Nissan Altima HL32 Hybrid. Manual - part 705

P3232-749

HBC-569

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

3. Disconnect the E69 inverter with converter assembly connector.

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

below.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness or connector.

3.

CHECK INVERTER WITH CONVERTER ASSEMBLY

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

below.

OK or NG

OK

>> Replace hybrid vehicle control ECU. (See 

HBC-644,

"Removal and Installation"

).

NG

>> Replace inverter with converter assembly. (See 

HBC-

638, "Removal and Installation"

).

Hybrid vehicle control ECU

Inverter with converter assembly

Resistance

Harness

connector

Terminal

Harness

connector

Terminal

E66

121 (HSDN)

E69

31 (HSDN)

10 k

Ω or higher

JMCIA0214GB

Inverter with converter assembly

Ground

Resistance

Component 

connector

Terminal

E69

31 (HSDN)

Ground

2.65 to 3.55 k

Ω

JMCIA0215GB

HBC-570

< COMPONENT DIAGNOSIS >

P3233-750

P3233-750

Description

INFOID:0000000004212166

The hybrid vehicle control ECU sends a shutdown signal to the inverter with converter assembly (MG ECU) to

shut down the power supply to the MG2.

DTC Logic

INFOID:0000000004212167

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000004212168

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 HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - INVERTER WITH CON-

VERTER ASSEMBLY)

CAUTION:

Be sure to wear insulated gloves.

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

HBC-633, "Precautions for the Hybrid

Control System Activation"

).

NOTE:

After removing the service plug grip, do not turn ignition switch ON (READY), unless instructed by the ser-

vice manual because this may cause a malfunction.

2. Disconnect the E66 hybrid vehicle control ECU connector.

3. Disconnect the E69 inverter with converter assembly connector.

4. Turn ignition switch ON.

JMCIA0213GB

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

P3233

750

Short to B+ in blocking of HV 
gate connection

Open or short to +B in the emer-
gency shutdown signal line when 
the gate is driving

• Wire harness or connector
• Hybrid vehicle control ECU
• Inverter with converter assembly

P3233-750

HBC-571

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

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

NOTE:

Turn ignition switch ON with the hybrid vehicle control ECU con-

nector 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.

NOTE:

To check for a short to VB, ignition switch ON. However, the bat-

tery voltage is not applied to terminals VB and VB2 because the IGCT relay is not turned on with the E66

connector disconnected from the hybrid vehicle control ECU. Therefore, measure the resistance between

terminals HSDN and VB and also between terminals HSDN and VB2.

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

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness or connector.

3.

CHECK INVERTER WITH CONVERTER ASSEMBLY

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

below.

OK or NG

OK

>> Replace hybrid vehicle control ECU. (See 

HBC-644, "Removal and Installation"

)

NG

>> Replace inverter with converter assembly. (See 

HBC-638, "Removal and Installation"

).

Inverter with converter assembly

Ground

Voltage

Harness connector

Terminal

E69

31 (HSDN)

Ground

Below 1V

Hybrid vehicle control ECU

Hybrid vehicle control ECU

Resistance

Harness 

connector

Terminal

Harness 

connector

Terminal

E66

121 (HSDN)

E66

174 (VB)

10 k

Ω or higher

168 (VB2)

165 (BATT)

Hybrid vehicle control ECU

Inverter with converter assembly

Resistance

Harness

connector

Terminal

Harness

connector

Terminal

E66

121 (HSDN)

E69

31 (HSDN)

Below 1

Ω

JMCIA0216GB

Inverter with converter as-

sembly

Inverter with converter 

assembly

Resistance

Component

connector

Terminal

Compo-

nent

connector

Terminal

E69

31 (HSDN)

E69

1 (+B)

10 k

Ω or higher

2 (+B2)

Inverter with converter assembly

Ground

Resistance

Component connector

Terminal

E69

31 (HSDN)

Ground

2.65 to 3.55 k

Ω

JMCIA0217GB

HBC-572

< COMPONENT DIAGNOSIS >

U0100-211, U0100-212, U0100-530

U0100-211, U0100-212, U0100-530

Description

INFOID:0000000004212169

The hybrid vehicle control ECU transmits and receives signals to and from the ECM, the brake ECU, the EPS

control unit and network gateway ECU via CAN communication.

DTC Logic

INFOID:0000000004212170

DTC DETECTION LOGIC

If the hybrid vehicle control ECU detects a problem with CAN communication between the ECU and ECM, the

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

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC confirmation procedure has been previously conducted, always turn ignition switch OFF and wait at

least 10 seconds before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 3 seconds.

2. Check DTC.
Is DTC detected?

YES

>> Go to 

HBC-572, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004212171

Go to 

LAN-53, "Trouble Diagnosis Flow Chart"

.

DTC No.

INF code

Trouble diagnosis name

DTC detecting condition

Possible cause

U0100

211

Lost communication with ECM/
PCM “A”

Problem with CAN communication be-
tween the ECM and hybrid vehicle con-
trol ECU (communication error between 
ECUs)

CAN communication system

U0100

212

Problem with CAN communication be-
tween the ECM and hybrid vehicle con-
trol ECU (signal transmission error)

U0100

530

Problem with CAN communication be-
tween the ECM and hybrid vehicle con-
trol ECU (CAN communication system 
malfunction)