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.
2004 Toyota Matrix Base, 4WDFACTORY OEM SERVICE PROCEDURE
Generator Cable: Replacement
WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- When working on the high voltage systems, always wear insulated gloves.
- After removing the service plug grip, do not operate the power switch as it may damage the hybrid vehicle control ECU.
- Keep the removed service plug in your pocket to prevent other technicians from reconnecting it while you are servicing the vehicle.
- After removing the service plug grip, do not touch the high voltage connectors and terminals for 5 minutes.
- DISCONNECT BATTERY NEGATIVE TERMINAL
- REMOVE SERVICE PLUG GRIP (SEE SERVICE PLUG GRIP )
- REMOVE ENGINE UNDER COVER LH
- REMOVE ENGINE UNDER COVER RH
- DRAIN COOLANT (SEE REPLACEMENT )
- REMOVE COWL TOP PANEL SUB-ASSY OUTER FRONT (SEE HYBRID CONTROL SYSTEM W/CONVERTER INVERTER ASSY )
- REMOVE W/CONVERTER INVERTER ASSY (SEE HYBRID CONTROL SYSTEM W/CONVERTER INVERTER ASSY )
- REMOVE GENERATOR CABLE
- Zero bolt confirmation process.NOTE: Ensure that insulated gloves are worn when carrying out this procedure.
- Remove the 4 bolts and power cable cover.
- Remove the two bolts from the generator cable.
- Inspect the voltage between each of the 3 phase AC terminals (U to V, V to W, U to W) and body earth using the Toyota electrical tester.
Standard value: 0 V
HINT:
Use the Toyota Electrical Tester on measured ranges of DC 400 volts or more.
- Remove the 3 bolts and generator cable.
- Zero bolt confirmation process.
- INSTALL GENERATOR CABLE
- Apply a small amount of ATF WS to the generator cable O-ring.
- Connect the generator cable as shown in the illustration.NOTE:
- Connect by aligning the letters U, V and W.
- Ensure that no foreign objects are attached to the O-ring when connecting the cables.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
