
Service Information
2023 BrightDrop Zevo 600 |
Zevo 600 Service Manual (16397800) |
Document ID: 5840781
Front Electric Drive Transmission Module Replacement
Single Use Fasteners and Components- Air Conditioning Compressor and Condenser Hose Seal[2x]
- Air Conditioning Compressor Hose Seal
- Air Conditioning Evaporator Inlet Tube Seal[2x]
- Drive Motor Mount BoltM12 x 116[2x]
- Drive Motor Mount BoltM12 x 60[7x]
Special Tools- EN-36857 Engine Lift Bracket
- EN-52059 Engine Support Fixture Adapter Bolts - M10
Equivalent regional tools:Special Tools
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure includes the following steps:
- Identify how to disable high voltage.
- Identify how to test for the presence of high voltage.
- Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
- Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
- Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.
Failure to follow the procedures may result in serious injury or death.
Removal Procedure- Drain the fluid from the electric drive transmission. Transmission Fluid Drain and Fill
- Remove the front cradle assembly. Front Cradle Removal and Installation

Note: Left side shown, right side similar.
- Using a suitable flat bladed tool (1), release the left and right side front wheel drive half shafts (2) from the front electric drive transmission module.

- High Voltage Battery Coolant Inlet HoseRetainer(3)»Disengage[2x]

- Electrical Connector(1)@High Voltage Battery Coolant Cooler Inlet Hose»Disconnect
- Heater Inlet Hose Clip(2)»Disengage
- High Voltage Battery Coolant Cooler Inlet HoseRetainer(3)»Release[2x]
- High Voltage Battery Coolant Cooler Inlet Hose(4)@Drive Motor Battery Coolant Cooler»Remove
- High Voltage Battery Coolant Cooler Inlet Hose(4)@High Voltage Battery Heater Module»Remove

- Heater Coolant Heater Inlet HoseRetainer(1)»Release[2x]
- Heater Coolant Heater Inlet Hose(2)@High Voltage Battery Heater Module»Remove
- Heater Coolant Heater Inlet Hose(2)@Hybrid/Electric Vehicle Electronics Coolant Pump»Remove

- High Voltage Battery Coolant Pump Inlet HoseRetainer(1)»Disengage[6x]
- High Voltage Battery Coolant Pump Inlet HoseRetainer(2)»Release
- High Voltage Battery Coolant Pump Inlet Hose(3)@Automatic Transmission Fluid Cooling Exchanger»Remove

- Front Electric Drive Transmission Module HoseRetainer(1)»Release
- Front Electric Drive Transmission Module Hose(2)@Generator Control Module Coolant Pump»Remove

- Front Electric Drive Transmission Module HoseRetainer(1)»Release
- Front Electric Drive Transmission Module HoseRetainer(2)»Disengage[4x]
- Front Electric Drive Transmission Module Hose(3)@Drive Motor Power Inverter Module»Remove

- High Voltage Battery Coolant Cooler Outlet HoseRetainer(1)»Disengage[3x]
- High Voltage Battery Coolant Cooler Outlet Hose(2)»Remove
- Remove harness retainers as needed.

- Front Electric Drive Transmission Module Cooler Coolant HoseRetainer(1)»Release[2x]
- Heater Coolant Heater Bolt(2)»Remove
- Transmission Fluid Cooler Pipe Bolt(3)»Remove
- Front Electric Drive Transmission Module Cooler Coolant Hose(4)@Drive Motor Power Inverter Module»Remove
- Front Electric Drive Transmission Module Cooler Coolant Hose(4)@Automatic Transmission Fluid Cooling Exchanger»Remove
- Remove the front electric drive transmission module cooler coolant hose (4) with heater coolant heater bracket (5).

- High Voltage Electrical Connector(1)@High Voltage Battery Heater Module»Disconnect—High Voltage Connectors
- Electrical Connector(2)@High Voltage Battery Heater Module»Disconnect

- High Voltage Battery Heater Bracket Bolt(1)»Remove[4x]
- High Voltage Battery Heater Module(2)»Remove

- Wiring Harness Retainer(1)»Release
- High Voltage Battery Heater Bracket Bolt(2)»Remove[2x]
- High Voltage Battery Heater Bracket(3)»Remove

- Electrical Connector(1)@Drive Motor Position Sensor Stator»Disconnect
- Electrical Connector(2)@Drive Motor Power Inverter Module»Disconnect
- Wiring Harness Retainer(3)»Disengage[5x]
- Reposition wiring harness.

- Electrical Connector(1)@Air Conditioning Condenser and Evaporator Hose»Disconnect
- Electrical Connector(2)@Air Conditioning Evaporator Tube»Disconnect
- Electrical Connector(3)@Air Conditioning Condenser and Evaporator Hose»Disconnect
- Wiring Harness Retainer(4)»Disengage[2x]

- Air Conditioning Condenser and Evaporator Hose Fitting Nut(1)»Remove
- Air Conditioning Condenser and Evaporator Hose(2)@Drive Motor Battery Coolant Cooler»Remove
- Air Conditioning Compressor Hose Seal(3)@Drive Motor Battery Coolant Cooler»Remove and DISCARD

- Disconnect wiring harness connectors and remove harness retainers as needed.
- High Voltage Air Conditioning Compressor Bracket Bolt(2)»Remove[2x]
- High Voltage Air Conditioning Compressor Lower Mount Bolt(3)»Remove
- Remove the air conditioning with motor compressor (4) and attached components.

- Electrical Connector(1)@Automatic Transmission Wiring Harness»Disconnect
- Electrical Connector(2)@Manual Shift Shaft Motor»Disconnect
- Wiring Harness Retainer(3)»Disengage[3x]

- {If equipped} Electrical Connector(1)@Automatic Transmission Wiring Harness»Disconnect

- Electrical Connector(1)@Drive Motor Battery Coolant Cooler»Disconnect
- Wiring Harness Retainer(2)»Disengage

- Drive Motor Battery Cooling Blower Bracket Nut(1)»Remove[2x]
- Drive Motor Battery Cooling Blower Bracket Bolt(2)»Remove[2x]
- Drive Motor Battery Coolant Cooler(3)»Remove

- Drive Motor Battery Cooling Blower Bracket Bolt (1)»Remove
- Drive Motor Battery Coolant Cooler Bracket(2)»Remove

- {If equipped} Battery Positive Cable Channel Nut(1)»Remove[2x]

- High Voltage Electrical Connector(1)@Drive Motor Power Inverter Module»Disconnect—High Voltage Connectors
- Battery Cable Clip Bracket Bolt(2)»Remove[4x]
- Battery Positive and Negative Cable(3)»Remove

Note: Left side shown, right side similar.
- High Voltage Battery Bolt- Left Side and Right Side(1)»Remove[2x]
- Battery Negative Cable Extension Cable- Left Side and Right Side(2)»Reposition away[2x]

- Assemble the following tools to the electric drive transmission (4):
- EN-52059 Engine Support Fixture Adapter Bolts - M10 (1)
- EN-36857 Engine Lift Bracket (2)
- Overhead Hoist Hooks (3)

Note: Some components not shown for graphic clarity.
- Drive Motor Mount Nut(1)»Remove
- Drive Motor Mount BoltM12 x 116(2)»Remove and DISCARD[2x]

- Drive Motor Rear Mount BoltM10 x 50.65(1)»Remove[4x]
- Disconnect the remaining wiring harness connectors and remove the remaining harness retainers from the underside of the front electric drive transmission module.

Warning: The transmission may weigh in excess of 215 kg (475 lbs), either by itself or in combination with additional components, use extreme care when installing, removing, or moving the transmission. Assistance from a hoist and/or an assistant may be required.
- Ensure that lifting equipment can properly support the transmission and any additional components.
- Ensure rigging applies vertical force to the lifting points and never horizontal.
- The use of a load leveler is recommended.
Failure to follow these guidelines can result in personal injury and/or component damage.
- Using a overhead hoist, raise electric drive transmission (1) from cradle.
- Place electric drive transmission on a suitable workbench.

- Drive Motor Mount BoltM12 x 60(1)»Remove and DISCARD[4x]
- Drive Motor Mount- Left Side(2)»Remove

- Drive Motor Mount BoltM12 x 60(1)»Remove and DISCARD[3x]
- Drive Motor Mount- Right Side(2)»Remove

- Drive Motor Rear Mount BoltM12 x 60.90(1)»Remove and DISCARD[3x]
- Drive Motor Rear Mount- Left Side(2)»Remove

- Drive Motor Rear Mount BoltM12 x 60.90(1)»Remove and DISCARD[3x]
- Drive Motor Rear Mount- Right Side(2)»Remove
Installation Procedure

- Drive Motor Rear Mount- Right Side(2)»Install
- Drive Motor Rear Mount BoltM12 x 60.90(1)»Install NEW and tighten[3x]—Fastener Specifications

- Drive Motor Rear Mount- Left Side(2)»Install
- Drive Motor Rear Mount BoltM12 x 60.90(1)»Install NEW and tighten[3x]—Fastener Specifications

- Drive Motor Mount- Right Side(2)»Install
- Drive Motor Mount BoltM12 x 60(1)»Install NEW and tighten[3x]—Fastener Specifications

- Drive Motor Mount- Left Side(2)»Install
- Drive Motor Mount BoltM12 x 60(1)»Install NEW and tighten[4x]—Fastener Specifications

Warning: The transmission may weigh in excess of 215 kg (475 lbs), either by itself or in combination with additional components, use extreme care when installing, removing, or moving the transmission. Assistance from a hoist and/or an assistant may be required.
- Ensure that lifting equipment can properly support the transmission and any additional components.
- Ensure rigging applies vertical force to the lifting points and never horizontal.
- The use of a load leveler is recommended.
Failure to follow these guidelines can result in personal injury and/or component damage.
- Using an overhead hoist, remove the electric drive transmission (1) from the workbench and lower onto the cradle.
- Install the harness retainers and connect the wiring harness connectors to the underside of the front electric drive transmission module as needed.

- Drive Motor Rear Mount BoltM10 x 50.65(1)»Install and tighten[4x]—Fastener Specifications

- Drive Motor Mount BoltM12 x 116(2)»Install NEW[2x]
- Drive Motor Mount Nut(1)»Install
- Drive Motor Mount BoltM12 x 116(2)»Tighten[2x]—Fastener Specifications

- Remove the following tools from the electric drive transmission (4):
- EN-52059 Engine Support Fixture Adapter Bolts - M10 (1)
- EN-36857 Engine Lift Bracket (2)
- Overhead Hoist Hooks (3)

- Battery Negative Cable Extension Cable- Left Side and Right Side(2)»Install[2x]
- High Voltage Battery Bolt- Left Side and Right Side(1)»Install and tighten[2x]—Fastener Specifications

- Battery Positive and Negative Cable(3)»Install
- Battery Cable Clip Bracket Bolt(2)»Install and tighten[4x]—Fastener Specifications
- High Voltage Electrical Connector(1)@Drive Motor Power Inverter Module»Connect—High Voltage Connectors

- {If equipped} Battery Positive Cable Channel Nut(1)»Install and tighten[2x]—Fastener Specifications

- Drive Motor Battery Coolant Cooler Bracket(2)»Install
- Drive Motor Battery Cooling Blower Bracket Bolt (1)»Install and tighten—Fastener Specifications

- Drive Motor Battery Coolant Cooler(3)»Install
- Drive Motor Battery Cooling Blower Bracket Bolt(2)»Install and tighten[2x]—Fastener Specifications
- Drive Motor Battery Cooling Blower Bracket Nut(1)»Install and tighten[2x]—Fastener Specifications

- Wiring Harness Retainer(2)»Engage
- Electrical Connector(1)@Drive Motor Battery Coolant Cooler»Connect

- {If equipped} Electrical Connector(1)@Automatic Transmission Wiring Harness»Connect

- Electrical Connector(1)@Automatic Transmission Wiring Harness»Connect
- Electrical Connector(2)@Manual Shift Shaft Motor»Connect
- Wiring Harness Retainer(3)»Engage[3x]

- Install the air conditioning with motor compressor (4)and attached components.
- High Voltage Air Conditioning Compressor Lower Mount Bolt(3)»Install and tighten—Fastener Specifications
- High Voltage Air Conditioning Compressor Bracket Bolt(2)»Install and tighten[2x]—Fastener Specifications

- Air Conditioning Compressor Hose Seal(3)@Drive Motor Battery Coolant Cooler»Install NEW
- Air Conditioning Condenser and Evaporator Hose(2)@Drive Motor Battery Coolant Cooler»Install
- Air Conditioning Condenser and Evaporator Hose Fitting Nut(1)»Install and tighten—Fastener Specifications
- Install harness retainers and connect wiring harness connectors as needed.

- Electrical Connector(1)@Air Conditioning Condenser and Evaporator Hose»Connect
- Electrical Connector(2)@Air Conditioning Evaporator Tube»Connect
- Electrical Connector(3)@Air Conditioning Condenser and Evaporator Hose»Connect
- Wiring Harness Retainer(4)»Engage[2x]

- Electrical Connector(1)@Drive Motor Position Sensor Stator»Connect
- Electrical Connector(2)@Drive Motor Power Inverter Module»Connect
- Wiring Harness Retainer(3)»Engage[5x]

- High Voltage Battery Heater Bracket(3)»Install
- High Voltage Battery Heater Bracket Bolt(2)»Install and tighten[2x]—Fastener Specifications
- Wiring Harness Retainer(1)»Engage

- High Voltage Battery Heater Module(2)»Install
- High Voltage Battery Heater Bracket Bolt(1)»Install and tighten[4x]—Fastener Specifications

- Electrical Connector(2)@High Voltage Battery Heater Module»Connect
- High Voltage Electrical Connector(1)@High Voltage Battery Heater Module»Connect—High Voltage Connectors

- Install the heater coolant heater bracket (5) with front electric drive transmission module cooler coolant hose (4).
- Front Electric Drive Transmission Module Cooler Coolant Hose(4)@Automatic Transmission Fluid Cooling Exchanger»Install
- Front Electric Drive Transmission Module Cooler Coolant Hose(4)@Drive Motor Power Inverter Module»Install
- Front Electric Drive Transmission Module Cooler Coolant HoseRetainer(1)»Engage[2x]
- Transmission Fluid Cooler Pipe Bolt(3)»Install and tighten—Fastener Specifications
- Heater Coolant Heater Bolt(2)»Install and tighten—Fastener Specifications
- Install retainers as needed.

- High Voltage Battery Coolant Cooler Outlet Hose(2)»Install
- High Voltage Battery Coolant Cooler Outlet HoseRetainer(1)»Engage[3x]

- Front Electric Drive Transmission Module Hose(3)@Drive Motor Power Inverter Module»Install
- Front Electric Drive Transmission Module HoseRetainer(2)»Engage[4x]
- Front Electric Drive Transmission Module HoseRetainer(1)»Engage

- Front Electric Drive Transmission Module Hose(2)@Generator Control Module Coolant Pump»Install
- Front Electric Drive Transmission Module HoseRetainer(1)»Engage

- High Voltage Battery Coolant Pump Inlet Hose(3)@Automatic Transmission Fluid Cooling Exchanger»Install
- High Voltage Battery Coolant Pump Inlet HoseRetainer(2)»Engage
- High Voltage Battery Coolant Pump Inlet HoseRetainer(1)»Engage[6x]

- Heater Coolant Heater Inlet Hose(2)@High Voltage Battery Heater Module»Install
- Heater Coolant Heater Inlet Hose(2)@Hybrid/Electric Vehicle Electronics Coolant Pump»Install
- Heater Coolant Heater Inlet HoseRetainer(1)»Engage[2x]

- High Voltage Battery Coolant Cooler Inlet Hose(4)@Drive Motor Battery Coolant Cooler»Install
- High Voltage Battery Coolant Cooler Inlet Hose(4)@High Voltage Battery Heater Module»Install
- High Voltage Battery Coolant Cooler Inlet HoseRetainer(3)»Engage[2x]
- Heater Inlet Hose Clip(2)»Engage
- Electrical Connector(1)@High Voltage Battery Coolant Cooler Inlet HoseConnect

- High Voltage Battery Coolant Inlet HoseRetainer(3)»Engage[2x]

- Front Wheel Drive Half Shaft- Left Side and Right Side(1)@Front Electric Drive Transmission Module»Install[2x]
Caution: Prior to installing an electric drive transmission, make sure the shipping lifting brackets are removed from the transmission. Failure to remove the shipping lifting brackets can cause damage to the vehicle.
- Install the front cradle assembly. Front Cradle Removal and Installation
- Fill the electric drive transmission. Transmission Fluid Drain and Fill
- Run all necessary programming and setup procedures.Control Module References