AutoCodes – Mercury – B1C98 Mercury

B1C98 Mercury Code - Left Corner Lamp Circuit Circuit Short

Quick Answer

The Steering Column Control Module (SCCM) monitors the multifunction switch position. Common causes include Faulty Left Corner Lamp, Left Corner Lamp harness is open or shorted, Left Corner Lamp 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: B1C98 Mercury indicates Left Corner Lamp Circuit Circuit Short.
Common causes: Common causes include Faulty Left Corner Lamp, Left Corner Lamp harness is open or shorted, Left Corner Lamp 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.

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Code Popularity 659

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 26, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1C98 Mercury Description

The Steering Column Control Module (SCCM) monitors the multifunction switch position. When the multifunction switch is in the left or right TURN position, the SCCM sends a turn signal switch_status message over the communication network to the Body Control Module (BCM) indicating a request for the left or right turn signal. When the BCM receives a request for a turn signal, the BCM supplies on/off voltage to the appropriate turn lamps.
The timed on/off cycle for turn lamps is determined by the BCM and is set to flash approximately 80 times per minute if both the front and rear turn signal lamps operate correctly. If an individual turn signal lamp is inoperative, the BCM fast flashes the remaining turn lamp approximately 160 times per minute to indicate a bulb outage to the driver. The OBDII sets when the BCM detects the front, rear or exterior mirror turn lamp output is not to factory specifications.

OBDII Code B1C98 Mercury - Left Corner Lamp Circuit Circuit Short - AutoCodes.com — B1C98 Mercury Code - Left Corner Lamp Circuit Circuit Short

What does this mean?

What are the Possible Causes of the DTC B1C98 Mercury?

Faulty Left Corner Lamp
Left Corner Lamp harness is open or shorted
Left Corner Lamp circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1C98 Mercury?

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 does this mean?

Code Tech Notes

B1C98:11 Left Corner Lamp Circuit Circuit Short To Ground
B1C98:15 Left Corner Lamp Circuit Circuit Short To Battery or Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1C98 Mercury 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1C98 Mercury Code

What does the OBDII code B1C98 indicate for my Mercury vehicle?

The OBDII code B1C98 indicates a short circuit in the left corner lamp circuit, which affects the operation of the left corner lighting.

What are the common symptoms of the B1C98 code?

Common symptoms include malfunctioning left corner lamps, warning lights on the dashboard, and potentially related electrical issues in the lighting system.

What could cause the B1C98 code to trigger?

Causes may include damaged wiring, a blown fuse, a faulty left corner lamp, or a short circuit in the circuit connecting to the left corner lamp.

How can I diagnose the B1C98 code?

To diagnose the B1C98 code, inspect the left corner lamp wiring and connectors for damage, check the bulb for proper operation, and test the related fuses for continuity.

What repairs are recommended for resolving the B1C98 code?

Repairs may involve replacing damaged wiring, fixing or replacing the left corner lamp, and ensuring that all connections are secure and free of corrosion.

Can I drive my vehicle with the B1C98 code?

While it may be safe to drive, it's advisable to address the B1C98 code promptly to avoid further electrical issues or potential safety hazards due to inadequate lighting.

How can I prevent the B1C98 code from recurring?

Preventative measures include regular inspections of the vehicle's lighting system, ensuring proper installation of bulbs, and protecting wiring from wear and environmental damage.

Will clearing the B1C98 code fix the problem?

Clearing the code may temporarily turn off the warning light, but it won't fix the underlying issue. The root cause must be addressed for a permanent solution.

Is this code specific to certain Mercury models?

The B1C98 code can occur in various Mercury models, particularly those equipped with advanced lighting systems. Always refer to your specific vehicle's manual for precise information.