P3030

DTC P3030 Battery Voltage Detected Line Snapped

DESCRIPTION

DTC Detection Condition:

The HV battery uses nickel metal-hydride batteries and does not require external charging. The HV control ECU controls the SOC (state of charge) of the HV battery at a constant level during driving. The HV battery is composed of 30 modules, and each module consists of eight 1.2 V cells in series. The battery smart unit monitors battery block voltage at 15 locations. Each battery block is composed of 2 modules in a set.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

The battery smart unit monitors a voltage of the battery blocks to detect an open in internal battery voltage sensor circuits of the battery smart unit and the wire harness between each battery block and battery smart unit. If the voltage at any of the battery blocks is out of the specified range, the battery smart unit judges that there is an open in the internal sensor circuit(s) or wire harness. The HV control ECU then illuminates the MIL and sets a DTC.

Step 1-5:

Step 5(continued):

INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system, take safety precautions to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. After removing the service plug grip, put it in your pocket to prevent other technicians from reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 5 minutes before touching any of the high-voltage connectors or terminals.

HINT: At least 5 minutes is required to discharge the high-voltage capacitor inside the w/ converter inverter assembly.