Unit, Electronic Drive: Installation
WARNING: This page is about a different variant/trim than selected.
WARNING:
When performing any repairs that involve contact with high voltage components or systems, the technician performing repairs on the vehicle must verify that the system remains powered down during high voltage repairs.
- This must be done by removing the service disconnect.
- The high voltage power down procedure must also be performed to ensure that the vehicle is properly powered down.
- The technician must know the whereabouts of the service disconnect throughout the repair.
- The technician must ensure that no one reconnects the service disconnect while service is being performed.
- The technician must recheck that the service disconnect has not been reinstalled in cases where the vehicle was unattended.
- Attach the electric drive unit (EDU) to a suitable transmission jack, and raise the EDU to align the motor mounts with the corresponding brackets.
- Install and tighten the center, lower motor mount through-bolt (1) to 100 N.m (74 ft. lbs.).
- Install and tighten the RH front motor mount through-bolt (1) to 100 N.m (74 ft. lbs.).
- Install the LH motor mount through-bolt (1) and tighten to 100 N.m (74 ft. lbs.).
- Detach the transmission jack from the EDU.
- Connect the resolver electrical connector (2), and the temperature sensor electrical connector (1).
- Connect the Park Lock Motor connector (1).
- Install the park lock motor wire harness retention bracket to the gearbox and tighten the bolt to 6 N.m (53 in. lbs.).
- Install and tighten the ground strap bolt (1) at the front of the RH motor mount to 12 N.m (9 ft. lbs.).
- Connect the electric motor high-voltage electrical connector (1).
- Connect the two coolant hoses (1) to the electric motor, and install the clamps.
- Remove the hose-pinching pliers from the coolant hoses at the electric motor.
- Install the half shafts. Refer to INSTALLATION
.
- Install the two battery coolant heater (BCH) nuts (2) and tighten to 20 N.m (15 ft. lbs.).
- Install the BCH ground strap bolt (1) and tighten to 12 N.m (9 ft. lbs.).
- Install the washer bottle, and install and tighten the two washer bottle bolts (1) to 7 N.m (62 in. lbs.).
- Install the underbody brace (2), and install and tighten the four underbody brace bolts (1) to 100 N.m (74 ft. lbs.).
- Install the RH front wheelhouse splash shield Refer to INSTALLATION .
- Fill the EDU with proper gear lubricant. Refer to CAPACITIES AND RECOMMENDED FLUIDS, SPECIFICATIONS .
- Install the 12-volt battery tray and 12-volt battery. Refer to TRAY, BATTERY, INSTALLATION .
- Perform the LOSS OF ISOLATION CHECK. Refer to DIAGNOSIS AND TESTING .
- Power-up the high-voltage system. Refer to HIGH-VOLTAGE POWER UP .
- Fill the power electronics coolant level Refer to HI-VOLTAGE BATTERY COOLANT FILL .
- Clear any stored DTC's that may be set.
- Perform the Resolver Relearn procedure Refer to RESOLVER RELEARN .