Nissan Altima HL32 Hybrid. Manual - part 546
P0A80-123
HBB-41
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P0A80-123
Description
INFOID:0000000004212255
The hybrid vehicle control ECU controls the SOC (state of charge) of the HV battery at a constant level while
driving. The HV battery is composed of 34 modules, and each module consists of six 1.2 V cells in series. The
battery smart unit monitors battery block voltage at 17 locations. Each battery block is composed of 2 modules
in a set.
DTC Logic
INFOID:0000000004212256
DTC DETECTION LOGIC
The battery smart unit, which monitors the voltage of the battery blocks, determines that a malfunction has
occurred if a voltage difference between the battery blocks exceeds the standard. When the DTC detection
condition is satisfied, the hybrid vehicle control ECU will illuminate the MIL and set a DTC.
NOTE:
P0A80-123 cannot be set unless the vehicle is driven for approximately 10 minutes after clearing the DTCs.
(Turn ignition switch OFF and perform a road test again after the first road test because this DTC is a 2 trip
detection DTC.)
Diagnosis Procedure
INFOID:0000000004212257
1.
CHECK FOR DTCS (DTC P0A1F-123 IS OUTPUT)
1. Turn ignition switch ON.
2. Check DTC.
Is DTC P0A1F-123 detected?
YES
>> Go to Diagnosis Procedure relevant to output DTC.
NO
>> GO TO 2.
2.
READ VALUE ON CONSULT-III
1. Ensure the safety of the areas in front and at the back of the vehicle.
2. Turn ignition switch ON (READY).
3. Select “V1 BATT BLOCK” to “V17 BATT BLOCK” in “DATA MONITOR” mode with CONSULT-III.
4. Fully warm up the engine and turn the air conditioning off.
5. Firmly depress the brake pedal with your left foot.
6. Move the shift lever to the D position.
7. Record each monitor item (V1 to V17 BATT BLOCK) while fully depressing the accelerator pedal.
8. Compare the battery block voltages (V1 to V17 BATT BLOCK) between the even and odd number groups
in each combination shown in the table below.
JMCIA0086GB
DTC No.
INF code
Trouble diagnosis name
DTC detecting condition
Possible cause
P0A80
123
Replace hybrid battery pack
Difference in voltage between battery blocks
is larger than the standard (2 trip detection)
• HV battery
• Battery smart unit