B19A4 Code - Driver Seat Back Blower Speed Short to Battery
Quick Answer
The Front Seat Climate Control Module (SCME) supplies voltage and ground to the driver seat backrest blower motor. Common causes include Faulty Backrest Blower Motor, Backrest Blower Motor harness is open or shorted, Backrest Blower Motor 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
- B19A4 indicates Driver Seat Back Blower Speed Short to Battery.
- Common causes
- Common causes include Faulty Backrest Blower Motor, Backrest Blower Motor harness is open or shorted, Backrest Blower Motor 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 B19A4 Description
What are the Possible Causes of the DTC B19A4?
- Faulty Backrest Blower Motor
- Backrest Blower Motor harness is open or shorted
- Backrest Blower Motor circuit poor electrical connection
- Faulty Front Seat Climate Control Module (SCME)
How to Fix the DTC B19A4?
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 B19A4 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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Information for Specific Makes
- B19A4 Chrysler — Left Power Sliding Door Control Circuit 1 Low
- B19A4 Dodge — Left Power Sliding Door Control Circuit 1 Low
- B19A4 Ford — Driver Seat Back Blower Speed Short to Battery
- B19A4 Jeep — Left Power Sliding Door Control Circuit 1 Low
- B19A4 Lincoln — Driver Seat Back Blower Speed Short to Battery
- B19A4 Mercury — Driver Seat Back Blower Speed Short to Battery
- B19A4 RAM — Left Power Sliding Door Control Circuit 1 Low
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B19A4 Code
1. What are the common symptoms of OBDII code B19A4 (Driver Seat Back Blower Speed Short to Battery)?
- Common symptoms include the driver seat back blower operating at a single speed only or not functioning at all.
2. What are the possible causes of OBDII code B19A4?
- The code B19A4 may be triggered by a short circuit in the wiring of the driver seat back blower speed control system.
3. How can I diagnose the issue related to code B19A4?
- You can diagnose the issue by inspecting the wiring and connectors related to the driver seat back blower speed control system for any visible damage or shorts.
4. What steps can I take to repair OBDII code B19A4?
- Repairing this code typically involves repairing or replacing any damaged wiring, connectors, or components in the driver seat back blower speed control circuit.
5. Can a DIY enthusiast fix OBDII code B19A4 at home?
- While it is possible for experienced DIY enthusiasts to fix this issue at home, it is recommended to consult a professional if you are not familiar with automotive electrical systems.
6. Is it safe to continue driving with OBDII code B19A4 unresolved?
- It is not recommended to continue driving with this code unresolved, as it can lead to further damage to the driver seat back blower speed control system.
7. How much does it typically cost to repair OBDII code B19A4 at a repair shop?
- The cost of repairing OBDII code B19A4 at a repair shop can vary depending on the extent of the damage and the labor rates in your area.
8. Can weather conditions affect the occurrence of OBDII code B19A4?
- Extreme weather conditions or exposure to moisture can potentially worsen the symptoms associated with code B19A4 by causing further damage to the electrical components.
9. Are there any preventive measures to avoid OBDII code B19A4 in the future?
- Regular inspection and maintenance of the driver seat back blower speed control system can help prevent issues like code B19A4 from occurring.
10. Can resetting the vehicle's computer system clear OBDII code B19A4?
- Resetting the computer system may temporarily clear the code, but it is important to diagnose and repair the underlying issue to prevent the code from reoccurring.
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