P3110

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P3110-223: HV Main Relay
P3110-223 - HV Main Relay

DESCRIPTION

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





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
If the auxiliary battery voltage is applied to terminal +B1 or +B2 of the power management control ECU, even though the power switch is off, the circuit is shorted to +B.

PROCEDURE

1. INSPECT RELAY (IGCT)

(a) Remove the IGCT relay from the No. 2 engine room relay block.

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





Standard Resistance:





Text in Illustration





(c) Install the IGCT relay.

NG -- REPLACE RELAY (IGCT)
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO.2 ENGINE ROOM RELAY BLOCK)

(a) Remove the IGCT relay from the No. 2 engine room relay block.

(b) Disconnect connector A38 and A39 from the power management control ECU.

(c) Measure the voltage according to the value(s) in the table below.





Text in Illustration





Standard Voltage:





(d) Install the IGCT relay.

(e) Connect the power management control ECU connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components