Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 851 (FRONT LIGHT (BODY NO. 5) CONTROL SYSTEM - DIAGNOSIS)TERMINALS OF ECU
2004 Toyota Matrix XR, FWD, Standard
Terminals Of Ecu
2004 Toyota Matrix XR, FWD, StandardSECTION Terminals Of Ecu
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
ECU TERMINALS VOLTAGE SPECIFICATION
| Symbols (Terminals No.) | Wiring Color | Condition | STD Voltage (V) |
|---|---|---|---|
| 1 <--> 25 (FOGR <--> E) | R-W <--> W-B | Front fog light switch ON | 10 - 14 V |
| 2 <--> 25 (FOGL <--> E) | R-Y <--> W-B | Front fog light switch ON | 10 - 14 V |
| 3 <--> 25 (FFOG <--> E) | R <--> W-B | Constant | 10 - 14 V |
| 4 <--> 25 (W+ <--> E) | B-W <--> W-B | Washer switch ON | 10 - 14 V |
| 6 <--> 25 (FWAS <--> E) | R-L <--> W-B | Constant | 10 - 14 V |
| 7 <--> 25 (CRAR <--> E) | G <--> W-B | Light control switch TAIL | 10 - 14 V |
| 8 <--> 25 (CRAL <--> E) | G-O <--> W-B | Light control switch TAIL | 10 - 14 V |
| 9 <--> 25 (FTAL <--> E) | G-Y <--> W-B | Constant | 10 - 14 V |
| 12 <--> 25 (FHHI <--> E) | R-L <--> W-B | Constant | 10 - 14 V |
| 13 <--> 25 (HORH <--> E) | B <--> W-B | Horn switch ON (Horn HI sounding) | 10 - 14 V |
| 14 <--> 25 (HORL <--> E) | G-W <--> W-B | Horn switch ON (Horn LO sounding) | 10 - 14 V |
| 15 <--> 25 (FHOR <--> E) | G-B <--> W-B | Constant | 10 - 14 V |
| 16 <--> 25 (SIDR <--> E) | V-W <--> W-B | Light control switch TAIL | 10 - 14 V |
| 17 <--> 25 (SIDL <--> E) | V-R <--> W-B | Light control switch TAIL | 10 - 14 V |
| 18 <--> 25 (HLHR <--> E) | LO <--> W-B | Light control switch HEAD | 10 -14 V |
| 24 <--> 25 (HLHL <--> E) | R-B <--> W-B | Light control switch HEAD | 10 -14 V |
| 25 <--> Body ground (E <--> Body ground) | W-B <--> Body ground | Constant | Below 1 V |
| 26 <--> 25 (WLVL <--> E) | V <--> W-B | Washer fluid level warning switch ON | 10 - 14 V |
| 29 <--> 25 (FMB3 <--> E) | R-B <--> W-B | Constant | 10 - 14 V |
| 30 <--> 25 (FMIG <--> E) | R-L <--> W-B | Ignition switch ON | 10 - 14 V |
| 31 (MPX2) | V-G | Multiplex communication circuit | - |
| 32 (MPX1) | V-G | Multiplex communication circuit | - |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.