Midtronics GRX-5100 L Quick Training Manual Download Page 1 | Manualshive

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NiMH Battery Rescue Charging with the GRX-5100

Quick Training Guide – QT015A

Click the ENTER button to view the Quick Training Guide.

This Quick Training Guide provides an overview of the components and operation of the High Voltage
Battery Service Unit (GRX-5100) and the HEV Workstation for performing rescue charging of NiMH
batteries in Toyota hybrid vehicles. Prepared only for technicians that are Toyota Hybrid System certified.

Always wear the appropriate Personal Protective Equipment (PPE) provided in the HEV Workstation
when working with High Voltage.

Always use the safing procedures detailed in the repair information for the specific hybrid model you
are working with.

©Toyota Motor Sales, U.S.A., Inc., December 16, 2015

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Summary of Contents for GRX-5100 L

Page 1: ...HEV Workstation for performing rescue charging of NiMH batteries in Toyota hybrid vehicles Prepared only for technicians that are Toyota Hybrid System certified CAUTIONS Always wear the appropriate P...

Page 2: ...hicle you re servicing for the specific location and procedure for removing the service plug grip Before Servicing 1 Turn the vehicle power switch OFF and remove the key from the interior detection ar...

Page 3: ...power switch OFF and turn off the GRX 5100 Disconnect GRX 5100 Disconnect the GRX 5100 power cord and remove the negative battery terminal of the auxiliary battery Remove the service plug grip Disconn...

Page 4: ...tions and then press the button under Next 6 Instructions The only wire in the low voltage cable Cable R is the green bonding wire that was connected to the vehicle in Screens Part 1 These are the scr...

Page 5: ...reen appears connect the low voltage cable as instructed in the Repair Manual then connect the other end to the GRX 5100 GRX 5100 Cable Connections Click the tabs at the top and side to view each sect...

Page 6: ...s the button under Next Charge Wait while the GRX 5100 performs an HV bonding test Charge Connect the Techstream to DLC3 and navigate to the Battery Charge Active Test Turn the Active Test ON and then...

Page 7: ...ions for rescue charging Note that the high voltage cable that connects to the vehicle is model specific Cabling Overview Verify Frame Wire Ground Low Voltage Cable High Voltage Cables Interlock Cover...

Page 8: ...ield line of the frame wire is not securely connected to body ground the error message Battery not detected or HV bonding test failed may appear and the GRX 5100 will not operate If the resistance is...

Page 9: ...low voltage cable and the green HV EV bonding cable are one and the same cable R Because 2001 2009 Prius models continue to use an green HV EV bonding cable AND a low voltage cable the instructions on...

Page 10: ...cable Cable V to the high voltage fuse box 4 Connect Cable V to the GRX 5100 High Voltage Cables Verify Frame Wire Ground Low Voltage Cable High Voltage Cables Cabling Overview High Voltage Cable Use...

Page 11: ...if the frame wire is disconnected It is not possible to charge the battery with this interlock open so an interlock cover is provided in drawer 2 of the HEV Workstation When installed the interlock co...

Page 12: ...procedure again As charging is taking place monitor the battery voltage If battery is insufficiently charged not above minimum voltage after first 10 minute cycle repeat the charge cycle Battery Char...

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