Engine-Codes - Generic - B1305

B1305 Code - Accessory Delay Relay Coil Circuit Short To Ground

- Code Popularity: 21,374 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC B1305?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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)
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC B1305?

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 connector pins.

Search for B1305 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1305 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the B1305 Code Mean?

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).

B1305 Code - Accessory Delay Relay Coil Circuit Short To Ground

Need more Information on the Code?

Need more information on how to fix the B1305 code? Get Access to Factory Service Manuals

Code B1305 Information for Specific Makes

  • B1305 Ford Accessory Delay Relay Coil Circuit Short To Ground
  • B1305 Lincoln Accessory Delay Relay Coil Circuit Short To Ground
  • B1305 Mercury Accessory Delay Relay Coil Circuit Short To Ground

Need Help with the Code?

Get the B1305 code diagnosed by a professional: Find a repair shop in your area