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.
Generator Cable: Replacement
- 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.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.
