Diesel Data: Automotive Repair

Hybrid Battery Control System

DTC P0560 SYSTEM VOLTAGE

CIRCUIT DESCRIPTION


DTC Detection Condition:




The battery power is constantly supplied to the AM terminal of the battery ECU for the purpose of maintaining the DTCs and freeze frame data in memory. This voltage is supplied as a backup even if the power switch is turned OFF.

MONITOR DESCRIPTION

Monitor Strategy:




Typical Enabling Conditions:




Typical Malfunction Thresholds:




Component Operating Range:




If 1 or more seconds have elapsed with a voltage of 1 V or less at the AM terminal at the battery ECU, the battery ECU will determine that malfunction has occurred in the back-up power supply system, illuminate the MIL, and set a DTC.

Wiring Diagram:






Step 1:




Step 2:




Step 3:




INSPECTION PROCEDURE