Overhaul

Overhaul

During overhaul, immobilize and disable the vehicle if not already done. The HV battery cover should never be breached or removed under any circumstances including fire. Doing so may result in severe electrical burns, shock, or electrocution.

- Immobilize Vehicle:
Chock wheels and set the parking brake.
Move the shift lever to the Park position.

NOTE:
The LS 600h L utilizes a push/pull parking brake switch that electromechanically sets/releases the rear parking brakes.
- To set/release, push/pull the parking brake switch located on the
dash to the right side of the steering column (refer to illustration).
- If the AUTO button is set and illuminated, the parking brake will
automatically set when the vehicle is shifted to the Park position.
- To verify that the parking brake is set, confirm that the PARK
light illuminates on the instrument cluster (refer to illustration).
The PARK light will turn off after approximately 15 seconds.

- Disable Vehicle:
Performing either of the following two procedures will shut the
vehicle off and disable the HV battery pack, SRS, and gasoline fuel pump.




Procedure #1
1. Confirm the status of the READY indicator in the instrument cluster.
2. If the READY indicator is illuminated, the vehicle is on and operational. Shut off the vehicle by pushing the power button once.
3. The vehicle is already shut off if the instrument cluster lights and the READY indicator are not illuminated. Do not push the power button because the vehicle may start.
4. If the smart key is easily accessible, keep it at least 16 feet (5 meters) away from the vehicle.
5. If the smart key cannot be found, disconnect the 12 Volt auxiliary battery behind the cover in the trunk to prevent accidental restarting of the vehicle.





Procedure #2 (Alternate if power button is inaccessible)
1. Open the hood.
2. Remove the engine compartment and fuse box covers.
3. Remove the IG2 relay in the engine compartment fuse box (refer to illustration). If the correct relay cannot be recognized, pull both relays in the fuse box.
4. Disconnect the 12 Volt auxiliary battery behind the cover in the trunk.


Stabilize Vehicle:
Crib at (4) points directly under the front and rear pillars.
Do not place cribbing under the high voltage power cables, exhaust system, or fuel system.