Nissan Altima HL32 Hybrid. Manual - part 613

P0A2C-247, P0A2D-249

HBC-201

< COMPONENT DIAGNOSIS >

D

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G

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B

HBC

N

O

P

Check for short

OK or NG

OK

>> Replace hybrid vehicle control ECU (See 

HBC-644, "Removal and Installation"

).

NG

>> Repair or replace harness or connectors.

7.

READ VALUE OF DATA MONITOR (MG1 MOTOR TEMP)

1. Disconnect the motor temperature sensor harness connector F69.

2. Turn ignition switch ON.

3. Select “MG1 MOTOR TEMP” in DATA MONITOR mode with CONSULT-III.

4. Read the indication.

OK or NG

OK

>> Replace hybrid transaxle (See 

TM-36, "Removal and Installation"

).

NG

>> GO TO 8.

8.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - MOTOR TEMPERATURE

SENSOR)

1. Disconnect the hybrid vehicle control ECU harness connector E65.

2. Disconnect the motor temperature sensor connector F69.

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

Check for open

Check for short

OK or NG

Hybrid vehicle control ECU

Ground

Resistance

Harness

connector

Terminal

E65

16 (MMT)

Ground

10 k

Ω or higher

15 (MMTG)

Motor temperature sensor

Ground

Resistance

Harness

connector

Terminal

F69

7 (MMT)

Ground

10 k

Ω or higher

9 (MMTG)

Displayed temperature

: -50

°C (-58°F)

Hybrid vehicle control ECU

Motor temperature sensor

Resistance

Harness

connector

Terminal

Harness

connector

Terminal

E65

16 (MMT)

F69

7 (MMT)

Below 1

Ω

15 (MMTG)

9 (MMTG)

Hybrid vehicle control ECU

Ground

Resistance

Harness

connector

Terminal

E65

16 (MMT)

Ground

10 k

Ω or higher

15 (MMTG)

Motor temperature sensor

Ground

Resistance

Harness

connector

Terminal

F69

7 (MMT)

Ground

10 k

Ω or higher

9 (MMTG)

HBC-202

< COMPONENT DIAGNOSIS >

P0A2C-247, P0A2D-249

OK

>> Replace hybrid vehicle control ECU (See 

HBC-644, "Removal and Installation"

).

NG

>> Repair or replace harness or connector.

P0A37-258, P0A37-260

HBC-203

< COMPONENT DIAGNOSIS >

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P0A37-258, P0A37-260

Description

INFOID:0000000004211879

The resistance of the thermistor built into the motor temperature sensor changes in accordance with changes

in MG2 temperature. The lower the MG2 temperature, the more the thermistor resistance. Conversely, the

more the temperature, the lower the resistance.

DTC Logic

INFOID:0000000004211880

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000004211881

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.

CHECK CONNECTOR CONNECTION CONDITION (GENERATOR TEMPERATURE SENSOR CONNEC-

TOR)

Check the connection of the generator temperature sensor connector.

OK or NG

OK

>> GO TO 3.

>> Connect securely.

3.

REPLACE HYBRID TRANSAXLE

Refer to 

TM-36, "Removal and Installation"

.

JMCIA0097GB

DTC No.

INF Code

Trouble diagnosis name

DTC detecting condition

Possible cause

P0A37

258

Generator Temperature Sensor 
Circuit Range/Performance

Generator temperature sensor 
malfunction

Hybrid transaxle (Generator temper-
ature sensor)

260

Generator temperature sensor 
performance problem

• The connectors are connected securely and there are no contact problems.
• Dirt or foreign objects have not entered the connection, or there is no evidence 

of contamination. 

HBC-204

< COMPONENT DIAGNOSIS >

P0A37-258, P0A37-260

>> COMPLETED