DTC No. P0A7D-00 SOC Low Over diagnosis

MONITOR EXECUTION

Continuous

MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)

Other Monitor (There is no temporary DTC set in memory for the item monitored below)

BMU monitor
Drive battery voltage sensor circuit monitor

Sensor (The sensor below is determined to be normal)

Drive battery current sensor

DTC SET CONDITIONS

Logic Flow Chart

Check Condition

The BMU power supply voltage is more than 7.578 volts.

Judgment Criterion

The SOC is 5% or less.

OBD-II DRIVE CYCLE PATTERN

Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.

TROUBLESHOOTING HINTS

Malfunction of the BMU
Error of the drive battery learning procedure

note	The DTC No. P0A7D-00 may be set due to the following factor. Over discharge or the drive battery since the vehicle is not used for a long time.

DIAGNOSIS

Required Special Tools:

MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
MB992745: V.C.I.-Lite main harness A
MB992747: V.C.I.-Lite USB cable short
MB992748: V.C.I.-Lite USB cable long

1.M.U.T.-IIISE data list

(1) Check the following BMU data list.

Item No. 35: SOC CAN Output

OK: 0 to 100%

Is the check result normal?

The trouble can be an intermittent malfunction (Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS

2.Battery module check

Disassemble the drive battery (Refer to SERVICE PROCEDURE).
Check the battery module (Refer to BATTERY MODULE CHECK).

Is the check result normal?

Replace the BMU (Refer to SERVICE PROCEDURE

). Then,

Replace the drive battery (Refer to DRIVE BATTERY REMOVAL AND INSTALLATION

). Then,

3.Test the OBD-II drive cycle.

(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE

(2) Check the DTC.

Is the DTC set?

Retry the troubleshooting.

The procedure is complete.