Nissan Frontier. Manual - part 251

DLK-50

< DTC/CIRCUIT DIAGNOSIS >

REMOTE KEYLESS ENTRY RECEIVER

Is the inspection result normal?

YES

>> GO TO 2

NO

>> GO TO 4

2.

REMOTE KEYLESS ENTRY RECEIVER 5-VOLT CIRCUIT INSPECTION

Check voltage between remote keyless entry receiver connector

M120 terminal 4 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> GO TO 4

3.

REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT INSPECTION

Check continuity between remote keyless entry receiver connector

M120 terminal 1 and ground.

Is the inspection result normal?

YES

>> Replace remote keyless entry receiver.

NO

>> GO TO 4

4.

HARNESS INSPECTION BETWEEN BCM AND RKE RECEIVER

1. Disconnect remote keyless entry receiver and BCM connectors.

2. Check continuity between BCM connector M18 terminals 18, 19,

20 and remote keyless entry receiver connector M120 terminals

1, 2, 4.

3. Check continuity between remote keyless entry receiver con-

nector M120 terminals 1, 2, 4 and ground.

Is the inspection result normal?

YES

>> Replace remote keyless entry receiver.

NO

>> Repair or replace the harness between the remote keyless entry receiver and BCM.

4 - Ground

: Approx. 5 volt.

PIIB6458E

1 - Ground

: Continuity should exist.

PIIB6460E

1 - 18

: Continuity should exist.

2 - 20

: Continuity should exist.

4 - 19

: Continuity should exist.

1 - Ground

: Continuity should not exist.

2 - Ground

: Continuity should not exist.

4 - Ground

: Continuity should not exist.

WIIA0308E

KEYFOB BATTERY AND FUNCTION

DLK-51

< DTC/CIRCUIT DIAGNOSIS >

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KEYFOB BATTERY AND FUNCTION

Description

INFOID:0000000009478913

The following functions are available when having and carrying electronic ID.

• Door lock/unlock

• Panic alarm

Remote control entry function and panic alarm function are available when operating the remote buttons.

Component Function Check

INFOID:0000000009478914

NOTE:

The Signal Tech II (J-50190) can be used to test the remote keyless entry keyfob relative signal strength.

Refer to the Signal Tech II User Guide for additional information.

1.

CHECK FUNCTION

With CONSULT

Check remote keyless entry receiver by pressing the keyfob lock and unlock buttons then monitoring "KEY-

LESS LOCK" and "KEYLESS UNLOCK" in Data Monitor mode "DOOR LOCK" with CONSULT.

Is the inspection result normal?

YES

>> Keyfob is OK.

NO

>> Refer to 

DLK-51, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009478915

NOTE:

The Signal Tech II (J-50190) can be used to test the remote keyless entry keyfob relative signal strength.

Refer to the Signal Tech II User Guide for additional information.

1.

CHECK KEYFOB FUNCTION

Check keyfob function using Signal Tech II Tool J-50190 or Remote

Keyless Entry Tester J-43241 (shown).
Does the test pass?

YES

>> Keyfob is OK. 

NO

>> GO TO 2

2.

 CHECK KEYFOB COMPONENTS

Monitor item

Condition

KEYLESS LOCK 

LOCK

: ON

UNLOCK

: OFF

KEYLESS UNLOCK 

LOCK

: OFF

UNLOCK

: ON

LEL946A

DLK-52

< DTC/CIRCUIT DIAGNOSIS >

KEYFOB BATTERY AND FUNCTION

1. Open the lid using a coin.

CAUTION:

• Do not touch the circuit board or battery terminal.

• The keyfob is water-resistant. However, if it does get wet,

immediately wipe it dry. 

2. Remove the keyfob battery.

CAUTION:

• Keep dirt, grease, and other foreign materials off the elec-

trode contact area.

3. Visually inspect keyfob internal components.
Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace malfunctioning parts.

3.

CHECK KEYFOB BATTERY

Check by connecting a resistance (approximately 300

Ω) so that the

current value becomes about 10 mA.

Is the measurement value within specification?

YES

>> Keyfob battery is OK. Check remote keyless entry

receiver. Refer to 

DLK-49,

"Component Function Check"

. 

NO

>> GO TO 4.

4.

 REPLACE KEYFOB BATTERY

1. Replace the keyfob battery, positive side down.

2. Align the tips of the upper and lower parts, and then push them

together until it is securely closed.

CAUTION:

• When replacing battery, keep dirt, grease, and other for-

eign materials off the electrode contact area.

3. After replacing the battery, check that all keyfob functions work

properly.

Is the inspection result normal?

YES

>> Keyfob is OK.

NO

>> Check remote keyless entry receiver. Refer to 

DLK-49,

"Component Function Check"

.

ALKIA1720GB

Standard

: Approx. 2.5 - 3.0V

OCC0607D

ALKIA1721GB

HORN FUNCTION

DLK-53

< DTC/CIRCUIT DIAGNOSIS >

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HORN FUNCTION

Description

INFOID:0000000009478916

Perform answer-back for each operation with horn.

Component Function Check

INFOID:0000000009478917

1.

CHECK FUNCTION

1. Use CONSULT to perform Active Test "MULTIREMOTE ENT".

2. Touch "HORN" to check that it works normally.

Is the operation normal?

YES

>> Inspection End.

NO

>> Refer to 

DLK-53, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009478918

Regarding Wiring Diagram information, refer to 

DLK-98, "Wiring Diagram - King Cab"

 or 

DLK-107, "Wiring

Diagram - Crew Cab"

.

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"

.

2.

CHECK HORN RELAY POWER SUPPLY

1. Turn ignition switch ON.

2. Perform "HORN" in Active Test mode for "MULTIREMOTE ENT" with CONSULT.

3. Using an oscilloscope or analog voltmeter, check voltage

between IPDM E/R connector E122 terminal 45 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-42, "Intermittent Incident"

.

NO

>> GO TO 3

3.

CHECK HORN RELAY CIRCUIT

Test item

Description

HORN

ON

Horn relay

ON (for 20 ms)

WIIA1251E

IPDM E/R

Ground

Test item

Voltage (V)

(Approx.)

Connector

Terminal

E122

45

Ground

HORN

OFF 

→ ON → OFF

Battery voltage 

→ 0 → Battery voltage

Other than above

Battery voltage