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B1538 is a diagnostic trouble code (DTC) for "Memory 2 Switch Circuit Short To Ground". 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 power drivers’ seat slides back and forth on a track and is powered by three motors: one for fore-and-aft, and two for vertical movement, tilting the front or rear of the seat. A separate motor controls the seat’s reclining range of motion. The motors receive voltage from the driver’s seat module, which reverses polarity to determine the seat’s movement. Each motor features a Hall-effect position sensor, which sends a signal pulse back to the DSM to store the position of the power seat and backrest.
The DSM will self-test if it detects an error in the circuit. If the error is sensed for two minutes or more, the DTC is set as continuous, and any input signal on the circuit will be ignored.
Symptoms can include:
This is a code that requires careful and methodical process of elimination and diagnosis for a proper repair. Be careful not to skip over steps and jump to a hasty conclusion that could lead to replacing parts unnecessarily.
A B1538 code can result in power seats, mirrors, tilt wheel and adjustable pedals that are stuck in place and cannot be adjusted.
Be certain to use the right DVOM probes while troubleshooting a B1538 code, to avoid damage or failure of parts.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.