B1304 - Accessory Delay Relay Coil Circuit Short To Battery

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B1304 Possible Causes

  • Faulty Accessory Delay Relay
  • Accessory Delay Relay harness is open or shorted
  • Accessory Delay Relay circuit poor electrical connection
  • Faulty Smart Junction Box (SJB)

First diagnose B1304 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the B1304 code

    Labor: 1.0

    The cost of diagnosing the B1304 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B1304 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1304 Meaning

The accessory delay relay receives voltage at all times from the Smart Junction Box (SJB). The SJB controls the coil side ground of the accessory delay relay and activates the accessory delay relay when the ignition switch is in the ON position. The accessory delay relay remains active for an additional 10 minutes when the ignition switch is in the OFF position or until the driver door is opened. The accessory delay relay provides voltage to the door lock switches, power windows and roof opening panel (if equipped).
OBDII Code B1304 - Accessory Delay Relay Coil Circuit Short To Battery - Engine-Codes.com

B1304 More Information

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B1304 Information for specific makes

  • B1304 FORD Accessory Delay Relay Coil Circuit Short To Battery
  • B1304 LINCOLN Accessory Delay Relay Coil Circuit Short To Battery
  • B1304 MERCURY Accessory Delay Relay Coil Circuit Short To Battery

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