Nissan Altima L32. Manual - part 1273

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B2109 STEERING LOCK RELAY

B2109 STEERING LOCK RELAY

Description

INFOID:0000000004206288

The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication.

IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM.

DTC Logic

INFOID:0000000004206289

DTC DETECTION LOGIC

NOTE:

• If DTC B2109 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-235, "DTC Logic"

.

• If DTC B2109 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-236, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

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

-

CVT selector lever is in the P or N position

-

Do not depress the brake pedal

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

YES

>> Refer to 

SEC-242, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206290

1.

CHECK POWER SUPPLY CIRCUIT

Check IPDM E/R power supply circuit. Refer to 

PCS-23, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair the malfunctioning parts

2.

CHECK FUSE

1. Turn ignition switch OFF.

2. Check 10A fuse (No. 40, located in IPDM E/R).
Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-48, "Removal and Installation"

.

NO

>> Check the following.

• Harness for open or short between IPDM E/R and battery

• Fuse

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2109

STRG LCK RELAY 
OFF

IPDM E/R detects that the relay is stuck at OFF po-
sition for about 1 second even if the IPDM E/R re-
ceives steering lock relay ON/OFF signal from 
BCM.

• Harness or connector (power sup-

ply circuit)

• IPDM E/R
• Battery

B210A STEERING LOCK CONDITION SWITCH

SEC-243

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B210A STEERING LOCK CONDITION SWITCH

Description

INFOID:0000000004206291

There are 2 switches in the electronic steering column lock. IPDM E/R compares those 2 switches conditions

to judge the present steering status and transmit the result to BCM via CAN communication.

DTC Logic

INFOID:0000000004206292

DTC DETECTION LOGIC

NOTE:

• If DTC B210A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-235, "DTC Logic"

.

• If DTC B210A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-236, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

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

-

CVT selector lever is in the P or N position

-

Do not depress the brake pedal

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

YES

>> Refer to 

SEC-243, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206293

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

1. Turn ignition switch OFF.

2. Disconnect electronic steering column lock harness connector and IPDM E/R harness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B210A

STRG LCK STATE 
SW

BCM detects the mismatch between the following 
for 1 second
• Steering lock or unlock
• Feedback of steering lock status from IPDM E/R 

(CAN)

• Harness or connectors

[electronic steering column lock 
circuit (BCM side) is open or short-
ed]

• Harness or connectors

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

• Electronic steering column lock 
• IPDM  E/R

SEC-244

< COMPONENT DIAGNOSIS >

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B210A STEERING LOCK CONDITION SWITCH

3. Check voltage between electronic steering column lock harness

connector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> GO TO 3

3.

CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-I

1. Disconnect BCM harness connector.

2. Check continuity between BCM harness connector M19 (A) ter-

minal 85 and electronic steering column lock harness connector

M32 (B) terminal 3.

3. Check continuity between BCM harness connector M19 (A) ter-

minal 85 and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair harness or connector.

4.

CHECK IPDM E/R OUTPUT SIGNAL

1. Connect IPDM E/R harness connector.

2. Disconnect BCM harness connector.

3. Check voltage between electronic steering column lock harness

connector and ground.

Is the inspection result normal?

YES

>> Replace electronic steering column lock.

NO

>> GO TO 5

5.

CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-II

Electronic steering column lock

Ground

Voltage [V]

Connector

Terminal

M32

3

Ground

Battery voltage

ALKIA0454ZZ

BCM

Electronic steering column lock

Continuity

Connector

Terminal

Connector

Terminal

A:  M19

85

B:  M32

3

Yes

BCM

Ground

Continuity

Connector

Terminal

A: M19

85

Ground

No

ALKIA0455ZZ

Electronic steering column lock

Ground

Voltage [V]

Connector

Terminal

M32

3

Ground

Battery voltage

ALKIA0454ZZ

B210A STEERING LOCK CONDITION SWITCH

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1. Check continuity between electronic steering column lock har-

ness connector M32 (A) terminal 3 and IPDM E/R harness con-

nector E18 (B) terminal 32.

2. Check continuity between electronic steering column lock har-

ness connector M32 (A) terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair harness or connector.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> Inspection End.

7.

CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect electronic steering column lock harness connector and IPDM E/R harness connector E5.

3. Check voltage between electronic steering column lock harness

connector and ground.

Is the inspection result normal?

YES

>> GO TO 9

NO

>> GO TO 8

8.

CHECK ELECTRONIC STEERING COLUMN LOCK CIRCUIT-I

1. Disconnect BCM harness connector M122.

2. Check continuity between BCM harness connector M19 (A) ter-

minal 86 and electronic steering column lock harness connector

M32 (B) terminal 8.

3. Check continuity between BCM harness connector M19 (A) ter-

minal 86 and ground.

Is the inspection result normal?

Electronic steering column lock

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

A: M32

3

B: E18

32

Yes

Electronic steering column lock

Ground

Continuity

Connector

Terminal

A: M32

3

Ground

No

ALKIA0456ZZ

Electronic steering column lock

Ground

Voltage [V]

Connector

Terminal

M32

8

Ground

Battery voltage

ALKIA0457ZZ

BCM

electronic steering column lock

Continuity

Connector

Terminal

Connector

Terminal

A:  M19

86

B:  M32

8

Yes

BCM

Ground

Continuity

Connector

Terminal

A: M19

86

Ground

No

ALKIA0458ZZ