B1345 Ford Code - Heated Backlite Input Circuit Short to Ground
Quick Answer
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. Common causes include Faulty Heated Rear Window Relay, Faulty Heated Rear Window Switch, Faulty Heated Rear Window Grid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1345 Ford indicates Heated Backlite Input Circuit Short to Ground.
- Common causes
- Common causes include Faulty Heated Rear Window Relay, Faulty Heated Rear Window Switch, Faulty Heated Rear Window Grid.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1345 Ford Description
What are the Possible Causes of the DTC B1345 Ford?
- Faulty Heated Rear Window Relay
- Faulty Heated Rear Window Switch
- Faulty Heated Rear Window Grid
- Faulty Smart Junction Box (SJB)
How to Fix the DTC B1345 Ford?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1345 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1345 Ford Code
1. What does the OBDII code B1345 mean on a Ford vehicle?
The B1345 code indicates a problem in the Heated Backlite Input Circuit, specifically a short to ground.
2. What are the common symptoms of the B1345 code?
Symptoms may include the rear defroster not functioning, a blown fuse, or warning lights on the dashboard.
3. What causes the B1345 Heated Backlite Input Circuit Short to Ground?
Common causes include damaged wiring, a faulty rear defroster switch, or a shorted rear window heating grid.
4. Can I drive my Ford with the B1345 code?
Yes, but the rear defroster may not work, which could reduce visibility in cold or rainy conditions.
5. How do you diagnose the B1345 code?
A technician will inspect the wiring and connectors for damage, test the rear defroster switch, and check for continuity in the circuit.
6. How can I fix the B1345 code on my Ford?
Repairs may involve replacing or repairing damaged wiring, fixing a shorted rear defroster grid, or replacing a faulty switch.
7. Can a blown fuse cause the B1345 code?
Yes, a blown fuse in the rear defroster circuit can result in this code being triggered.
8. How much does it cost to repair the B1345 code?
Repair costs vary depending on the issue but typically range from $50 for a fuse replacement to $500 for a new rear window.
9. Is the B1345 code specific to Ford vehicles?
While the code is commonly associated with Ford, other manufacturers may have similar codes for rear defroster issues.
10. Can a DIYer fix the B1345 code?
Yes, if you're comfortable inspecting and repairing wiring or replacing components, but professional help may be needed for complex issues.
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