Nissan Altima HL32 Hybrid. Manual - part 608

P0A1B-788

HBC-181

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

NG

>> Replace hybrid transaxle (See 

TM-36, "Removal and Installation"

).

HBC-182

< COMPONENT DIAGNOSIS >

P0A1D-134, P0A1D-135, P0A1D-570

P0A1D-134, P0A1D-135, P0A1D-570

Description

INFOID:0000000004211831

The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.

DTC Logic

INFOID:0000000004211832

DTC DETECTION LOGIC

The hybrid vehicle control ECU performs diagnostic monitoring to verify proper operation of vehicle systems.

One of these monitors the rationality of internal analog (signal) to digital conversions. The hybrid vehicle con-

trol ECU monitors the internal A/D (Analog/Digital converter) value. If there is an A/D converter malfunction,

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

Diagnosis Procedure

INFOID:0000000004211833

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.

>> GO TO 2.

2.

REPLACE HYBRID VEHICLE CONTROL ECU

See 

HBC-644, "Removal and Installation"

.

>> COMPLETED

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

P0A1D

134

Hybrid Powertrain Control Module

ECU internal error

Hybrid vehicle control ECU

135

570

P0A1D-140

HBC-183

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

P0A1D-140

Description

INFOID:0000000004211834

The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.

DTC Logic

INFOID:0000000004211835

DTC DETECTION LOGIC

The hybrid vehicle control ECU performs many diagnostic tests to verify proper operation of internal ECU sys-

tems. One of these tests checks for errors after a memory read/write diagnostic test. If the hybrid vehicle con-

trol ECU detects this malfunction inside the ECU, it will illuminate the MIL and set a DTC.

Diagnosis Procedure

INFOID:0000000004211836

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.

>> GO TO 2.

2.

REPLACE HYBRID VEHICLE CONTROL ECU

See 

HBC-644, "Removal and Installation"

.

>> COMPLETED

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

P0A1D

140

Hybrid Powertrain Control Module

ECU internal error

Hybrid vehicle control ECU

HBC-184

< COMPONENT DIAGNOSIS >

P0A1D-141

P0A1D-141

Description

INFOID:0000000004211837

The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.

DTC Logic

INFOID:0000000004211838

DTC DETECTION LOGIC

The hybrid vehicle control ECU performs many diagnostic tests to verify proper operation of internal ECU sys-

tems. One of these tests checks for errors in the ROM (Read Only Memory) circuits of the hybrid vehicle con-

trol ECU. If the hybrid vehicle control ECU detects this malfunction inside the ECU, it will illuminate the MIL

and set a DTC.

Diagnosis Procedure

INFOID:0000000004211839

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.

>> GO TO 2.

2.

REPLACE HYBRID VEHICLE CONTROL ECU

See 

HBC-644, "Removal and Installation"

.

>> COMPLETED

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

P0A1D

141

Hybrid Powertrain Control Module ECU internal error

Hybrid vehicle control ECU