Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 202xg pstd4000
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05-1 131
DIAGNOSTICS - LIGHTING SYSTEM
05BVM-01
PROBLEM SYMPTOMS TABLE
HINT:
Proceed to troubleshooting of each circuit in the table below.
1. HEADLAMP AND TAIL LAMP SYSTEM
Symptom Suspect Area See page
1. Bulb -
2. H-LP LL, H-LP RL fuse -
Only one headlamp comes on.
3. Light control ECU (w/ HID) -
4. Harness or connector -
1. H-LP LL, H-LP RL fuse -
2. Headlight relay circuit 05-1139
3. Light control switch circuit 05-1142
4. Ignition switch circuit 05-1160
Headlamp does not come on.
5. Door lock position circuit 05-1172
6. Door courtesy switch circuit 05-1166
7. Wireless door lock system 05-1790
8. Instrument panel junction block assy -
1. Bulb -
2. H-LP LH, H-LP RH fuse -
3. DRL fuse -
"HI-Beam" does not come on (All).
4. DRL relay circuit 05-1146
5. Light control switch circuit 05-1142
6. Instrument panel junction block assy -
1. Bulb -
"HI-Beam" does not come on (One side).
2. Harness or connector -
"Flash" does not come on. 1. Light control switch circuit 05-1142
(Headlamp and Hi-Beam is normal) 2. Instrument panel junction block assy -
1. Bulb -
Headlamp is dark.
2. Harness or connector -
1. TAIL fuse -
2. Light control switch circuit 05-1142
3. TAIL relay circuit 05-1150
4. Ignition switch circuit 05-1160
Tail lamp does not come on (All).
5. Door courtesy switch circuit 05-1166
6. Door lock position circuit 05-1172
7. Wireless door lock system 05-1790
8. Instrument panel junction block assy -
1. Bulb -
Only one tail lamp comes on.
2. Harness or connector -
1. Bulb -
Rear combination light does not come on.
2. Harness or connector -
1. Light control switch circuit 05-1142
2. Generator signal circuit 05-1155
3. Parking brake switch circuit 05-1157
Daytime running light system does not operate.
4. Ignition switch circuit 05-1160
5. DRL relay circuit 05-1146
6. Instrument panel junction block assy -
2. AUTOMATIC LIGHT CONTROL SYSTEM
Symptom Suspect Area See page
1. Light control switch circuit 05-1142
2. Ignition switch circuit 05-1160
Automatic light control system does not operate.
3. Automatic light control sensor circuit 05-1137
4. Instrument panel junction block assy -
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1314
05-1 132
DIAGNOSTICS - LIGHTING SYSTEM
3. LIGHT AUTO TURN OFF SYSTEM
Symptom Suspect Area See page
1. Light control switch circuit 05-1142
2. Ignition switch circuit 05-1160
3. Door lock position circuit 05-1172
Light auto turn off system does not operate.
4. Door courtesy switch circuit 05-1166
5. Wireless door lock system 05-1790
6. Instrument panel junction block assy -
4. FOG LAMP SYSTEM
Symptom Suspect Area See page
1. FOG fuse -
2. FOG relay -
Front fog lamp does not come on with light control switch in HEAD
3. Light control switch circuit 05-1142
position.
4. Front fog light circuit 05-1176
5. Instrument panel junction block assy -
1. Bulb -
Only one front fog lamp does not come on.
2. Harness or connector -
5. TURN SIGNAL AND HAZARD WARNING SYSTEM
Symptom Suspect Area See page
1. HAZ fuse -
2. GAUGE fuse -
3. IG1 relay -
"Hazard" and "Turn" do not come on.
4. Ignition switch -
5. Turn signal flasher relay 65-2
6. Harness or connector -
Hazard warning light does not come on. 1. Hazard warning switch 65-4
(Turn is normal) 2. Harness or connector -
Turn signal does not come on. 1. Headlamp dimmer switch (turn signal switch) 65-4
(Hazard is normal) 2. Harness or connector -
1. Headlamp dimmer switch (turn signal switch) 65-4
Turn signal does not come on in one direction.
2. Harness or connector -
1. Bulb -
Only one bulb does not come on.
2. Harness or connector -
6. ILLUMINATED ENTRY SYSTEM
Symptom Suspect Area See page
1. Ignition switch circuit 05-1160
2. Door lock position circuit 05-1172
Illumination lamp of Multiplex body ECU control does not come
3. Door courtesy switch circuit 05-1166
on.
4. Illumination circuit 05-1181
5. Instrument panel junction block assy -
1. Ignition switch circuit 05-1160
2. Door lock position circuit 05-1172
Illumination lamp of Multiplex body ECU control does not go off. 3. Door courtesy switch circuit 05-1166
4. Illumination circuit 05-1181
5. Instrument panel junction block assy -
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1315
05-1 133
DIAGNOSTICS - LIGHTING SYSTEM
7. OTHERS
Symptom Suspect Area See page
1. Bulb -
Vanity light does not operate.
2. Harness or connector -
1. TAIL relay -
Instrument panel illumination does not operate (All). 2. PANEL fuse -
3. Harness or connector -
1. STOP fuse -
2. Stop light switch -
Stop light does not operate (All).
3. BRK relay (w/ Dynamic loser cruise control system) -
4. Harness or connector -
1. GAUGE fuse -
2. IG1 relay -
Back up lamp does not come on (All).
3. Park/neutral position switch -
4. Harness or connector -
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1316
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