIGNAL FLASHER RELAY
LI–36
LIGHTING – LIGHTING SYSTEM
LI
(a) Disconnect the E9 turn signal flasher relay connector.
(b) Measure the voltage.
Standard voltage
(c) Reconnect the turn signal flasher relay connector.
NG
OK
(a) Remove the headlight dimmer switch.
(b) Inspect the turn signal light switch.
(c) Measure the resistance.
Standard resistance
(d) Reinstall the headlight dimmer switch.
NG
OK
4
CHECK HARNESS AND CONNECTOR (FUSE - TURN SIGNAL FLASHER RELAY)
Turn Signal Flasher Relay Connector
Wire Harness Side:
IG
B
Front View
E9
E120966E07
Tester Connection
Condition
Specified Condition
E9-1(IG) - Body ground
Ignition switch ON
11 to 14 V
E9-4 (B) - Body ground
Always
11 to 14 V
REPAIR OR REPLACE HARNESS OR
CONNECTOR
5
INSPECT HEADLIGHT DIMMER SWITCH
Component Side:
TL
TR
TB
Headlight Dimmer Switch
B136086E01
Tester Connection
Condition
Specified Condition
2 (TB) - 3 (TR)
Right
Below 1
Ω
2 (TB) - 3 (TR)
Neutral
10 k
Ω or higher
2 (TB) - 1 (TL)
Left
Below 1
Ω
2 (TB) - 1 (TL)
Neutral
10 k
Ω or higher
REPLACE HEADLIGHT DIMMER SWITCH
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