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Home >> Lexus >> 2010 >> IS 250C Standard >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Retractable Hardtop (Diagnostic Codes (B2536-B256E) & Circuit Tests) >> Retractable Hardtop System >> DTC B2538: Abnormal Roof Drive Motor RH Pulse >> Description

DTC B2538: Abnormal Roof Drive Motor RH Pulse: Description

The sliding roof control ECU assembly controls the speed of the roof panels using pulse signals that are generated by the rotation of the sliding roof drive gear assembly RH (roof motor RH).

DTC No. Detection Condition Trouble Area
B2538 Pulse signals do not occur during sliding roof drive gear assembly RH (roof motor RH) operation or pulse signals show abnormal value.
  • Sliding roof drive gear assembly RH (roof motor RH)
  • Wire harness or connector
  • Sliding roof control ECU assembly
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