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Nissan Altima HL32 Hybrid. Manual - part 555

P3017-123, P3018-123, P3019-123, P3120-123, P3021-123, P3022-123

HBB-77

< COMPONENT DIAGNOSIS >

HBB

Diagnosis Procedure

INFOID:0000000004212293

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.

>> GO TO 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 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 battery block voltage 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.

9. Check the voltage difference in the all 9 combinations.

YES or NO

YES

>> Replace battery smart unit. (Refer to

HBB-101, "Removal and Installation"

>> Replace HV battery. (Refer to

HBB-97, "Removal and Installation"

Even number group

Odd number group

Battery block voltages to be compared

V1 BATT BLOCK

V2 BATT BLOCK

VB1

←→ VB2

V3 BATT BLOCK

V4 BATT BLOCK

VB3

←→ VB4

V5 BATT BLOCK

V6 BATT BLOCK

VB5

←→ VB6

V7 BATT BLOCK

V8 BATT BLOCK

VB7

←→ VB8

V9 BATT BLOCK

V10 BATT BLOCK

VB9

←→ VB10

V11 BATT BLOCK

V12 BATT BLOCK

VB11

←→ VB12

V13 BATT BLOCK

V14 BATT BLOCK

VB13

←→ VB14

V15 BATT BLOCK

V16 BATT BLOCK

VB15

←→ VB16

V17 BATT BLOCK

V16 BATT BLOCK

VB17

←→ VB16

The difference in voltage of all combinations is 0.3 V or more.

HBB-78

< COMPONENT DIAGNOSIS >

P3023-123, P3024-123, P3025-123, P3026-123, P3027-123

P3023-123, P3024-123, P3025-123, P3026-123, P3027-123

Description

INFOID:0000000004212294

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:0000000004212295

DTC DETECTION LOGIC

If there is an abnormal internal resistance or electromotive voltage in the battery blocks, the battery smart unit

determines that a malfunction has occurred. When the malfunction detection condition is satisfied, the hybrid

vehicle control ECU will illuminate the MIL and set a DTC.

NOTE:

DTCs from P3011-123 to P3027-123 cannot be set unless the vehicle is driven for approximately 10 minutes

after clearing the DTCs.

JMCIA0086GB

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

P3011

123

Battery block 1 becomes weak

Presence of a malfunctioning block is
determined based on each battery
block voltage (1 trip detection).

• HV battery
• Battery smart unit

P3012

123

Battery block 2 becomes weak

P3013

123

Battery block 3 becomes weak

P3014

123

Battery block 4 becomes weak

P3015

123

Battery block 5 becomes weak

P3016

123

Battery block 6 becomes weak

P3017

123

Battery block 7 becomes weak

P3018

123

Battery block 8 becomes weak

P3019

123

Battery block 9 becomes weak

P3020

123

Battery block 10 becomes weak

P3021

123

Battery block 11 becomes weak

P3022

123

Battery block 12 becomes weak

P3023

123

Battery block 13 becomes weak

P3024

123

Battery block 14 becomes weak

P3025

123

Battery block 15 becomes weak

P3026

123

Battery block 16 becomes weak

P3027

123

Battery block 17 becomes weak

P3023-123, P3024-123, P3025-123, P3026-123, P3027-123

HBB-79

< COMPONENT DIAGNOSIS >

HBB

Diagnosis Procedure

INFOID:0000000004212296

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.

>> GO TO 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 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 battery block voltage 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.

9. Check the voltage difference in the all 9 combinations.

YES or NO

YES

>> Replace battery smart unit. (Refer to

HBB-101, "Removal and Installation"

>> Replace HV battery. (Refer to

HBB-97, "Removal and Installation"

Even number group

Odd number group

Battery block voltages to be compared

V1 BATT BLOCK

V2 BATT BLOCK

VB1

←→ VB2

V3 BATT BLOCK

V4 BATT BLOCK

VB3

←→ VB4

V5 BATT BLOCK

V6 BATT BLOCK

VB5

←→ VB6

V7 BATT BLOCK

V8 BATT BLOCK

VB7

←→ VB8

V9 BATT BLOCK

V10 BATT BLOCK

VB9

←→ VB10

V11 BATT BLOCK

V12 BATT BLOCK

VB11

←→ VB12

V13 BATT BLOCK

V14 BATT BLOCK

VB13

←→ VB14

V15 BATT BLOCK

V16 BATT BLOCK

VB15

←→ VB16

V17 BATT BLOCK

V16 BATT BLOCK

VB17

←→ VB16

The difference in voltage of all combinations is 0.3 V or more.

HBB-80

< COMPONENT DIAGNOSIS >

U029A-123

U029A-123

Description

INFOID:0000000004212297

The battery smart unit detects the HV battery conditions (voltage, current, and temperature) and the battery

cooling fan voltages, and sends the detected information to the hybrid vehicle control ECU via serial communi-

cation.

DTC Logic

INFOID:0000000004212298

DTC DETECTION LOGIC

If the battery smart unit detects malfunction in serial communication with hybrid vehicle control ECU, it illumi-

nates the MIL and set a DTC.

Diagnosis Procedure

INFOID:0000000004212299

PRECONDITIONING

• Before inspecting the high-voltage system, take safety precautions such as wearing insulated gloves and

removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your

pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-volt-

age system.

• After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage

connectors or terminals.

• Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with

converter assembly.

>> GO TO 2.

CHECK HARNESS AND CONNECTOR (VOLTAGE)

CAUTION:

Be sure to wear insulated gloves.

1. Remove the service plug grip (Refer to

GI-24, "Precautions For High-Voltage System"

2. Remove the battery smart unit (Refer to

HBB-101, "Removal and Installation"

3. Disconnect the battery smart unit harness connector B130.

4. Turn ignition switch ON.

5. Measure the voltage according to the value(s) in the table below.

OK or NG

>> GO TO 3.

>> GO TO 5.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - BATTERY SMART UNIT)

CAUTION:

Be sure to wear insulated gloves.

1. Turn ignition switch OFF.

2. Disconnect the hybrid vehicle control ECU harness connector B66.

3. Measure the resistance according to the value(s) in the table below.

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

U029A

123

Battery observation communication
circuit malfunction

Problem with serial communication
between the battery smart unit and
hybrid vehicle control ECU (1 trip)

• Wire harness or connector
• Hybrid vehicle control ECU
• Battery smart unit

Battery smart unit

Voltage

Connector

Terminal

Connector

Terminal

B130

1 (IGCT [LH6])

B130

9 to 14V

JMCIA0249ZZ

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