Engine-Codes - Generic - B1345

B1345 Code - Heated Backlite Input Circuit Short to Ground

- Code Popularity: 15,000 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1345?

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 Heated Rear Window Relay
  • Faulty Heated Rear Window Switch
  • Faulty Heated Rear Window Grid
  • Faulty Smart Junction Box (SJB)
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How to Fix the DTC B1345?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1345 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 B1345 Code Mean?

When the rear defrosts switch on the climate control assembly is pressed, a ground signal is sent to the Smart Junction Box (SJB) on the circuit. The SJB then grounds circuit. This energizes the heated rear window relay, allowing voltage to be supplied to the heated rear window grid through the circuit. The OBDII code sets when the Heated Backlite Input is not to factory specifications.

B1345 Code - Heated Backlite Input Circuit Short to Ground

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Code B1345 Information for Specific Makes

  • B1345 Ford Heated Backlite Input Circuit Short to Ground
  • B1345 Infiniti Front Door Satellite Sensor Left Communication Error
  • B1345 Lincoln Heated Backlite Input Circuit Short to Ground
  • B1345 Mercury Heated Backlite Input Circuit Short to Ground
  • B1345 Nissan Front Door Satellite Sensor Left Communication Error

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