The B1248 code indicates a potential issue with the multifunction switch position in the Steering Column Control Module (SCCM). This code is triggered when the SCCM sends a turn signal switch_status message to the Body Control Module (BCM) while the multifunction switch is in the left or right TURN position.
Symptoms of the B1248 code may include malfunctioning turn signals or hazards, non-responsive switches, or issues with other functions controlled by the multifunction switch.
There are several possible causes for the B1248 code, including faulty components within the SCCM, such as the turn signal switch, or poor electrical connections.
To fix the B1248 code, it is recommended to have the issue diagnosed and resolved by a professional. They will be able to accurately identify the faulty component or electrical connection and provide an efficient resolution.
B1248 Code: Electrical Issues with the turn signal switch
What does it mean
The B1248 code means there may be electrical issues with the turn signal switch. This can lead to malfunctioning turn signals, increasing the risk of accidents.
It’s important to address the code promptly by having it diagnosed and fixed by a professional to ensure proper functioning of the vehicle’s electrical system and avoid potential safety hazards.
What are the symptoms
The B1248 code has symptoms that include an illuminated Engine Light on the vehicle’s dashboard. This indicates a problem with the right rear turn indicator circuit. It does not directly affect the vehicle’s performance, but it could impact safety if the turn signals are not working properly.
Apart from the Engine Light, there may not be any other specific warning signs. However, if the right rear turn indicator is malfunctioning, the driver may notice that the turn signals do not work correctly.
What are the causes
Causes of B1248 Code:
- Faulty right rear turn indicator
- Problem with the turn indicator harness
- Poor electrical connection in the turn indicator circuit
- Malfunctioning Body Control Module (BCM)
- Other unknown causes
What Tools are Needed to diagnose
To diagnose the B1248 code, the technician will need specific diagnostic tools. These tools are necessary to accurately identify and resolve the issues related to the code. Here are the commonly required tools for diagnosing the B1248 code:
- OBD-II Scanner: This tool retrieves the trouble codes stored in the vehicle’s onboard computer system. It provides valuable information about the specific issue causing the code.
- Multimeter: A multimeter measures voltage, resistance, and continuity in the electrical circuits. It helps the technician identify any faults or abnormalities in the wiring harness, connectors, or components.
- Wiring Diagrams: These diagrams visually represent the electrical circuits in the vehicle. They help the technician trace the wiring and pinpoint the exact location of any faults or shorts.
- Test Light: A test light checks for the presence of voltage at various points in the electrical system. It helps the technician determine if power is reaching the intended components.
How to fix Step by Step
Step 1: Begin troubleshooting by checking the possible causes listed for the B1248 code. These include a faulty right rear turn indicator, an open or shorted harness, or a poor electrical connection in the right rear turn indicator circuit.
Step 2: Visually inspect the wiring harness and connectors for any signs of damage. Look for broken, bent, pushed out, or corroded connector pins.
Step 3: If any components are found to be damaged, they should be repaired or replaced accordingly.
Step 4: It is important to note that specific makes may have different problems associated with the B1248 code. Therefore, it is recommended to consult factory service manuals or seek professional assistance for a more comprehensive diagnosis.
What are the Common Diagnosis Mistakes
Common Diagnosis Mistakes for the B1248 code can result in incorrect troubleshooting and potential misdiagnosis of the problem. To ensure a successful repair process, it is important to avoid these common misdiagnoses for the B1248 code.
Here are some frequently overlooked causes of the B1248 code:
- Failure to check the right rear turn indicator: Neglecting to inspect the functionality of the right rear turn indicator can lead to a misdiagnosis.
- Ignoring poor electrical connections: Overlooking poor electrical connections in the right rear turn indicator circuit can result in an inaccurate diagnosis.
- Neglecting to test the body control module (BCM): Failing to test the BCM can lead to a misdiagnosis as it may be the main cause of the B1248 code.
- Not considering other potential causes: It is crucial to explore all possible causes, even those not listed, to avoid overlooking the true source of the issue.
What is the Repair Cost
The repair cost for B1248 code varies depending on factors like location, make, model, and engine type. Factors affecting the cost include issue complexity, need for specialized tools, and labor rates.
A professional diagnosis at a repair shop is recommended to accurately determine the root cause and repair the issue.
Can I drive safely with this code?
Driving with the B1248 code is not recommended as it can affect turn signal functionality, posing safety risks. This code indicates a fault in the right rear turn indicator circuit, potentially leading to non-functioning turn signals.
Inspect wiring harness and connectors for damage, but it’s best to have a professional diagnose and repair the issue for safe driving.
Wrapping Up
The B1248 code indicates a potential issue with the multifunction switch position in the Steering Column Control Module.
Possible causes include faulty turn indicators, wiring harness issues, poor electrical connections, or a faulty Body Control Module.
It is important to visually inspect the related components and have the code diagnosed by a professional for accurate resolution.
Driving with this code is not recommended as it may affect the functionality of turn signals.