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C2309 LEXUS

C2309 LEXUS - Open In B+ Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Transmission Control ECU Assembly
  • Transmission Control ECU harness is open or shorted
  • Transmission Control ECU circuit poor electrical connection
  • Faulty Auxiliary Battery

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C2309 Lexus Description

Battery voltage will be applied to the +B terminal when the power switch is turned on (IG). When a +B terminal voltage malfunction is detected, the Transmission Control ECU outputs this Diagnostic Trouble Code (DTC).
OBDII Code C2309 Lexus - Open In B+ Circuit - AutoCodes.com

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C2309 LEXUS Comments

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