B1973 Code - Passenger Rear Seat Down Switch Circuit Short To Battery
Quick Answer
The B1973 diagnostic trouble code indicates that there is a short circuit to the battery in the passenger rear seat down switch circuit. Common causes include Damaged wiring in the rear seat switch circuit, Faulty rear seat switch, Short circuit in the control module. 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
- B1973 indicates Passenger Rear Seat Down Switch Circuit Short To Battery.
- Common causes
- Common causes include Damaged wiring in the rear seat switch circuit, Faulty rear seat switch, Short circuit in the control module.
- 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.
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Code B1973 Description
The B1973 diagnostic trouble code indicates that there is a short circuit to the battery in the passenger rear seat down switch circuit. This switch is responsible for controlling the mechanism that allows the passenger rear seat to be folded down or adjusted. When this circuit is shorted to the battery, it can lead to a malfunction in the operation of the switch, causing the seat to not function properly.
Common Causes of B1973
- Damaged wiring in the rear seat switch circuit.
- Faulty rear seat switch.
- Short circuit in the control module.
- Water damage causing a short circuit.
- Corrosion in the electrical connections.
Symptoms of B1973
- Inability to fold down the passenger rear seat.
- Erratic behavior of the rear seat switch.
- Drain on the vehicle's battery.
- Warning light on the dashboard indicating a problem with the rear seat switch.
How to Fix B1973
- Begin by disconnecting the vehicle's battery to prevent any electrical accidents.
- Inspect the wiring harness for any signs of damage, such as fraying or exposed wires. Repair or replace any damaged wiring.
- Check the rear seat switch for proper operation and replace if necessary.
- Test the control module for any shorts or malfunctions and replace if needed.
- Reconnect the battery and test the rear seat switch to ensure it is functioning properly.
Cost to Fix B1973
The cost of repairing a B1973 code can vary depending on the extent of the damage and the specific parts that need to be replaced. On average, the repair costs for this issue can range from $100 to $300, including parts and labor. However, it is essential to note that the actual cost can be higher or lower based on the factors mentioned earlier, so it is recommended to consult with a professional mechanic for a more accurate estimate.
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Code B1973 Information for Specific Makes
- B1973 Buick — High Power Control Fault
- B1973 Cadillac — High Power Control Fault
- B1973 Chevrolet — High Power Control Fault
- B1973 Chrysler — Power Liftgate Open Direction Ratchet Secondary Switch Performance
- B1973 Dodge — Power Liftgate Open Direction Ratchet Secondary Switch Performance
- B1973 GMC — High Power Control Fault
- B1973 Jeep — Power Liftgate Open Direction Ratchet Secondary Switch Performance
- B1973 Pontiac — High Power Control Fault
- B1973 RAM — Power Liftgate Open Direction Ratchet Secondary Switch Performance
- B1973 Saturn — High Power Control Fault
Frequently Asked Questions about B1973 Code
1. What does OBDII code B1973 mean?
Code B1973 indicates a short-to-battery issue in the circuit for the passenger rear seat down switch, which controls the folding mechanism of the rear seat.
2. What are the symptoms of code B1973?
Common symptoms include the rear seat not folding down as expected, an illuminated warning light on the dashboard, or unresponsive seat adjustment controls.
3. What causes code B1973?
The most common causes are damaged wiring, a faulty passenger rear seat down switch, or a short circuit due to corrosion or improper electrical connections.
4. Can I still drive my car with code B1973?
Yes, you can still drive the car, but the rear seat folding function may not work, which could be inconvenient for loading cargo.
5. How do I diagnose code B1973?
Start by visually inspecting the wiring and connectors for the passenger rear seat down switch for damage or corrosion. Use a multimeter to check for a short-to-battery condition.
6. What repairs can fix code B1973?
Repairs may include replacing damaged wiring, repairing corroded connectors, or replacing the faulty passenger rear seat down switch.
7. How much does it cost to fix code B1973?
The repair cost can vary, but replacing a seat down switch typically costs between $50 and $150, while extensive wiring repairs may cost more depending on labor rates.
8. Can I fix code B1973 myself?
If you have basic electrical skills and tools, you can inspect and replace damaged wiring or the switch. However, more complex electrical issues may require professional assistance.
9. Does code B1973 affect other vehicle systems?
Generally, no. This code is specific to the passenger rear seat down switch circuit and does not typically impact other vehicle systems.
10. How can I prevent code B1973 from recurring?
Regularly inspect the wiring and connectors for damage or corrosion, and avoid overloading or putting excessive strain on the rear seat adjustment mechanisms.
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