Generator Control Module Coolant Hose Replacement (PE From APM TO TPIM)

Fig 1: Generator Control Module Coolant Hose (PE From APM TO TPIM)

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
WARNING: Before conducting any repair to this high voltage cooling system, it is necessary to determine/verify whether no high-voltage system faults exist. If high-voltage faults exist, follow published DTC diagnostics/repair procedures prior to performing any cooling system repairs. Failure to correct High Voltage Faults before working on the high voltage cooling system could result in personal injury or death. Preliminary Procedures Turn vehicle power OFF and remove all keyless entry transmitters from the vehicle and secure in a place outside the vehicle. Remove the front compartment sight shield. Refer to Front Compartment Front Sight Shield Replacement . Remove the high voltage disconnect circuit connector cover. Refer to High Voltage Disconnect Circuit Connector Cover Replacement . Drain the drive motor generator power inverter module cooling system. Refer to Drive Motor Generator Power Inverter Module Cooling System Draining and Filling . Remove the right side radiator surge tank clamp brackets from the impact bar. Refer to Radiator Surge Tank Clamp Bracket Replacement (Right Side) Radiator Surge Tank Clamp Bracket Replacement (Left Side) . Remove the electric differential drive motor power inverter module cooling hose from the drive motor generator power inverter module. Refer to Electric Differential Drive Motor Power Inverter Module Cooling Hose Replacement (PE TPIM to LTR) . Disconnect the engine wiring harness connectors from the drive motor generator power inverter module to access generator control module coolant hose retaining clip. Disconnect the engine harness connector from the accessory DC power control (APM) module.
1	Generator Control Module Coolant Hose Retaining Clip (Qty: 2)
2	Generator Control Module Coolant Hose Connector (Qty: 2)
3	Generator Control Module Coolant Hose Clamp (Qty: 2) Procedure Reposition the generator control module coolant hose clamp using BO-38185 hose clamp pliers. Special Tools BO-38185 Hose Clamp Pliers For equivalent regional tools, refer to Special Tools .
4	Generator Control Module Coolant Hose Procedure Fill the cooling system to the proper level. Refer to Drive Motor Generator Power Inverter Module Cooling System Draining and Filling . Inspect the cooling system for leaks.