OBDII Code List

C2303 LEXUS - Short In Power Source Relay 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

Possible symptoms

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

C2303 Lexus Description

The integration relay is activated by output voltage from the Transmission Control ECU and supplies power to the shift control actuator (parking lock motor). The Transmission Control ECU outputs this Diagnostic Trouble Code (DTC) when it detects a malfunction in the integration relay.
OBDII Code C2303 Lexus - Short In Power Source Relay Circuit -

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C2303 LEXUS Comments

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