Battery Cables - Both

This procedure covers the replacement of both positive and negative battery cables on a 2019-2024 Toyota RAV4 with a 2.5L I4 gas engine, including removal of battery, cable routing, and proper terminal connections.

Warnings

Tools required

Parts

• Positive battery cable assembly × 1 — Use OEM specification for 2019-2024 RAV4 2.5L
• Negative battery cable assembly × 1 — Use OEM specification for 2019-2024 RAV4 2.5L

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off all electrical accessories and remove key from ignition
3. Allow engine to cool if recently operated
4. Open hood and secure with prop rod
5. Locate battery in engine compartment on driver side
6. Take note of cable routing and attachment points for reinstallation

Procedure

1. 1

   Disconnect negative battery terminal
   Using a 10mm socket, loosen the negative (black) battery terminal bolt. Remove the terminal from the battery post and secure it away from the battery to prevent accidental contact. Do not allow the terminal to touch any metal surfaces.
2. 2

   Disconnect positive battery terminal
   Using a 10mm socket, loosen the positive (red) battery terminal bolt. Remove the terminal from the battery post. Cover the positive terminal with a shop towel to prevent accidental short circuits during the procedure.
3. 3

   Remove battery hold-down
   Locate the battery hold-down bracket at the base of the battery. Using a 10mm socket, remove the battery hold-down bolt. Lift the hold-down bracket away and set aside.
   Torque spec

   Battery Hold-Down Bolt11 Nm (8 lb-ft)
4. 4

   Remove battery
   Carefully lift the battery straight up and out of the battery tray. Battery weighs approximately 35-40 lbs. Set battery aside in a safe location away from work area.
5. 5

   Remove positive cable connections
   Trace the positive cable from the battery tray to the fuse box and starter connections. Using a 12mm socket, remove the bolts securing the positive cable to the fuse box and any other connection points. Note the routing path and any clips or ties securing the cable.
6. 6

   Remove negative cable and ground connections
   Using a 12mm or 14mm socket as needed, remove the ground cable bolt at the chassis ground point near the battery tray. Trace the negative cable and remove the ground strap bolts connecting to the engine block and body. Remove the negative cable assembly.
   Torque spec

   Ground Bolt14 Nm (10 lb-ft)

   Ground Cable Bolt14 Nm (10 lb-ft)

   Ground Strap Bolts12 Nm (9 lb-ft)
7. 7

   Clean battery tray and connection points
   Using a wire brush and baking soda solution if needed, clean all corrosion from the battery tray, ground mounting points, and positive cable connection surfaces. Dry thoroughly with shop towels. Ensure all mating surfaces are clean and free of corrosion for proper electrical contact.
8. 8

   Install new negative cable assembly
   Route the new negative cable following the same path as the original. Connect ground strap bolts to engine block and body ground points. Hand-tighten all bolts before torquing. Torque ground cable bolt and ground strap bolts to specification using a torque wrench.
   Torque spec

   Ground Cable Bolt14 Nm (10 lb-ft)

   Ground Strap Bolts12 Nm (9 lb-ft)
9. 9

   Install new positive cable assembly
   Route the new positive cable through the same path as the original, ensuring it does not contact sharp edges or hot engine components. Connect to fuse box and starter locations. Hand-tighten all connection bolts, then torque to specification. Secure cable with any original clips or ties.
10. 10

    Reinstall battery
    Clean battery posts with wire brush or battery terminal cleaner. Carefully lower battery into battery tray, ensuring it is fully seated. Install battery hold-down bracket and torque hold-down bolt to specification.
    Torque spec

    Battery Hold-Down Bolt11 Nm (8 lb-ft)
11. 11

    Connect positive battery terminal
    Remove the shop towel from the positive terminal. Clean the terminal end with a wire brush. Place the positive (red) cable terminal onto the positive battery post. Apply dielectric grease if desired. Torque the battery terminal bolt to specification using a torque wrench. Do not overtighten.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)
12. 12

    Connect negative battery terminal
    Clean the negative terminal end with a wire brush. Place the negative (black) cable terminal onto the negative battery post. Torque the battery terminal bolt to specification using a torque wrench. Do not overtighten. Expect a small spark as connection is made.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Verify all cable connections are tight and properly torqued
2. Ensure no tools or debris are left in engine compartment
3. Verify battery cables are properly routed and secured with clips
4. Close hood after verification is complete

Verification

• Turn ignition to ON position and verify dashboard lights illuminate normally
• Start engine and verify it cranks and starts normally without hesitation
• Check for any warning lights on dashboard related to charging system
• Test basic electrical functions: headlights, horn, power windows, radio
• Initialize power windows by rolling each window fully down, then fully up and holding for 2 seconds
• Reset clock and radio presets as needed
• Allow vehicle to idle for 10-15 minutes to allow ECU to relearn idle parameters
• Verify no smoke, burning smell, or unusual sounds from battery area

Related trouble codes on this vehicle

Codes that commonly send this job to the bay — tap one for symptoms, causes, and diagnostic steps.

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