DTC    P3110-223    IGCT Relay Malfunction

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DESCRIPTION

The HV control ECU monitors the IGCT relay and detects a malfunction.

DTC No.
INF Code
DTC Detection Condition
Trouble Area
P3110
223
IGCT relay remains stuck closed.
  1. Wire harness or connector
  2. IGCT relay

WIRING DIAGRAM


A113958E02


INSPECTION PROCEDURE

HINT:
If the battery voltage is applied to terminal +B1, +B2, or MREL of the HV control ECU, even though the ignition switch is off, the circuit is shorted to +B.

1.INSPECT IGCT RELAY


    A032779

  1. Remove the IGCT relay from the engine room R/B.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Specified Condition
    3 - 5
    		10 kΩ or higher
    3 - 5
    		Below 1 Ω
    (Apply auxiliary battery voltage between terminals lands)



NG
REPLACE IGCT RELAY
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR