Heater fan, turn signals and rear wiper stopped working all at the same time. ABS light and air bag light is lite on dash panel. Emergency flashers and daytime running lights still work, just not the turn signals. The fuse panel under the dash is hard to read and the relays are not marked so I'm having trouble checking everything, but the fuses I have checked all seem fine. Nothing looks bad in the fuse module under the hood either.
Https://s9.postimg.org/4k77afpa7/turn_signal.jpg
Click on the link. I looked at turn signal wiring. Check fuse 15--20 amp under hood fuse box. Not only check the fuse, use a testlight and check fuse circuit for voltage, hot all the time. At the combo flasher, there is also, ignition/run voltage, goes hot with the key on, you can see wire color.
There could be other issues. As you can see, turn signal switch is part of ground circuit.
I could post whole diagram on one link, but, too small to read. Usually with multiple issues, I just pick one and check it out. Fixing one issue may or may not fix the others?
SOURCE: Just got the van back from a hobbyist mechanic a
It sounds like your blower relay and your interior relays have been shorted out.
| Fuses | Rating | Color | Circuit |
|---|---|---|---|
| Engine bay fuse box | |||
| 1 | 80 | Black | Power supply to main fuse box |
| 2 | 60 | Yellow | Radiator fan |
| 3 | 60 | Yellow | ABS |
| 4 | 20 | Yellow | Daytime running lights |
| 5 | 30 | Light green | Fog lamp |
| 6 | 30 | Light green | Not used |
| 7 | 30 | Light green | ABS |
| 8 | 30 | Light green | Air pump |
| 9 | 20 | Light bue | PCM module |
| 10 | 20 | Light bue | Ignition switch |
| 11 | 3 | Violet | PCM memory |
| 12 | 15 | Light bue | Horn & hazard flasher |
| 13 | 15 | Light bue | Oxygen sensor |
| 14 | 15 | Light bue | Fuel pump |
| 15 | 10 | Red | Right-hand low beam |
| Passenger compartment fuse box | |||
| 16 | 10 | Red | Left-hand low beam |
| 17 | 10 | Red | Right-hand high beam |
| 18 | 10 | Red | Left-hand high beam |
| 19 | 7.5 | Brown | Heated door mirrors |
| 20 | 10 | Black | Windshield wipers |
| 21 | 30 | Light green | Electric windows |
| 22 | 7.5 | Brown | ABS |
| 23 | 15 | Light bue | Reverse lights |
| 24 | 15 | Light bue | Brake lights |
| 25 | 20 | Yellow | Door locks |
| 26 | 20 | Yellow | Main light |
| 27 | 15 | Light bue | Cigarette lighter |
| 28 | 30 | Light green | Power seats |
| 29 | 30 | Light green | Heated rear window |
| 30 | 7.5 | Brown | Engine management |
| 31 | 7.5 | Brown | Instrument pannel lights |
| 32 | 7.5 | Brown | Radio |
| 33 | 7.5 | Brown | Front and rear sidelights (left) |
| 34 | 7.5 | Brown | Interior lighting & clock |
| 35 | 7.5 | Brown | Front and rear sidelights (right) |
| 36 | 30 | Light green | Air bag |
| 37 | 30 | Light green | Heated blower |
| 38 | Unused |
| Relays | Color | Circuit | Location |
|---|---|---|---|
| Engine bay fuse box | |||
| R1 | Green | Daytime running lights (Canada) | |
| R2 | Black | Radiator fan (high speed) | |
| R3 | Blue | AC cut-out | |
| R4 | Brown | AC clutch | |
| R5 | Dark green | Radiator fan (low speed) | |
| R6 | Yellow | Starter | |
| R7 | Brown | Horns | |
| R8 | Brown | Fuel pump | |
| R9 | White | Low beam headlights | |
| R10 | White | High beam headlights | |
| R11 | Brown | PCM power supply | |
| Passenger compartment fuse box | |||
| R12 | White | Interior and courtesy lights | |
| R13 | Yellow | Heated rear window | |
| R14 | Yellow | Heated blower | |
| R15 | Green | Windshield wiper motor | |
| R16 | Black | Ignition | |
| R17 | Unused | ||
| R18 | Black | One touch window switch | Driver's door |
| R19 | Blue | Cruise control cut-off | Central fuse box bracket |
| R20 | Unused | ||
| R21 | Unused | ||
| R22 | White | Fog lights | Interface module bracket |
| R23 | Black | Turn signals | Steering column |
| R24 | White | Left-hand flasher | Door lock module bracket |
| R25 | White | Right-hand flasher | Door lock module bracket |
| R26 | Unused |
| Bulbs / Lights | Wattage | Type |
|---|---|---|
| Low beam headlamp | 55 | 9006 Halogen |
| High beam headlamp | 55 | 9005 Halogen |
| Parking / Side light | 5 | 2357A Wedge |
| Front turn signal | 21 | 2357A Bayonet |
| Rear turn signal | 21 | 1157 Bayonet |
| Tail light | 21 | 1157 Bayonet |
| Stop light | 21 | 1157 Bayonet |
| High mount stop light | 5 | 2723 Bayonet |
| Fog/Driving light | 55 | 893 Halogen |
| License plate | 5 | 6418 Festoon |
| Reverse light | 21 | 1156 Bayonet |
| Front sidemarker | 5 | 2357A Wedge |
| Glove box | ||
| Map light | 5 | 64111 Wedge |
| Dome light | 10 | 6411 Feston |
| Step/Courtesy light | ||
| Trunk/Cargo area | ||
| Engine compartment | 10 | 89 Wedge |
| Instrument-general | ||
| Automatic trans indicator |
relay and RAP module
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