Horn Relay

Remove and replace the horn relay located in the power distribution center under the hood to restore horn functionality.

Warnings

Tools required

Parts

• Horn relay × 1 — Mopar 68105077AA or equivalent mini ISO relay

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn ignition off and remove key
3. Allow engine to cool if recently operated
4. Locate the power distribution center (black fuse/relay box) on the driver side of the engine compartment near the battery

Procedure

1. 1

   Disconnect negative battery cable
   Using a 10mm socket, loosen the negative battery terminal bolt and remove the cable from the battery post. Isolate the cable away from the battery to prevent accidental reconnection.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)
2. 2

   Open power distribution center cover
   Release the locking tabs on the sides of the power distribution center cover by pressing them inward. Lift the cover upward to access the relays and fuses. The relay map is printed on the underside of the cover.
3. 3

   Locate the horn relay
   Reference the relay diagram on the underside of the cover to identify the horn relay location. The horn relay is typically labeled 'HORN' and is a mini ISO relay. Note the orientation of the relay before removal.
4. 4

   Remove the horn relay
   Grasp the horn relay firmly and pull straight up to remove it from its socket. If the relay is difficult to grasp, use needle nose pliers to gently extract it. Do not rock or twist the relay excessively to avoid damaging the socket terminals.
5. 5

   Inspect relay socket
   Examine the relay socket terminals for corrosion, discoloration, or damage. Check for pushed-back pins or debris in the socket. Clean any corrosion with electrical contact cleaner if present.
6. 6

   Install new horn relay
   Align the new horn relay with the socket, ensuring proper orientation by matching the terminal configuration. Press the relay firmly into the socket until it is fully seated and flush with the surrounding relays. The relay should click into place.
7. 7

   Close power distribution center cover
   Position the cover over the power distribution center and press down firmly until all locking tabs engage with an audible click. Ensure the cover is fully seated and weather-tight.
8. 8

   Reconnect negative battery cable
   Clean the battery post and cable terminal if necessary. Place the negative cable onto the negative battery post and tighten the terminal bolt to specification using a 10mm socket and torque wrench.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Ensure power distribution center cover is properly latched to prevent moisture intrusion
2. Verify battery terminal is tight and cannot be rotated by hand

Verification

• Turn ignition to ON position without starting engine
• Press horn button on steering wheel to confirm horn operates properly
• Test horn with engine running to verify operation under load
• Check that horn sounds with appropriate volume and tone
• Reset clock and radio presets as needed

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