Code Definition

B1531 — Memory 1 Switch Circuit Failure

System: Body  |  Type: Manufacturer-Specific  |  Make: Renault

About B1531

B1531 is a manufacturer-specific body diagnostic trouble code recorded for Renault vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1531 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1531 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The B1531 fault code indicates that the Body Control Module (BCM) or memory seat module has detected a circuit failure on the Memory 1 Switch input. The Memory 1 Switch is typically part of the driver memory seat or mirror system, allowing the driver to recall stored position settings with a single button press. The module monitors the switch input for a valid voltage range; when the signal stays grounded, shorts to voltage, or remains open beyond the calibrated time, this code is set. Symptoms can include the seat or mirror memory recall function not working for position 1, an illuminated war...

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