Nissan Altima HL32 Hybrid. Manual - part 672

P0ADB-227, P0ADC-226

HBC-437

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

JMCIA0124GB

HBC-438

< COMPONENT DIAGNOSIS >

P0ADB-227, P0ADC-226

DTC Logic

INFOID:0000000004212060

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000004212061

1.

PRECONDITIONING

• Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with

converter assembly, 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-voltage 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.

JMCIA0125GB

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

P0ADB

227

Hybrid Battery Positive Contac-
tor Control Circuit Low

Short to GND in the SMRB circuit

• Wire harness or connector
• HV relay assembly
• Hybrid vehicle control ECU

P0ADC

226

Hybrid Battery Positive Contac-
tor Control Circuit High

Open or short to +B in the SMRB 
circuit

• Wire harness or connector
• HV relay assembly
• Hybrid vehicle control ECU

P0ADB-227, P0ADC-226

HBC-439

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

>> GO TO 2.

2.

CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)

See 

HBC-109, "Diagnosis Procedure"

.

OK

>> GO TO 3.

NG

>> Connect securely.

3.

CHECK CONNECTOR CONNECTION CONDITION (BATTERY PACK WIRE CONNECTOR)

See 

HBC-140, "Diagnosis Procedure"

.

OK

>> GO TO 4.

NG

>> Connect securely.

4.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - BATTERY PACK WIRE

CONNECTOR)

1. Turn ignition switch OFF.

2. Disconnect the E66 hybrid vehicle control ECU connector.

3. Disconnect the B130 battery pack wire connector.

4. Turn ignition switch ON.

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

NOTE:

Turn ignition switch ON with the hybrid vehicle control ECU connector disconnected causes other DTCs to

be stored. Clear the DTCs after performing this inspection.

6. Turn ignition switch OFF.

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

Check for open

Check for short

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness or connector.

5.

CHECK CONNECTOR CONNECTION CONDITION (HV RELAY CONNECTOR)

See 

HBC-450, "Diagnosis Procedure"

.

OK

>> GO TO 6.

Hybrid Vehicle Control ECU

Ground

Voltage

Harness

connector

Terminal

E66

169 (SMRB)

Ground

Below 1 V

Hybrid Vehicle Control ECU

Battery Pack wire

Resistance

Harness

connector

Terminal

Harness

connector

Terminal

E66

169 (SMRB)

B130

3 (CON2)

Below 1 

Ω

Hybrid Vehicle Control ECU

Ground

Resistance

Harness connector

Terminal

E66

169 (SMRB)

Ground

10 k

Ω or higher

Battery Pack wire

Ground

Resistance

Harness connector

Terminal

B130

3 (CON2)

Ground

10 k

Ω or higher

HBC-440

< COMPONENT DIAGNOSIS >

P0ADB-227, P0ADC-226

NG

>> Connect securely.

6.

CHECK HARNESS AND CONNECTOR (BATTERY PACK WIRE CONNECTOR - HV RELAY ASSEMBLY)

CAUTION:

Be sure to wear insulated gloves.

1. Turn ignition switch OFF and remove the service plug grip (See 

HBC-632, "Precautions for Inspecting the

Hybrid Control System"

).

2. Disconnect the n3 HV relay assembly connector (See 

HBB-105,

"Removal and Installation"

).

3. Turn ignition switch ON.

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

NOTE:

Turn ignition switch ON with the battery pack wire connec-

tor disconnected causes other DTCs to be stored. Clear the

DTCs after performing this inspection.

5. Turn ignition switch OFF.

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

below

Check for open

Check for short

Battery Pack Wire Connector

Ground

Voltage

Harness connector

Terminal

B130

3 (CON2)

Ground

Below 1 V

JMCIA0158GB

JMCIA0192GB

Battery Pack Wire Connector

HV Relay Assembly

Resistance

Harness

connector

Terminal

Harness

connector

Terminal

B130

3 (CON2)

n3

3 (CON2)

Below 1 

Ω

Battery Pack Wire Connector

Ground

Resistance

Harness connector

Terminal

B130

3 (CON2)

Ground

10 k

Ω or higher