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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE) - Diagnostic Codes (7 Of 7) >> Hybrid Control System >> DTC P3110-223: HV Main Relay [02/2014 - 11/2016] >> Description

DTC P3110-223: HV Main Relay [02/2014 - 11/2016]: Description

The power management control ECU monitors the IGCT relay and detects the following malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P3110-223 HV Main Relay IGCT relay stuck on (+B short):
IGCT relay is stuck on or a short to B+ exists. Power to the power management control ECU does not shut down when the power switch is turned off.
(1 trip detection logic)
  • Wire harness or connector
  • IGCT relay
  • Power management control ECU
Does not come on Master Warning Light:
Comes on