Nissan Altima HL32 Hybrid. Manual - part 669

P0AA6-526, P0AA6-611, P0AA6-612, P0AA6-613, P0AA6-614

HBC-425

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

OK

>> GO TO 7.

NG

>> Replace hybrid transaxle (See 

TM-36, "Removal and Installation"

).

7.

INSPECT HYBRID TRANSAXLE (MG1)

CAUTION:

Be sure to wear insulated gloves.

1. Check that the service plug grip is not installed.

2. Check the connectors connection.

3. Using a megohmmeter set to 500 V, measure the resistance

according to the value(s) in the table below.

NOTE:

• Be sure to set the megohmmeter to 500 V when perform-

ing this test. Using a setting higher than 500 V can result

in damage to the component being inspected.

OK or NG

OK

>> Replace inverter with converter assembly (See 

HBC-638, "Removal and Installation"

).

NG

>> Replace hybrid transaxle (See 

TM-36, "Removal and Installation"

).

8.

CHECK AIR CONDITIONING HARNESS 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"

).

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 air conditioning harness assembly from the elec-

tric compressor.

-

Green lock (1)

Dirt or foreign objects have not entered the connection, or there is no evidence 
of contamination.

Generator Cable

Ground

Resistance

Harness connector

Terminal

—

U

Ground

20 M

Ω or higher

V

W

Generator Cable

Shielded wire 

ground

Resistance

Harness connector

Terminal

—

U

Shielded wire 

ground

20 M

Ω or higher

V

W

JMCIA0137GB

ALCIA0109ZZ

HBC-426

< COMPONENT DIAGNOSIS >

P0AA6-526, P0AA6-611, P0AA6-612, P0AA6-613, P0AA6-614

3. Using a megohmmeter set to 500 V, measure the resistance

according to the value(s) in the table below.

OK or NG

OK

>> Go to air conditioning system. 

NG

>> Replace air conditioning harness assembly.

9.

CHECK FRAME WIRE

CAUTION:

Be sure to wear insulated gloves.

1. Check that the service plug grip is not installed.

2. Disconnect the frame wire from the HV relay assembly (See -

HBB-105, "Removal and Installation"

).

3. Using a megohmmeter set to 500 V, measure the resistance

according to the value(s) in the table below.

OK or NG

OK

>> GO TO10.

NG

>> Replace frame wire.

10.

CHECK HV BATTERY AREA

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"

).

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.

Air Conditioning Harness Assembly

Ground

Resistance

Harness connector

Terminal

F250

12 (–)

Ground

3 M

Ω or higher

11 (+)

Air Conditioning Harness Assembly

Ground

Resistance

Harness connector

Terminal

F250

12 (–)

Shielded wire 

ground

3 M

Ω or higher

11 (+)

JMCIA0200GB

Battery smart unit

Ground

Resistance

Harness connector

Terminal

E308

21 (+)

Ground

10 M

Ω or higher

E309

22 (

−)

Battery smart unit

Ground

Resistance

Harness connector

Terminal

E308

21 (+)

Shielded wire 

ground

10 M

Ω or higher

E309

22 (

−)

JMCIA0195GB

P0AA6-526, P0AA6-611, P0AA6-612, P0AA6-613, P0AA6-614

HBC-427

< COMPONENT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

HBC

N

O

P

2. Disconnect the r3 battery smart unit connector.

3. Using a megohmmeter set to 500 V, measure the resistance

according to the value(s) in the table below.

NOTE:

• Be sure to set the megohmmeter to 500 V when perform-

ing this test. Using a setting higher than 500 V can result

in damage to the component being inspected.

OK or NG

OK

>> Replace battery smart unit (See 

HBB-101, "Removal and Installation"

) 

NG

>> GO TO 11.

11.

CHECK HYBRID VEHICLE CONVERTER

CAUTION:

Be sure to wear insulated gloves.

1. Check that the service plug grip is not installed.

2. Disconnect the w1, v1 and v3 hybrid vehicle converter (DC/DC

converter) connectors from the HV relay assembly (See 

HBB-

103, "Removal and Installation"

). Using a megohmmeter set to

500 V, measure the resistance according to the value(s) in the

table below.

OK or NG

OK

>> GO TO 12.

NG

>> Replace hybrid vehicle converter (See 

HBB-103, "Removal and Installation"

).

12.

CHECK HV RELAY ASSEMBLY

CAUTION:

Be sure to wear insulated gloves and protective goggles.

1. Check that the service plug grip is not installed.

2. Check that the high-voltage connectors (v1, v3 and w1) of the hybrid vehicle converter (DC/DC converter)

are connected securely.

JMCIA0154GB

Service plug grip

Ground

Resistance

Component connector

Terminal

−

1

Ground

10 M

Ω or higher

2

JMCIA0201GB

Component

connector

Terminal

Ground

Resistance

w1

1 (High voltage 

precharge)

Ground

10 M

Ω or higher

v3

1 (High voltage +)

v1

1 (High voltage –)

JMCIA0156GB

HBC-428

< COMPONENT DIAGNOSIS >

P0AA6-526, P0AA6-611, P0AA6-612, P0AA6-613, P0AA6-614

3. Disconnect the high voltage connectors of the HV battery from

the HV relay assembly (See 

HBB-105, "Removal and Installa-

tion"

).

4. Using a megohmmeter set to 500 V, measure the resistance

according to the value(s) in the table below.

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

NOTE:

The voltage decreases to below 1 V after 10 seconds. If the voltage is 1 V or higher, recheck the voltage

after 10 seconds.

OK or NG

OK

>> Replace HV battery (See 

HBB-97, "Removal and Installation"

).

NG

>> Replace HV relay assembly (See 

HBB-105, "Removal and Installation"

).

13.

CHECK HIGH VOLTAGE DIRECT CURRENT AREA

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"

).

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. Remove the compressor fuse cover from the inverter with con-

verter assembly (See 

HBC-638, "Removal and Installation"

).

JMCIA0157GB

HV Relay Assembly

Ground

Resistance

Component

connector

Terminal

E308

1 (High voltage +)

Ground

10 M

Ω or higher

E309

1 (High voltage 

−)

t1

1 (High voltage 

−)

s1

1 (High voltage +)

HV Relay Assembly

Ground

Voltage

Component

connector

Terminal

E308

21 (High voltage +)

Ground

Below 1 V

E309

22 (High voltage 

−)

JMCIA0199GB

ALCIA0103ZZ