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DTC B2537 Roof Control Switch Malfunction: Description

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

The roof control switch is located on the A/C control.

This circuit indicates "open" or "close" depending on the position of the sliding roof.

The open switch opens the sliding roof and the close switch closes the sliding roof.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B2537 Either of following conditions is met:
  • Pressing roof control switch (open or close) for more than 2 minutes
  • Roof control switch (open and close) is turned ON simultaneously
  • A/C control (Roof control switch)
  • Wire harness
  • Sliding roof control ECU