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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 158 (POWER MOON ROOFS)COMPONENT TESTSON-VEHICLE INSPECTIONDRIVER SIDE JUNCTION BLOCK ASSEMBLY (BODY ECU) LEFT SIDE
2004 Toyota Matrix XR, FWD, Standard
Driver Side Junction Block Assembly (Body ECU) Left Side
2004 Toyota Matrix XR, FWD, StandardSECTION Driver Side Junction Block Assembly (Body ECU) Left Side
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the body ECU connector B6. See Fig 1.
- Check the voltage of each terminal of the wire harness side connector. See INSPECTING DRIVER SIDE JUNCTION BLOCK ASSEMBLY (BODY ECU) LEFT SIDE VOLTAGE table. If the value is not as specified, there may be a malfunction in the wire harness side.INSPECTING DRIVER SIDE JUNCTION BLOCK ASSEMBLY (BODY ECU) LEFT SIDE VOLTAGE
Tester Connection Condition Voltage B6-9 (PD) - Ground Turning Driver's Door Lock Cylinder From Neutral To Unlock By Key For 2.5 Sec. Or More) 0 Volt - 10-14 Volts B6-1 (DCTY) - Ground Driver's Door Fully Closed - Opened 0 Volt - 10-14 Volts
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.