electrical

Battery Cable - Negative

for 2022 Rivian EDV 500 Dual Motor AWD (EDV) · AWD

Difficulty

Advanced

Time

2.0 h

Tools

Steps

This procedure covers the removal and replacement of the negative battery cable on a 2022 Rivian EDV 500 electric delivery vehicle, including high-voltage system isolation and proper reconnection procedures.

Warnings

⚠️This vehicle contains high-voltage components exceeding 400V DC. Failure to follow proper lockout/tagout procedures can result in severe injury or death from electrocution.

⚠️Only technicians trained in electric vehicle high-voltage systems should perform this repair. Verify certification before proceeding.

⚠️Always verify the high-voltage system is de-energized using a multimeter before touching any cables or connections.

⚠The negative battery cable carries high current. Ensure all jewelry, watches, and conductive items are removed before working.

⚠Disconnecting the 12V battery will erase adaptive memory. Vehicle may exhibit different behavior until systems relearn.

Tools required

High-voltage insulated gloves rated Class 00 or higherEssential

Digital multimeter with high-voltage capabilityEssential

Socket set (metric)Essential

Torque wrenchEssential

Battery terminal puller

Wire brush

Dielectric grease

Rivian diagnostic software/scan toolEssential

Safety cones and warning signsEssential

Parts

Negative battery cable assembly × 1 — Use OEM specification
Battery terminal hardware kit × 1 — Use OEM specification
High-voltage service plug lock × 1 — Use OEM specification

Preparation

Park vehicle on level surface and engage parking brake
Place safety cones and warning signs around vehicle to prevent unauthorized access during service
Ensure vehicle has been powered off for at least 5 minutes to allow capacitors to discharge
Document any stored diagnostic trouble codes using Rivian diagnostic software
Photograph battery cable routing and connections for reinstallation reference
Put on high-voltage insulated gloves and safety equipment

Procedure

1
Disable high-voltage system
Access the high-voltage service disconnect located in the front storage compartment. Remove the service disconnect cover and pull the service disconnect plug to isolate the high-voltage battery pack. Install the service plug lock to prevent accidental reconnection. Attach lockout/tagout tag with technician name and date.
⚠️Never skip this step. The high-voltage system must be disabled before proceeding.
2
Wait for capacitor discharge
Wait a minimum of 5 minutes after removing the service disconnect to allow high-voltage capacitors to fully discharge. Do not proceed until the full waiting period has elapsed.
3
Verify system de-energization
Using a high-voltage rated multimeter, verify that no voltage is present between the high-voltage positive and negative bus bars. Voltage reading should be 0V DC. If any voltage is detected, wait an additional 5 minutes and retest. Do not proceed if voltage is present.
⚠️This verification step is mandatory. Never assume the system is safe without measuring.
4
Disconnect 12V auxiliary battery
Locate the 12V auxiliary battery in the front storage compartment. Disconnect the negative terminal first, then the positive terminal. Secure cables away from battery posts to prevent accidental reconnection.
5
Remove underbody panels
Remove the underbody protective panels beneath the battery pack area to access the negative battery cable routing. Remove all fasteners and carefully lower panels, noting the location of any clips or mounting hardware.
6
Locate negative battery cable
Identify the negative battery cable running from the high-voltage battery pack to the vehicle chassis ground point. Trace the entire cable path and identify all connection points, mounting brackets, and routing clips.
7
Disconnect cable at battery pack
Remove the fasteners securing the negative cable terminal to the battery pack negative terminal. Use a socket wrench to loosen the connection. If corrosion is present, use a battery terminal puller to avoid damaging components. Do not twist or pry against the battery pack housing.
8
Disconnect cable at chassis ground
Locate the negative cable chassis ground connection point. Remove the mounting bolt securing the cable terminal to the chassis ground stud. Clean the ground point with a wire brush to ensure good electrical contact during reinstallation.
9
Remove cable routing hardware
Release all cable routing clips and remove mounting brackets along the cable path. Note the exact routing for reinstallation to prevent interference with other components or moving parts.
10
Remove old negative cable
Carefully remove the negative battery cable from the vehicle, ensuring it does not catch on any components. Inspect the cable pathway for any damage or wear that may have contributed to cable failure.
11
Inspect connections and terminals
Inspect both the battery pack terminal and chassis ground stud for corrosion, damage, or signs of overheating. Clean all contact surfaces with a wire brush. If any damage is found, repair or replace affected components before installing the new cable.
12
Install new negative cable
Route the new negative battery cable along the same path as the original, ensuring it does not contact sharp edges, moving parts, or heat sources. Install all routing clips and mounting brackets to secure the cable in its proper position.
13
Connect cable at chassis ground
Apply a thin layer of dielectric grease to the chassis ground stud. Install the cable terminal onto the ground stud and secure with the mounting bolt. Torque to manufacturer specification (consult service manual for exact value).
14
Connect cable at battery pack
Apply a thin layer of dielectric grease to the battery pack negative terminal. Install the cable terminal onto the battery pack terminal and secure with fasteners. Torque to manufacturer specification (consult service manual for exact value). Ensure connection is tight and secure.
15
Reinstall underbody panels
Reinstall all underbody protective panels, ensuring all fasteners and clips are properly secured. Verify panels are seated correctly and do not interfere with the cable routing.
16
Reconnect 12V auxiliary battery
Reconnect the 12V auxiliary battery, connecting the positive terminal first, then the negative terminal. Torque terminals to specification.
17
Restore high-voltage system
Remove the service plug lock and reinstall the high-voltage service disconnect plug. Ensure it is fully seated and locked in place. Reinstall the service disconnect cover. Remove lockout/tagout tag.

Reassembly

Double-check all electrical connections are tight and properly torqued
Verify negative cable routing does not interfere with any moving parts or heat sources
Ensure all underbody panels are reinstalled and secured properly
Remove all tools and equipment from vehicle and work area

Verification

Using Rivian diagnostic software, verify no high-voltage isolation faults are present
Check for proper 12V system voltage (approximately 12.6-13.2V with vehicle off)
Power on the vehicle and verify all systems initialize without errors
Verify the vehicle can enter ready-to-drive mode
Check that all warning lights extinguish after startup
Perform a low-speed test drive to verify proper vehicle operation
Recheck all diagnostic trouble codes and verify none are related to high-voltage system or grounding issues
Visually inspect cable connections after test drive for any signs of looseness or overheating