The first and most common cause of a B2300 code is a defective driver seat memory position sensor. This sensor is put to use every time your vehicle turns on as it triggers the memory position function to activate which automatically moves the seat to your stored and desired position. Because this is a frequently-used sensor, it is prone to failing. Another cause of this code setting is an open or shorted sensor harness. Also, the circuit leading to the sensor can be disrupted or damaged and cause the sensor to cease communications with the BCM. This also applies to B2301 but for the passenger seat side. Sometimes, a poor electrical connection is the only cause of the issue but there are instances in which the BCM itself could be faulty or damaged, causing either code to be set.

As for the B1317 and B1218 codes, their common cause is typically a defective battery. It is important to note that a defective battery could only be a symptom, and the root cause could lie elsewhere in the electrical system. This is why a qualified technician with experience addressing these issues should test the entire charging system. As for other parts of the system, the culprit there is often a faulty alternator or a damaged alternator drive belt. The alternator harness can also be damaged and cause low battery voltage to be present. Poor connections in the alternator circuit have also been shown to cause these codes to trigger. Also, poor battery maintenance or a lower quality battery can also lead to drainage issues which can bring about lower voltage levels. And, finally, a defective PCM should never be ruled out as a possible cause.

Even though the B2300 code directly affects the functionality of the power driver seat, it is technically still possible to operate your vehicle with the code set. However, it’s not recommended to drive with the code present for prolonged periods of time because you may be risking the electrical issue spreading to other critical components in your vehicle, like the navigation system, which can be a lot more costly to repair. This is why we recommend that you immediately take your vehicle to a qualified service center when presented with the B2300 code to prevent any further and costlier damage from happening.

If the cause of the B2300 or its related code is just a position sensor being defective, this is a very easy repair since it only requires replacing the old one with a new sensor. However, oftentimes the root issue can be a shorted circuit to the sensor, and this requires a lot more attention to detail by a technician with the right experience.

Even with B1317 and B1318 codes, you want to make sure that a qualified technician examines the electrical and charging. The technician should replace the harnesses that hold the battery and alternator if they’re damaged. If the battery needs replacing this is also an easy repair since it only requires replacing it with a new one. However, if the issue is with the alternator control module or the PCM itself, this isn’t only more difficult to repair but also pricier.

As for trying these repairs yourself, it isn’t recommended if the BCM, PCM, or alternator control modules or their harnesses are the root cause. Even if poor circuits are the cause, this isn’t something that you want to dwell on solving because you could very easily misdiagnose the issue and cause even bigger problems for yourself. This is best left to a technician that has dealt with these issues before and has the experience.