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Brakelight Check (Response Code 1-3-2)

  1. Ensure brakelights illuminate when pedal is depressed. If not, check bulb, fuse and wiring as necessary.
  2. Using an ohmmeter, check continuity between control unit terminal No. 7 and ground. See Figure . Ohmmeter should indicate approximately zero ohms since terminal No. 7 and brakelight bulbs are connected to ground through brakelight bulbs.
  3. If ohmmeter does not indicate approximately zero ohms, check wiring and connectors for an open or short circuit. If ohms are to specification, adjust brakelight switch so brakelights illuminate when pedal is depressed .31-.51" (8-14 mm). If brakelight switch is okay, repeat SYSTEM COMPONENT CHECK. If no response code is generated during SYSTEM COMPONENT CHECK, go to CONTROL UNIT CHECK.
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