Code Definition

B1533 — Memory 1 Switch Circuit Short To Battery

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

About B1533

B1533 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 B1533 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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.

B1533 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 B1533 fault code indicates that the Body Control Module (BCM) or memory seat module has detected a short to battery voltage on the Memory 1 Switch input. The Memory 1 Switch is a momentary push button on the driver's door panel that triggers recall of stored seat and mirror positions. The module supplies a low reference voltage (often 5V) to the switch input and expects the line to be pulled to ground when the switch is pressed; instead, the input is being driven up to battery voltage, indicating the signal wire has contacted a powered circuit. Symptoms include the memory recall function b...

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