Hyundai Tucson: Power Relay Assembly (PRA) - Removal
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Electrical System / 48V Battery System / Power Relay Assembly (PRA) - Removal
Removal
- Remove the PRA assembly.
(Refer to 48V Battery System - "Power Relay Assembly (PRA)")
- Remove the PRA cover.
- Remove the mounting bolts and remove the power relay busbar (A).
- Disconnect the main relay connector (A).
- Remove the main relay (B).
Installation
- Install in the reverse order of removal.
Removal
- Turn ignition switch OFF and disconnect the battery (-) terminal.
- Remove the 48V battery assembly.
(Refer to 48V Battery System - "Repair procedures")
- Remove the battery cover (A) after loosening the mounting bolts.
Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
- Remove the terminal capacitor (A) after loosening the mounting bolts.
Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
- Remove the mounting uuts and remove the battery module (-) busbar (A).
Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
- Remove the mounting nuts and remove the battery module (+) busbar (A).
Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
- Remove the BMS wiring harness terminal after loosening the mounting bolts (A).
Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
- Remove the 48V battery case assembly after loosening the mounting bolts (A).
Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
- Disconnect the PRA extension connector (A) and the BMS & LDC connectors (B).
- Disconnect the battery temperature sensor extension connector (C).
- Disconnect the cooling blower fan connector (A).
- Remove the battery cooling blower unit (B) from the battery module (A).
Tightening torque : 5.9 - 9.8 N.m (0.6 - 1.0 kgf.m, 4.3 - 7.2 lb-ft)
Installation
- Install in the reverse order of removal.
READ NEXT:
Battery Pack Assembly Inlet Duct/ Battery Pack
Assembly Outlet Duct
Removal and
Installation
Battery Pack Assembly Inlet Duct
Turn the ignition switch OFF and disconnect the battery (-) terminal.
Remove the luggage board (A).
Separate the inlet cooling duct (A) in the direction of the arrow.
Tigh
Battery Module Inlet Duct
Turn ignition switch OFF and disconnect the battery (-) terminal.
Remove the 48V battery assembly
(Refer to 48V Battery System - "Repair procedures")
Remove the battery cover (A) after loosening the mounting bolts.
Tightening
Battery Module Inlet B Duct
Remove the 48V battery assembly.
(Refer to 48V Battery System - "Repair procedures")
Remove the battery pack assembly inlet duct B (A) after loosening the
mounting bolts.
Install in the reverse order of removal.
Sp
SEE MORE:
Wiring Precautions
SRS wiring can be identified by special yellow outer covering Observe the
instructions described in
this section.
Never attempt to modify, splice, or repair SRS wiring. If there is an
open or damage in SRS wiring,
replace the harness.
General Information
Basic Troubleshooting
Basic Troubleshooting Guide
Customer Problem Analysis Sheet
Basic Inspection Procedure
Measuring Condition of Electronic Parts' Resistance
The measured resistance at high temperature after vehicle running may be
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual