I am looking for a wiring diagram for a 2003 Toyota Tacoma stereo. I am installing an amp etc and need the appropriate diagram to ensure I don't blow up my new truck!
Any help would be appreciated. Thanks.
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oneroom
Its not the 2003 but toyota are usually enough constant in their wiring thru years i dont know specifically for 2003 but do your testing with this reference.
ITEM | WIRE COLOR |POL| WIRE LOCATION |
| 12V|white & WHITE/ red |+ |ignition harness |
| STARTER|black |+ |ignition harness |
| IGNITION|BLACK/ red |+ |ignition harness |
| SECOND IGNITION|BLACK / YELLOW |+ |ignition harness |
| ACCESSORY|blue/red |+ |ignition harness |
| POWER LOCK|see directfax | | |
| POWER UNLOCK|document #1070 | | |
| LOCK MOTOR|blue/white | |DKP, 12 pin plug in pin 10 |
| UNLOCK MOTOR|blue | |DKP, 12 pin plug in pin 11 |
| DISARM DEFEAT|blue | |PKP, 12 pin plug in pin 9 |
| PARKING LIGHTS +|green | |back of fusebox, 12 pin plug|
| PARKING LIGHTS -|PURPLE / red | |front of fusebox,22 pin plug|
| HEADLIGHTS|*2 |- |front of fusebox,22 pin plug|
| DOOR TRIGGER|*3 |- |front of fusebox,22 pin plug|
| DOME SUPERVISION|comes on with unlock| | |
| TACHOMETER|lt. GREEN/ black | |instrument cluster or *4 |
| SPEED SENSE|GREEN/ orange |4 |ECM behind the glove box |
| BRAKE WIRE|GREEN / WHITE |+ |brake pedal switch |
| HORN TRIGGER|GREEN/ red |- |steering column |
| WIPERS|blu/blk(L),RED / wht(H|+ |steering column |
| LF WINDOW UP/DN|blue - blu/yel |A |driver window switch |
| RF WINDOW UP/DN|RED / blk - RED / grn |A |DKP, 12 pin plug |
| LR WINDOW UP/DN|RED / blu - blu/blk |A |DKP, 13 pin plug |
| RR WINDOW UP/DN|yellow - lt. green |A |DKP, 13 pin plug |
| RADIO 12V|blue / YELLOW |+ |radio |
| RADIO GROUND|brown |- |radio |
| RADIO SWITCH|gray |+ |radio |
| RADIO ILLUMINATE|GREEN/ red |+ |radio |
| LF SPEAKER|pink - purple | |radio |
| RF SPEAKER|lt. green - blue | |radio |
| LR SPEAKER|black - yellow | |radio |
| RR SPEAKER|red - white | |radio |
Notes:
*1 Unlock requires a double pulse. *2 Vehicles without Daytime Running Lights it is RED / blue. Vehicles with DRL it is RED / green. *3 The driver door trigger is green, the front passenger door trigger is GREEN / WHITE, and the rear door trigger is YELLOW /GREEN. Use all three wires and diode isolate each. *4 On the 4 cyl it is at the data link connector to the right of the steering column. On the V6 it is at the igniter on the passenger fender, below the air filter box.
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Yes I'm Back 2006...