AutoCodes – Generic – B1C98

B1C98 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 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,614
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 26, 2019
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Code B1C98 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 - Left Corner Lamp Circuit Circuit Short - AutoCodes.com
B1C98 Code - Left Corner Lamp Circuit Circuit Short

What are the Possible Causes of the DTC B1C98?

  • 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?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1C98 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.

Need more information about the B1C98 code?

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Information for Specific Makes

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 Code

1. What are the common symptoms of OBDII code B1C98 (Left Corner Lamp Circuit Short)?

- Common symptoms include the left corner lamp not functioning properly, flickering, or not turning on at all.

2. What are the possible causes of OBDII code B1C98?

- Possible causes include a short circuit in the left corner lamp circuit, damaged wiring, a faulty lamp assembly, or a malfunctioning control module.

3. How can I diagnose the issue related to OBDII code B1C98?

- You can diagnose the issue by visually inspecting the wiring and lamp assembly for any damage, testing the continuity of the circuit, and using a diagnostic scanner to retrieve specific fault codes.

4. Can I still drive my vehicle with OBDII code B1C98 present?

- It is generally safe to drive your vehicle with this code, but it is recommended to address the issue promptly to ensure proper functionality of the left corner lamp.

5. How can I repair OBDII code B1C98 myself?

- DIY repair tips include checking and repairing any damaged wiring, replacing the faulty left corner lamp assembly, or resetting the control module after fixing the short circuit.

6. Is it necessary to visit a mechanic for OBDII code B1C98?

- While you can attempt DIY repairs, it is advisable to consult a qualified mechanic if you are unfamiliar with automotive electrical systems to ensure proper diagnosis and repair.

7. What is the typical cost to fix OBDII code B1C98 at a repair shop?

- The cost of fixing this issue at a repair shop can vary depending on the extent of the damage and the parts needed, but it typically ranges from $100 to $300.

8. Can resetting the fault codes resolve OBDII code B1C98 temporarily?

- Resetting the fault codes may temporarily turn off the warning light, but it will not fix the underlying issue causing OBDII code B1C98.

9. Will OBDII code B1C98 cause my vehicle to fail an emissions test?

- OBDII code B1C98 is related to a corner lamp circuit issue and is unlikely to cause your vehicle to fail an emissions test.

10. How can I prevent OBDII code B1C98 from recurring in the future?

- To prevent OBDII code B1C98 from recurring, regularly inspect and maintain the electrical components of your vehicle, such as the corner lamp circuit, to ensure they are in good working condition.

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