REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during hybrid battery terminal block removal/installation are shown below. Necessary Procedures After Parts Removed/Installed/Replaced
CAUTION:
NOTICE: After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Click here PROCEDURE 1. REMOVE HV BATTERY Click here 2. REMOVE UPPER HV BATTERY COVER SUB-ASSEMBLY Click here 3. REMOVE NO. 1 HV BATTERY SHIELD PANEL Click here 4. REMOVE HYBRID BATTERY TERMINAL BLOCK CAUTION: Be sure to wear insulated gloves and protective goggles.
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Toyota Avalon Service & Repair Manual > Hybrid Control System: ECU Power Source Circuit
DESCRIPTION If the power switch is on (IG), the hybrid vehicle control ECU applies current to the MREL terminal to turn the IGCT relay on. This supplies power to the +B1 and +B2 terminals. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: After turning the power switch off, waiting time may be required ...