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Home › Lexus › 1993 › LS 400 › Repair and Diagnosis (Single Page) › Accessories & Equipment › Cruise Control Systems › Testing › Stoplight Switch Circuit › Stoplight Switch Input Signal Check

Stoplight Switch Input Signal Check

  1. Perform INPUT SIGNAL CHECK under TROUBLE SHOOTING. Cruise control indicator light should generate a 6-pulse signal when brake pedal is depressed.
  2. If indicator light functions as indicated, go to next inspection item shown on matrix chart. See Figure. If indicator light does not function as indicated, go to VOLTAGE CHECK.
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