B1434 Lincoln Code - Wiper Hi/Low Speed Relay Coil Circuit Failure
Quick Answer
The Body Control Module (BCM) monitors the Wiper Hi/Low Speed Relay Coil. Common causes include Faulty Wiper Hi/Low Speed Relay Coil, Wiper Hi/Low Speed Relay Coil harness is open or shorted, Wiper Hi/Low Speed Relay Coil circuit poor electrical connection. 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
- B1434 Lincoln indicates Wiper Hi/Low Speed Relay Coil Circuit Failure.
- Common causes
- Common causes include Faulty Wiper Hi/Low Speed Relay Coil, Wiper Hi/Low Speed Relay Coil harness is open or shorted, Wiper Hi/Low Speed Relay Coil circuit poor electrical connection.
- 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 B1434 Lincoln Description
What are the Possible Causes of the DTC B1434 Lincoln?
- Faulty Wiper Hi/Low Speed Relay Coil
- Wiper Hi/Low Speed Relay Coil harness is open or shorted
- Wiper Hi/Low Speed Relay Coil circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1434 Lincoln?
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 B1434 Lincoln 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 B1434 Lincoln Code
1. What does the OBDII code B1434 mean on a Lincoln?
The code B1434 indicates a failure in the Wiper Hi/Low Speed Relay Coil Circuit, which controls the high and low-speed operation of the windshield wipers.
2. What are the common symptoms of the B1434 code?
Symptoms include the windshield wipers not working at high or low speeds, erratic wiper operation, or the wipers being stuck on one speed.
3. What causes the B1434 code to be triggered?
Common causes include a faulty wiper relay, damaged wiring or connectors in the wiper circuit, or a malfunctioning wiper motor.
4. How do I diagnose the B1434 code?
Check the wiper relay for proper function, inspect the wiring and connectors for damage or corrosion, and test the wiper motor to ensure it operates correctly.
5. Can I still drive my car with the B1434 code active?
Yes, but driving in poor weather conditions without properly functioning wipers can be dangerous, so it’s best to address the issue as soon as possible.
6. How do I fix the B1434 code?
Repairs may include replacing the wiper relay, repairing or replacing damaged wiring or connectors, or replacing the wiper motor if it’s defective.
7. How much does it cost to fix the B1434 code?
The cost can vary, but replacing a wiper relay typically costs $50–$150, while wiper motor replacement may run $200–$400, depending on labor.
8. Can a blown fuse cause the B1434 code?
While not directly related, a blown fuse in the wiper circuit could indicate an underlying electrical issue contributing to the code.
9. Will resetting the code fix the B1434 problem?
No, resetting the code without addressing the underlying issue will temporarily clear the code, but it will return if the problem persists.
10. Do I need a professional to fix the B1434 code?
If you’re comfortable with basic electrical diagnostics and repairs, you may be able to fix it yourself. Otherwise, a professional mechanic can ensure the problem is properly resolved.
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