Nissan Titan A60. Manual - part 849

SEC-34

< DTC/CIRCUIT DIAGNOSIS >

HORN FUNCTION

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

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-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation of IPDM E/R"

.

NO

>> Repair or replace the malfunctioning part.

WIIA0679E

IPDM E/R

Horn relay

Continuity

Connector

Terminal

Connector

Terminal

E122

45

H-1

1

Yes

IPDM E/R

Ground

Continuity 

Connector

Terminal

E122

45

Ground

No

VEHICLE SECURITY INDICATOR

SEC-35

< DTC/CIRCUIT DIAGNOSIS >

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VEHICLE SECURITY INDICATOR

Description

INFOID:0000000006161597

• Vehicle security indicator is built in combination meter.

• NATS (Nissan Anti-Theft System) and vehicle security system conditions are indicated by blink or illumina-

tion of vehicle security indicator.

Component Function Check

INFOID:0000000006161598

1.

CHECK FUNCTION

1. Perform “THEFT IND” in the “Active Test” mode with CONSULT-III.

2. Check vehicle security indicator operation.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Refer to 

SEC-35, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006161599

Regarding Wiring Diagram information, refer to 

SEC-54, "Wiring Diagram"

.

1.

SECURITY INDICATOR LAMP ACTIVE TEST

With CONSULT-III

Check "THEFT IND” in "ACTIVE TEST" mode with CONSULT-III.

Without CONSULT-III

1. Disconnect BCM.

2. Check voltage between BCM harness connector M18 terminal

23 and ground.

Is the inspection result normal?

YES

>> Security indicator lamp is OK.

NO

>> GO TO 2

2.

SECURITY INDICATOR LAMP CHECK

Check security indicator lamp condition.
Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace security indicator lamp.

3.

CHECK HARNESS CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect BCM and security indicator lamp connector.

Test item

Description

THEFT IND

ON

Vehicle security indicator

ON

OFF

OFF

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M18

23

Ground

ON

0

OFF

Battery voltage

LIIA0523E

SEC-36

< DTC/CIRCUIT DIAGNOSIS >

VEHICLE SECURITY INDICATOR

3. Check continuity between BCM connector (A) M18 terminal 23

and security indicator lamp harness connector (B) M24 terminal

28.

4. Check continuity between BCM connector (A) M18 terminal 23

and ground.

Is the inspection result normal?

YES

>> Check the following:

• 10A fuse [No. 19, located in fuse block (J/B)]

• Harness for open or short between security indicator lamp and fuse

NO

>> Repair or replace harness.

23 - 28

: Continuity should exist.

23 - Ground

: Continuity should not exist.

LIIA2253E

BCM (BODY CONTROL MODULE)

SEC-37

< ECU DIAGNOSIS INFORMATION >

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ECU DIAGNOSIS INFORMATION

BCM (BODY CONTROL MODULE)

Reference Value

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VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

ACC ON SW

Ignition switch OFF or ON

Off

Ignition switch ACC

On

AIR COND SW

A/C switch OFF

Off

A/C switch ON

On

AIR PRESS FL

Front left tire air pressure value

kPa, kg/cm

2

, psi

AIR PRESS FR

Front right tire air pressure value

kPa, kg/cm

2

, psi

AIR PRESS RL

Rear left tire air pressure value

kPa, kg/cm

2

, psi

AIR PRESS RR

Rear right tire air pressure value

kPa, kg/cm

2

, psi

AUTO LIGHT SW

Lighting switch OFF

Off

Lighting switch AUTO

On

BRAKE SW

Brake pedal released

Off

Brake pedal applied

On

BUCKLE SW

Seat belt buckle unfastened

Off

Seat belt buckle fastened

On

BUZZER

Buzzer in combination meter OFF

Off

Buzzer in combination meter ON

On

CARGO LAMP SW

Cargo lamp switch OFF

Off

Cargo lamp switch ON

On

CDL LOCK SW

Door lock/unlock switch does not operate

Off

Press door lock/unlock switch to the LOCK side

On

CDL UNLOCK SW

Door lock/unlock switch does not operate

Off

Press door lock/unlock switch to the UNLOCK side

On

DOOR SW-AS

Front door RH closed

Off

Front door RH opened

On

DOOR SW-DR

Front door LH closed

Off

Front door LH opened

On

DOOR SW-RL

Rear door LH closed

Off

Rear door LH opened

On

DOOR SW-RR

Rear door RH closed

Off

Rear door RH opened

On

FAN ON SIG

Blower motor fan switch OFF

Off

Blower motor fan switch ON

On

FR FOG SW

Front fog lamp switch OFF

Off

Front fog lamp switch ON

On

FR WASHER SW

Front washer switch OFF

Off

Front washer switch ON

On