P0A1F-593

P112 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0A1F-593: Battery Energy Control Module

DTC P0A1F-593 - Battery Energy Control Module

DESCRIPTION

The battery ECU transmits information on the IG2 voltage of the battery ECU to the HV control ECU via CAN communication.






MONITOR DESCRIPTION

When the IG2 voltage of the battery ECU, which is transmitted while the power switch is ON (IG), is low, the HV control ECU determines that a wiring malfunction has occurred at the IG2 terminal of the battery ECU. When the HV control ECU detects the malfunction, it illuminates the MIL and sets a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (BATTERY ECU - IGN FUSE)




(a) Disconnect the B11 battery ECU connector.




(b) Remove the IGN fuse from the driver side junction block.
(c) Measure the resistance between the wire harness side connectors.
Standard resistance (Check for open):





Standard resistance (Check for short)





NOTE: When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder.
(d) Reinstall the IGN fuse.
(e) Reconnect the battery ECU connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE BATTERY ECU ASSEMBLY