B1402 Lincoln Code - Driver Power Window Down Switch Circuit Failure
Quick Answer
The driver power window is controlled by the Front Electronics Module (FEM). Common causes include Driver Power Window Regulator Electric Motor, Faulty Master Window Regulator Control Switch, Faulty Front Electronics Module (FEM). 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
- B1402 Lincoln indicates Driver Power Window Down Switch Circuit Failure.
- Common causes
- Common causes include Driver Power Window Regulator Electric Motor, Faulty Master Window Regulator Control Switch, Faulty Front Electronics Module (FEM).
- 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 B1402 Lincoln Description
What are the Possible Causes of the DTC B1402 Lincoln?
- Driver Power Window Regulator Electric Motor
- Faulty Master Window Regulator Control Switch
- Faulty Front Electronics Module (FEM)
- Master Window Regulator Control Switch harness is open or shorted
- Master Window Regulator Control Switch circuit poor electrical connection
How to Fix the DTC B1402 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 B1402 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 B1402 Lincoln Code
1. What are common symptoms of OBDII code B1402 in a Lincoln related to the driver power window switch circuit failure?
- Common symptoms include the inability to operate the driver power window from the switch, erratic window operation, or complete failure of the window to move.
2. What are the possible causes of OBDII code B1402 in a Lincoln indicating driver power window switch circuit failure?
- The code can be triggered by a faulty power window switch, damaged wiring or connectors in the switch circuit, or a malfunction in the power window control module.
3. How can I diagnose the OBDII code B1402 in a Lincoln with a driver power window switch circuit failure?
- Diagnosis involves inspecting the power window switch for physical damage, testing the switch for continuity and proper operation, and checking the wiring and connectors for any signs of damage or corrosion.
4. Can a DIY enthusiast repair OBDII code B1402 in a Lincoln caused by driver power window switch circuit failure?
- Depending on the specific cause, a DIY enthusiast may be able to repair the issue by replacing the faulty power window switch, repairing damaged wiring, or cleaning and securing loose connectors.
5. Is it necessary to reset the OBDII system after repairing the driver power window switch circuit failure in a Lincoln triggering code B1402?
- Yes, it is recommended to clear the OBDII trouble code after repairing the issue to reset the system and ensure that the repair was successful.
6. Are there any safety precautions to consider when working on the driver power window switch circuit in a Lincoln to address OBDII code B1402?
- It is important to disconnect the vehicle's battery before working on any electrical components to prevent the risk of electrical shock or damage to the vehicle's electrical system.
7. Can extreme weather conditions contribute to triggering OBDII code B1402 in a Lincoln due to driver power window switch circuit failure?
- Extreme heat or moisture can potentially cause damage to the power window switch or wiring, leading to issues with the driver power window operation and triggering the OBDII trouble code.
8. What are the typical repair costs associated with addressing OBDII code B1402 in a Lincoln related to driver power window switch circuit failure?
- Repair costs can vary depending on the cause of the issue, but they may range from $100 to $300 for parts and labor if a professional technician is involved.
9. How long does it usually take to repair OBDII code B1402 in a Lincoln attributed to driver power window switch circuit failure?
- The repair time can vary based on the specific cause of the issue and the complexity of the repair, but it typically takes around 1 to 2 hours to diagnose and fix the problem.
10. Can unresolved OBDII code B1402 in a Lincoln due to driver power window switch circuit failure lead to other electrical issues in the vehicle?
- If left unresolved, the underlying issues causing the code may worsen over time and potentially lead to additional electrical problems in the vehicle, affecting other systems.
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