65 - Lighting.pdf

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65–1
LIGHTING
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LIGHTING SYSTEM (April, 2003)
LIGHTING SYSTEM (Apr., 2003)
PRECAUTION
1. PRECAUTION OF HEADLIGHT BULB REPLACEMENT
(a) If even a thin film of oil is left on the surface of the halogen lamp, its service life will be shortened be-
cause the lamp will be burn at a higher temperature.
(b) Handle any halogen lamp with great care. Dropping, hitting or damaging the bulb, in any way, may
result in it exploding and scattering 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.
650WL–01
2004 COROLLA (RM1037U)
Author:
Date:
1678
65–2
LIGHTING
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LIGHTING SYSTEM (April, 2003)
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem. The numbers indicate the priority of the
likely cause of the problem. Check each part in order. If necessary, replace these parts.
1.
650WM–01
HEADLAMP AND TAIL LAMP
Symptom
Suspected Area
See page
”LO–Beam” does not come on (One side).
1. Bulb
2. HEAD RH LWR fuse or HEAD LH LWR fuse
3. Wire harness
–
–
–
”LO–Beam” does not come on (All).
1. HEAD Relay
2. Headlamp dimmer switch assy
3. Daytime running light relay
4. Wire harness
65–7
65–7
65–4
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”HI–Beam” does not come on (One side).
1. Bulb
2. HEAD RH UPR fuse or HEAD LH UPR fuse
3. Wire harness
–
–
–
”HI–Beam” does not come on (All).
1. DIMMER relay
2. Headlamp dimmer switch assy
3. Daytime running light relay
4. Wire harness
65–7
65–7
65–4
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”Flash” does not operate (All).
1. Headlamp dimmer switch assy
2. Daytime running light relay
3. Wire harness
65–7
65–4
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Headlamp is dark.
1. Bulb
2. Wire harness
–
–
Only one tail lamp comes on.
1. Bulb
2. Wire harness
–
–
Both tail lamps do not come on (Headlamps are normal).
1. TAIL fuse
2. TAIL relay (USA only)
3. Headlamp dimmer switch assy
4. Daytime running light relay (USA only)
5. Wire harness
–
65–7
65–7
65–4
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Both tail lamps do not come on (Headlamps do not come on).
1. Headlamp dimmer switch assy
2. Wire harness
65–7
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Headlamp does not come on with engine running, parking brake
released, and light control switch off.
1. HEAD relay
2. Generator
3. Parking brake switch
4. Daytime running light relay
5. Wire harness
65–7
–
–
65–4
–
2.
FRONT FOG LAMP SYSTEM
Symptom
Suspected Area
See page
Front fog lamps do not come on with light control switch in the
HEAD position (Headlamps are normal).
1. FOG fuse
2. FOG relay
3. Headlamp dimmer switch assy
4. Wire harness
–
65–7
65–7
–
Only one front fog lamp does not come on.
1. Bulb
2. Wire harness
–
–
2004 COROLLA (RM1037U)
Author:
Date:
1679
256354455.006.png
65–3
LIGHTING
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LIGHTING SYSTEM (April, 2003)
3.
TURN SIGNAL AND HAZARD WARNING SYSTEM
Symptom
Suspected Area
See page
”Hazard” and ”Turn” do not come on.
1. HAZARD fuse
2. Turn signal flasher relay
3. Wire harness
–
65–4
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Hazard warning lamp does not come on.
(Turn is normal)
1. Hazard warning signal switch assy
2. Wire harness
65–7
–
Turn signal does not come on.
(Hazard is normal)
1. Headlamp dimmer switch assy
2. Wire harness
65–7
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Turn signal does not come on in one direction.
1. Headlamp dimmer switch assy
2. Wire harness
65–7
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Only one bulb does not come on.
1. Bulb
2. Wire harness
–
–
4.
STOP LAMP SYSTEM
Symptom
Suspected Area
See page
Both stop lamps do not come on.
1. STOP fuse
2. Stop lamp switch assy
3. Wire harness
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65–7
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Stop lamp always remains ON.
1. Stop lamp switch assy
2. Wire harness
65–7
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Stop lamp does not come on (One side).
1. Bulb
2. Wire harness
–
–
5.
BACK UP LAMP SYSTEM
Symptom
Suspected Area
See page
Both back up lamps do not come on.
1. GAUGE fuse
2. Back up lamp switch (M/T)
3. Park/Neutral Position switch (A/T)
4. Wire harness
–
65–7
05–379
–
Both back up lamps remain always ON.
1. Back up lamp switch (M/T)
2. Park/Neutral Position switch (A/T)
3. Wire harness
65–7
05–379
–
Back up lamp does not come on (One side).
1. Bulb
2. Wire harness
–
–
6.
INTERIOR LAMP SYSTEM
Symptom
Suspected Area
See page
Room lamp do not come on.
1. Bulb
2. Wire harness
–
–
7.
LIGHT CONTROL RHEOSTAT SYSTEM
Symptom
Suspected Area
See page
Light control rheostat system does not operate.
1. Light control rheostat
2. Wire harness
65–7
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2004 COROLLA (RM1037U)
Author:
Date:
1680
256354455.007.png 256354455.008.png 256354455.009.png
65–4
LIGHTING
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LIGHTING SYSTEM (April, 2003)
ON–VEHICLE INSPECTION
650WN–01
Connector Front View:
T2
1. INSPECT TURN SIGNAL FLASHER RELAY CIRCUIT
(a) Disconnect the connector from the turn signal flasher
relay and inspect the connector on wire harness side as
shown in the chart.
E15683
Standard:
Tester connection
Condition
Specified condition
7 – Ground
Constant
Below 1 W
1 – Ground
Ignition switch ON
10 to 14 V
1 – Ground
Ignition switch OFF
Below 1 V
4 – Ground
Constant 10 to 14 V
(b) Connect the connector to the turn signal flasher and in-
spect the wire harness side connector from the back side
as shown in the chart.
Standard:
Tester connection
Condition
Specified condition
2 – Ground
Hazard warning signal switch OFF
"
ON
0 V " 0 @ Above 9 V
(60 to 120 times per minute)
2 – Ground
Turn signal switch (right turn) OFF " ON
0 V " 0 @ Above 9 V
(60 to 120 times per minute)
3 – Ground
Hazard warning signal switch OFF " ON
0 V " 0 @ Above 9 V
(60 to 120 times per minute)
3 – Ground
Turn signal switch (left turn) OFF " ON
0 V " 0 @ Above 9 V
(60 to 120 times per minute)
5 – Ground
Turn signal switch (left turn) OFF " ON
Above 9 V "
0 V
6 – Ground
Turn signal switch (right turn) OFF " ON
Above 9 V "
0 V
8 – Ground
Hazard warning signal switch OFF
"
ON
Above 9 V
"
0 V
2004 COROLLA (RM1037U)
Author:
Date:
1681
256354455.001.png 256354455.002.png 256354455.003.png 256354455.004.png
65–5
LIGHTING
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LIGHTING SYSTEM (April, 2003)
Connector Front View:
D2
2. INSPECT DAYTIME RUNNING LIGHT RELAY
(a) Connect the connector to the daytime running light relay
and inspect the wire harness side connector from the
back side as shown in the table below.
E69178
Standard:
Tester connection
Condition
Specified condition
1 – Body ground
Light control switch OFF or TAIL " HEAD
Below 1 V " Below 1 V
2 – Body ground
Always
Below 1 V
3 – Body ground
Always
10 to 14 V
4 – Body ground
Light control switch HEAD " OFF or TAIL
Below 1 V " 10 to 14 V
6 – Body ground
Light control switch OFF or TAIL " HEAD
10 to 14 V " Below 1 V
7 – Body ground
Light control switch OFF or TAIL " HEAD
10 to 14 V " Below 1 V
8 – Body ground
Engine stops
"
Running
Below 1 V
"
10 to 14 V
10 – Body ground
Brake fluid level low " Maximum
Below 1 V " 10 to 14 V
11 – Body ground
Parking brake lever is released
"
ON
10 to 14 V
"
Below 1 V
12 – Body ground
Ignition switch OFF " ON
Below 1 V " 10 to 14 V
Light control switch HEAD and headlight dimmer
switch is HIGH or FLASH
"
13 – Body ground
Below 1 V
"
Below 1 V
14 – Body ground (*1)
Light control switch OFF " TAIL or HEAD
10 to 14 V " Below 1 V
15 – Body ground (*1)
Light control switch OFF " TAIL or HEAD
10 to 14 V " Below 1 V
16 – Body ground
Headlight dimmer switch LOW "
HIGH or FLASH
10 to 14 V " Below 1 V
18 – Body ground (*1)
Always
Below 1 V
19 – Body ground (*1)
Ignition switch OFF " ON
Below 1 V " 10 to 14 V
20 – Body ground (*1)
Ignition switch OFF
"
ON
Below 1 V
"
10 to 14 V
*1: USA only.
2004 COROLLA (RM1037U)
Author:
Date:
1682
Light control switch OFF or TAIL
256354455.005.png

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