B297C Cadillac Code - Driver Door Open Switch Circuit Not Plausible
Quick Answer
The keyless entry control module provides a 12V signal to the driver door open switch signal circuit. Common causes include Faulty Door Latch Assembly-Driver, Door Latch Assembly-Driver harness is open or shorted, Door Latch Assembly-Driver 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
- B297C Cadillac indicates Driver Door Open Switch Circuit Not Plausible.
- Common causes
- Common causes include Faulty Door Latch Assembly-Driver, Door Latch Assembly-Driver harness is open or shorted, Door Latch Assembly-Driver 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 B297C Cadillac Description
The door open switch and the door ajar switch contacts will be open with the door is fully closed, the door switches within the door latch are designed so that the when the door is ajar, the contact in the door ajar switch closes, the voltage is pulled low and the window motor will then send a serial data message to the Body Control Module (BCM) indicating that the door is ajar. When the door is opened further, the contact in the door open switch will then close providing a ground for the door open signal circuit, the keyless entry control module will then detect that the door is open.
What are the Possible Causes of the DTC B297C Cadillac?
- Faulty Door Latch Assembly-Driver
- Door Latch Assembly-Driver harness is open or shorted
- Door Latch Assembly-Driver circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B297C Cadillac?
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 B297C Cadillac 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 B297C Cadillac Code
1. What does the OBDII code B297C mean on a Cadillac?
The code B297C indicates an issue with the driver door open switch circuit, specifically that the signal being received is not plausible or inconsistent with the expected input.
2. What are the common symptoms of the B297C code?
Symptoms may include the driver door not registering as open or closed, interior lights staying on or off incorrectly, and false warnings on the dashboard about the door being ajar.
3. What causes the B297C code to appear?
Common causes include a faulty door ajar switch, damaged wiring to the switch, a loose or corroded electrical connection, or a malfunctioning body control module (BCM).
4. How do you diagnose a B297C code on a Cadillac?
Diagnosis typically involves inspecting the door ajar switch for proper operation, checking the wiring and connectors for damage or corrosion, and using a scan tool to monitor live data from the door switch circuit.
5. Can a faulty door ajar switch trigger the B297C code?
Yes, a faulty door ajar switch is a primary cause of this code, as it may send implausible signals to the body control module.
6. How can the B297C code affect other vehicle functions?
This code can interfere with functions tied to door status, such as locking mechanisms, alarm systems, and interior lighting, potentially causing them to behave erratically.
7. Is it safe to drive with the B297C code active?
While the vehicle may still be drivable, the code could lead to issues like a drained battery if interior lights stay on, so it’s best to address it promptly.
8. How do you fix a B297C code on a Cadillac?
Repairs might involve replacing the door ajar switch, repairing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the body control module.
9. Can a dead battery cause the B297C code?
A dead or weak battery can sometimes cause electrical faults, but the code itself is more directly tied to the door ajar switch circuit and its components.
10. How much does it cost to repair a B297C code?
Repair costs can vary, but replacing a door ajar switch typically costs $100-$250, while wiring repairs or BCM replacement may cost more depending on labor and parts.
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