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Home >> Lexus >> 2010 >> HS 250h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control (Diagnostic Codes (P0AA6-526 - U0424-537) & Circuit Tests) >> Hybrid Control System >> DTC P3110-139: IGCT Relay Malfunction; DTC P3110-223: IGCT Relay Malfunction >> Description

DTC P3110-139: IGCT Relay Malfunction; DTC P3110-223: IGCT Relay Malfunction: Description

The hybrid vehicle control ECU monitors the IGCT relay and detects malfunctions.

DTC No. INF Code DTC Detection Condition Trouble Area
P3110 139 There is a short to +B in the IGCT relay or the IGCT relay is stuck closed.
  • IGCT relay
  • Wire harness or connector
  • Hybrid vehicle control ECU
P3110 223 The IGCT relay remains stuck closed.
  • IGCT relay
  • Wire harness or connector
  • Hybrid vehicle control ECU