Nissan Altima L32. Manual - part 1242

SEC-118

< COMPONENT DIAGNOSIS >

[COUPE]

KEY CYLINDER SWITCH

Is the inspection result normal?

YES

>> Replace main power window and door lock/unlock switch. Refer to 

PWC-91, "Removal and Instal-

lation"

.

NO

>> GO TO 2

2.

CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect door lock assembly LH (key cylinder switch) connector.

3. Check continuity between door lock assembly LH (key cylinder

switch) connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

1. Disconnect BCM connector M18.

2. Check continuity between door lock assembly LH (key cylinder

switch) connector D(10) terminals 5, 6 and BCM connector M18

(B) terminals 34, 56.

3. Check continuity between door lock assembly LH (key cylinder

switch) connector D10 (A) terminals 5, 6 and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch. 

Refer to 

SEC-118, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace door lock assembly LH (key cylinder switch). Refer to 

DLK-222, "FRONT DOOR LOCK :

Removal and Installation"

.

Component Inspection

INFOID:0000000004206140

COMPONENT INSPECTION

1.

CHECK DOOR KEY CYLINDER SWITCH

Door lock assembly LH con-

nector

Terminal

Ground

Continuity 

D10

4

Yes

LIIA0566E

Door lock assembly 

LH connector

Terminal

BCM connector

Terminal

Continuity

A: D10

5

B: M18

34

Yes

6

56

Door lock assembly 

LH connector

Terminal

Ground

Continuity 

A: D10

5

No

6

ALKIA0350ZZ

KEY CYLINDER SWITCH

SEC-119

< COMPONENT DIAGNOSIS >

[COUPE]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Check door lock assembly LH (key cylinder switch).

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Replace door lock assembly LH (key cylinder switch). Refer to 

DLK-222, "FRONT DOOR LOCK :

Removal and Installation"

.

Terminal

Key position

Continuity

Door lock assembly LH (key cylinder switch)

5 

4

Unlock

Yes

Neutral / Lock

No

6

Lock

Yes

Neutral / Unlock

No

ALKIA0351ZZ

SEC-120

< COMPONENT DIAGNOSIS >

[COUPE]

HORN

HORN

Description

INFOID:0000000004206141

Horn (high/low) is located inside of front bumper and operates when theft warning system is in alarm phase.

Component Function Check

INFOID:0000000004206142

1.

CHECK FUNCTION

1. Select HORN in “ACTIVE TEST” mode with CONSULT-III.

2. Check the horn (high/low) operation.

Is the operation normal?

YES

>> Inspection End.

NO

>> Refer to 

SEC-120, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000004206143

1.

CHECK HORN FUNCTION

Check horn function with horn switch
Do the horns sound?

YES

>> GO TO 2

NO

>> Refer to 

HRN-3, "Wiring Diagram - Coupe"

.

2.

CHECK HORN RELAY POWER SUPPLY

1. Turn ignition switch ON.

2. Perform “ACTIVE TEST” (“HORN”) with CONSULT-Ill.

3. Using an analog voltmeter or an oscilloscope, check voltage

between IPDM E/R connector E17 terminal 44 and ground.

Is the inspection result normal?

YES

>> Repair or replace harness between IPDM E/R and horn relay.

NO

>> GO TO 3.

3.

CHECK HORN RELAY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R and horn relay connector.

Test item

Description

HORN

ON

Horn relay

ON (for 20 ms)

ALKIA0424ZZ

IPDM E/R

Ground

Test item

Voltage (V)

(Approx.)

Connector

Terminal

E17

44

Ground

HORN

ON

Battery voltage 

→0 → Battery voltage

Other than above

Battery voltage

HORN

SEC-121

< COMPONENT DIAGNOSIS >

[COUPE]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

3. Check continuity between IPDM E/R harness connector and

horn relay harness connector.

4. Check continuity between IPDM E/R harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.Refer to 

PCS-48, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning part.

IPDM E/R

Horn relay

Continuity

Connector

Terminal

Connector

Terminal

A: E17

44

B: H-1

1

Yes

IPDM E/R

Ground

Continuity 

Connector

Terminal

A: E17

44

Ground

No

ALKIA0425ZZ