Nissan Altima HL32 Hybrid. Manual - part 997

B2604 PNP SWITCH

SEC-61

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

3. Check continuity between hybrid vehicle control ECU harness

connector and BCM harness connector.

4. Check continuity between hybrid vehicle control ECU harness

connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> Inspection End.

Hybrid vehicle control ECU

BCM

Continuity

Connector

Terminal

Connector

Terminal

A: E65

37

B: M18

48

Yes

Hybrid vehicle control ECU

Ground

Continuity

Connector

Terminal

A: E65

37

Ground

No

ALKIA0449ZZ

SEC-62

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2607 STEERING LOCK RELAY

B2607 STEERING LOCK RELAY

Description

INFOID:0000000004216029

BCM requests to IPDM E/R to supply power to steering lock unit. IPDM E/R sends status of steering lock unit

back to BCM.

DTC Logic

INFOID:0000000004216030

DTC DETECTION LOGIC

NOTE:

• If DTC B2607 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-28, "DTC Logic"

.

• If DTC B2607 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-29, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Press the push-button ignition switch under the following conditions.

-

ECVT selector lever is in the P position

-

Do not depress brake pedal

2. Steering lock is locked.

3. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-62, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004216031

1.

CHECK DTC WITH IPDM E/R

Check “Self diagnostic result” with CONSULT-III. Refer to 

PCS-36, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace malfunctioning component.

2.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect steering lock unit harness connector.

3. Check voltage between steering lock unit and ground under the

following conditions.

Is the inspection result normal?

YES

>> GO TO 4

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2607

STEERING LOCK 
RELAY

BCM detects that there is a difference between the 
following statuses.
• BCM request for steering lock unit power supply 

(ON/OFF)

• IPDM E/R status of steering lock unit power sup-

ply (ON/OFF)

• Harness or connectors (steering 

lock unit power supply circuit is 
open or shorted)

• Steering lock relay (in IPDM E/R)

Steering lock unit

Ground

Condition

Voltage (V)

Connector

Terminal

M32

1

Ground

Press push-button ignition 
switch when steering lock 
is in lock condition.

Battery voltage

ALKIA0450ZZ

B2607 STEERING LOCK RELAY

SEC-63

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

NO

>> GO TO 3

3.

CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check continuity between steering lock unit connector M32 (A)

terminal 1 and IPDM E/R harness connector E18 (B) terminal

11.

4. Check continuity between steering lock unit connector M32 (A)

terminal 1 and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-39, "Removal and Installation"

.

NO

>> Repair harness or connector.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> Inspection End.

Steering lock unit

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

A: M32

1

B: E18

11

Yes

Steering lock unit

Ground

Continuity

Connector

Terminal

A: M32

1

Ground

No

ALKIA0451ZZ

SEC-64

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2609 STEERING STATUS

B2609 STEERING STATUS

Description

INFOID:0000000004216035

There are 2 switches in the steering lock unit (steering lock/unlock switch 1 and 2). BCM compares those two

switches conditions to judge the present steering status.

DTC Logic

INFOID:0000000004216036

DTC DETECTION LOGIC

NOTE:

• If DTC B2609 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-28, "DTC Logic"

.

• If DTC B2609 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-29, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 1

1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

ECVT selector lever is in the P position.

-

Do not depress brake pedal

-

Steering is locked

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-64, "Diagnosis Procedure"

.

NO

>> GO TO 2

2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1. Turn ignition switch ON.

2. Turn ignition switch OFF.

3. Press door switch.

4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-64, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004216037

1.

INSPECTION START

Check the case in which DTC is detected.

• Case1: It is detected after ignition switch is changed from ON to OFF and door switch is pressed

• Case2: It is detected after ignition switch is changed from ON to OFF
In which case is DTC detected?

Case1 >> GO TO 2

Case2 >> GO TO 7

2.

CHECK BCM OUTPUT SIGNAL

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2609

STEERING STATUS

BCM detects the malfunction of steering lock unit 
switches for 1 second.

• Harness or connectors

[steering lock unit circuit (BCM 
side) is open or shorted]

• Harness or connectors

[steering lock unit circuit (IPDM E/
R side) is open or shorted.]

• Steering lock unit 
• IPDM E/R