C7243 (C4751i)

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ByEric Ditges
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Trouble typeC7243: Exit path switch solenoid failure
RankC
Trouble detection conditionAfter starting the solenoid, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical partsExit path switch solenoid (SD1)Base board (BASEB)

Procedure

  1. Check the connector between SD1-relay CN12-BASEB CN17E for proper connection and correct as necessary.
  2. Check the connector of SD1 for proper drive coupling and correct as necessary.
  3. SD1 conduction check
    • Control signal: BASEB CN17E-11 (ON)
    • Location of electrical component: 1-C
  4. Replace SD1.
  5. Replace BASEB.

(Link to the Field Service Manual)