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B1210 is a diagnostic trouble code (DTC) for "EIC Switch-2 Assembly Circuit Open". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
A B1210 trouble code indicates that an electrical circuit in the vehicle's electronic instrument cluster (EIC) is incomplete.
The electronic instrument cluster is a modern replacement in some newer vehicles for an analog dashboard. In the case of a B1210 trouble code, the Switch 2 assembly circuit has been reported as being incomplete. For whatever reason this may be, the result is usually a failure of the EIC to report usual statistics like speed and fuel supply.
Because a B1210 involves an incomplete electrical circuit in the EIC, the cause will typically lie somewhere along the circuit itself. Damaged, disconnected and/or faulty wiring is the most common cause of a B1210 code. Faulty components in the EIC may also be to blame for this issue.
In rare cases, the trouble report itself may be faulty. The Engine Control Module (ECM) may be to blame for mistakenly storing a trouble code. however, this instance should only be considered once all other potential issues have been exhausted.
In the instance of a B1210 code, the dashboard display will likely fail, making it impossible to accurately gauge statistics like speed or the proper fuel level. Additionally, a stored B1210 trouble code and illuminated trouble lamp will also accompany a B1210 scenario. These symptoms are purely for the sake of diagnosing the problem.
A B1210 code may be verified first by using an OBD-II code reader in tandem with the vehicle's computer. Using a voltmeter, different segments of the EIC Switch 2 assembly circuit may be tested to help pinpoint the circuit blocker. Any wiring and electrical connectors should be checked for signs of corrosion, wear, damage or disconnection. Components relevant to the EIC should be inspected for signs of fault or damage.
Because body-related trouble codes are model-specific, one B-class code description may be mistook for another and mistakenly repaired in lieu of the real problem.
If the electronic instrument cluster is not working, many of the vehicle's essential statistics such as speed and fuel level will be unknown or unreliable to the operator. While this does not necessarily pose a threat to the vehicle's drivability, having important data restricted can make driving a B1210-inflicted car risky and even dangerous.
Repairs that may fix the B1210 code include:
Following repairs, the vehicle should be retested to ensure the issue has been solved.
Body-related codes are often specific to vehicle models. Certain codes may vary in meaning depending on the vehicle in question. Refer to your vehicle manual if you're unsure about the code meaning.
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