Lexus ES300 (1997 year). Manual — part 176
Z19394
E/G Room Junction Block
HAZARD Fuse
Hazard Warning Switch
Ignition Switch
Combination Switch
Turn Signal Switch
Tum Signal Light
Instrument Panel
Junction Block
TURN Fuse
Tum Signal Light
BE053–01
–
BODY ELECTRICAL
TURN SIGNAL AND HAZARD WARNING SYSTEM
BE–39
1423
1997 LEXUS ES300 (RM511U)
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION
BE054–01
N21576
Right
Left
3
2
1
N21563
Wire Harness Side
1
2 3 4 5
6
7 8
9 10 11
13
12
14 15 16 17
BE–40
–
BODY ELECTRICAL
TURN SIGNAL AND HAZARD WARNING SYSTEM
1424
1997 LEXUS ES300 (RM511U)
INSPECTION
1.
INSPECT TURN SIGNAL SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
Left turn
1 – 2
Continuity
Neutral
–
No continuity
Right turn
2 – 3
Continuity
If continuity is not as specified, replace the switch.
2.
INSPECT COMBINATION SWITCH CIRCUIT
Connect the wire harness side connector to the combination
switch and inspect wire harness side connector from the back
side.
Tester connection
Condition
Specified condition
1 – Ground
Constant
*Continuity
3 – Ground
Constant
*Continuity
2 – Ground
Ignition switch ON and turn signal switch position
Neutral
No voltage
2 – Ground
Hazard warning switch ON
Battery positive voltage
2 – Ground
Ignition switch ON and turn signal switch position
Left or Right
Battery positive voltage
*There is resistance because this circuit is grounded through
the bulb.
If the circuit is not as specified, inspect the circuit connected to
other parts.
BE1843
Turn Signal Light Bulbs(21W)
1
2
2
3
N21578
e–10–2
1
2
3
4
5
6
7
8
9
10
N21579
e–10–1
1 2
3 4
5 6 7 8 9 10
Wire Harness Side
–
BODY ELECTRICAL
TURN SIGNAL AND HAZARD WARNING SYSTEM
BE–41
1425
1997 LEXUS ES300 (RM511U)
3.
INSPECT TURN SIGNAL FLASHER OPERATION
(a)
Connect the positive (+) lead from the battery to terminal
2 and the negative (–) lead to terminal 3.
(b)
Connect the 2 turn signal light bulbs in parallel to each
other to terminals 1 and 3, check that the bulbs flash.
HINT:
The turn signal lights should flash 60 to 120 times per minute.
If one of the front or rear turn signal lights has an open circuit,
the number of flashes will be more than 140 per minute.
If operation is not as specified, replace the flasher.
4.
INSPECT HAZARD WARNING SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
Switch OFF
5 – 7
Continuity
Switch ON
1 – 2 – 3 – 4
5 – 6
Continuity
Illumination circuit
8 – 9
Continuity
If continuity is not as specified, replace the switch.
5.
INSPECT HAZARD WARNING SWITCH CIRCUIT
Disconnect the switch connector and inspect the connection on
the wire harness side.
Tester connection
Condition
Specified condition
1 – Ground
Constant
*
2
Continuity
2 – Ground
Constant
*
2
Continuity
*
1
9 – Ground
Constant
Continuity
6 – Ground
Constant
Battery positive voltage
7 – Ground
Ignition switch position LOCK or ACC
No voltage
7 – Ground
Ignition switch position ON
Battery positive voltage
*
1
8 – Ground
Light control switch position OFF
No voltage
*
1
8 – Ground
Light control switch position TAIL or HEAD
Battery positive voltage
*
1
: Illumination
*
2
: There is resistance because this circuit is grounded through
the bulb.
If the circuit is not as specified, inspect the circuits connected
to other parts.
N21591
Rheostat Light
Control Volume
Glove Box
LIght Switch
BE055–01
BE–42
–
BODY ELECTRICAL
ILLUMINATION LIGHT SYSTEM
1426
1997 LEXUS ES300 (RM511U)
ILLUMINATION LIGHT SYSTEM
LOCATION
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