Nissan Frontier 2002 SE Crew Cab 2WD V6 3.3L Workshop Manual

nissan :: Nissan-Datsun Truck Frontier SE Crew
Cab 2WD V6-3.3L (VG33E) (2002)

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Accessory Delay Module: Description and Operation
SMART ENTRANCE CONTROL UNIT

The following systems are controlled by the Smart Entrance Control Unit.

*

Battery Saver

*

Warning Chime

*

Power Window Retained Power

*

Power Door Lock

*

Remote Keyless Entry System

*

Room Lamp Timer

*

Rear Window Defogger Timer

REFER TO........

See: Smart Entrance Control Unit

for further information on this control unit.

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Alarm Horn Relay: Locations

VEHICLE SECURITY (THEFT WARNING)

Component View D

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Horn Relay / VEHICLE SECURITY (THEFT WARNING SYSTEM)

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Engine Compartment

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Vehicle Security Lamp Relay

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Vehicle Security Relay

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Smart Entrance Control Unit: Locations

Passenger Compartment - Component Locations Overview

Component View C

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Smart Entrance Control Unit: Diagram Information and Instructions

How to Read Wiring Diagrams
How to Read Wiring Diagrams

CONNECTOR SYMBOLS

Most of connector symbols in wiring diagrams are shown from the terminal side.

- Connector symbols shown from the terminal side are enclosed by a single line and followed by the direction mark.

- Connector symbols shown from the harness side are enclosed by a double line and followed by the direction mark.

­Certain systems and components, especially related to OBD, may use a new style slide-locking type harness connector. For description and how todisconnect, refer to "HARNESS CONNECTOR".

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­Male and female terminalsConnector guides for male terminals are shown in black and female terminals in white in wiring diagrams.

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GI-EXAMPL-02

SAMPLE/WIRING DIAGRAM - EXAMPL -

Optional Splice

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Part 1

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Part 2
DESCRIPTION
Harness Indication

- Letter designations next to test meter probe indicate harness (connector) wire color.

- Connector numbers in a single circle M33 indicate harness connectors.

Component Indication

Connector numbers in a double circle F211 indicate component connectors.

Switch Positions

Switches are shown in wiring diagrams as if the vehicle is in the "normal" condition.

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A vehicle is in the "normal" condition when:

- ignition switch is "OFF",

- doors, hood and trunk lid/back door are closed,

- pedals are not depressed, and

- parking brake is released.

Detectable Lines and Non-Detectable Lines

In some wiring diagrams, two kinds of lines, representing wires, with different weight are used.

­A line with regular weight (wider line) represents a "detectable line for DTC (Diagnostic Trouble Code)". A "detectable line for DTC" is a circuitin which ECM can detect its malfunctions with the on board diagnostic system.

­A line with less weight (thinner line) represents a "non-detectable line for DTC". A "non-detectable line for DTC" is a circuit in which ECMcannot detect its malfunctions with the on board diagnostic system.

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Multiple Switch

The continuity of multiple switch is described in two ways as shown below.

- The switch chart is used in schematic diagrams.

- The switch diagram is used in wiring diagrams.

Reference Area

The Reference Area of the wiring diagram contains references to additional electrical reference pages at the end of the manual. If connector numbers andtitles are shown in the Reference Area of the wiring diagram, these connector symbols are not shown in the Connector Area.

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Abbreviations
How to Read Harness Layout

The following Harness Layouts use a map style grid to help locate connectors on the drawings:

- Main Harness and Body No.2 Harness

- Engine Room Harness (Engine Compartment)

TO USE THE GRID REFERENCE

1. Find the desired connector number on the connector list.2. Find the grid reference.3. On the drawing find the crossing of the grid reference letter column and number row.4. Find the connector number in the crossing zone.5. Follow the line (if used) to the connector.

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CONNECTOR SYMBOL

Main symbols of connector (in Harness Layout) are indicated.

Harness Connector Descriptions

CONNECTOR SYMBOLS

Most of connector symbols in wiring diagrams are shown from the terminal side.

Connector symbols shown from the terminal side are enclosed by a single line and followed by the direction mark.
Connector symbols shown from the harness side are enclosed by a double line and followed by the direction mark.

Certain systems and components especially related to OBD may use a new style slide-locking type harness connector. For description and how todisconnect refer to "DESCRIPTION".See: Diagrams/Diagram Information and Instructions/How to Read Wiring Diagrams

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Male and female terminals

Connector guides for male terminals are shown in black and female terminals in white in wiring diagrams.

Normal Open, Normal Closed And Mixed Type Relays

Type Of Standardized Relays Part 1

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Type Of Standardized Relays Part 2

Wire Color Code Identification

Wiring Color Code

B

W
R
= Black = White = Red = GreenG

L

Y

LG

BR

OR O

P

PU V

GY GR

SB

CH
= Blue = Yellow = Light Green = Brown or = Orange = Pink or (violet) = Purple or = Grey = Sky Blue = Dark Brown = Dark GreenDG

Wiring Diagram Codes

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Wiring Diagram Codes (Cell Codes) Part 1

Wiring Diagram Codes (Cell Codes) Part 2

Use the chart to find out what each wiring diagram code stands for. Refer to the wiring diagram code in the alphabetical index to find the location of eachwiring diagram.

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Smart Entrance Control Unit: Diagnostic Aids

How to Follow Flowchart In Trouble Diagnosis

How to Follow Test Groups in Trouble Diagnoses

1. Work and diagnostic procedure

Start to diagnose a problem using procedures indicated in enclosed test groups.

2. Questions and required results.

Questions and required results are indicated in bold type in test group.

11 - 14 V

12 V 0 V

The meanings are as follows:a. Battery voltage -> or approximately b. Voltage: Approximately -> Less than c. Resistance: Continuity should exist -> Approximately 1 V 0 Ohms

3. Symbol used in illustration

Symbols included in illustrations refer to measurements or procedures. Before diagnosing a problem familiarize yourself with each symbol. Referto CONNECTOR SYMBOLS" and Key to Symbols Signifying Measurements or Procedures".

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4. Action items

Next action for each test group is indicated based on result of each question. Test group number is shown in the left upper portion of each testgroup.

Key to Symbol Signifying Measurements or Procedures

Key To Symbols Signifying Measurements Or Procedures Part 1

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Key To Symbols Signifying Measurements Or Procedures Part 2

Key to Symbols Signifying Measurements or Procedures

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How to Follow Test Groups in Trouble Diagnosis
INTRODUCTION

Trouble diagnoses indicates work procedures required to diagnose problems effectively. Observe the following instructions before diagnosing.NOTE:

WORK FLOW / Example

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SYMPTOM CHART / Example

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PRELIMINARY CHECK / Example

PRELIMINARY CHECK / Example

1. Before performing trouble diagnoses, read the "Preliminary Check", the "Symptom Chart" or the "Work Flow".

2. After repairs, re-check that the problem has been completely eliminated.

3. Refer to Component Parts and Harness Connector Location for the Systems described in each section for identification/location of components and
harness connectors.

4. Refer to the Circuit Diagram for quick pinpoint check. If you need to check circuit continuity between harness connectors in more detail, such as
when a sub-harness is used, refer to Wiring Diagram in each individual section and Harness Layout for identification of harness connectors.

5. When checking circuit continuity, ignition switch should be OFF.

6. Before checking voltage at connectors, check battery voltage.

7. After accomplishing the Diagnostic Procedures and Electrical Components Inspection, make sure that all harness connectors are reconnected as
they were.

Introduction
INTRODUCTION

OPEN:

A circuit is Open when there is no continuity through a section of the circuit.

There are two types of shorts.SHORT:

SHORT CIRCUIT -

When a circuit contacts another circuit and causes the normal resistance to change.When a circuit contacts a ground source and grounds the circuit.SHORT TO GROUND -

You may have to simulate vehicle vibrations while testing electrical components. Gently shake the wiring harness or electrical component to do this.

Refer to "HOW TO CHECK TERMINAL" to probe or check terminal.NOTE:

See: Diagrams/Diagnostic Aids/How to Check Terminals

Testing For "Opens" In the Circuit

TESTING FOR "OPENS" IN THE CIRCUIT

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In general testing electrical circuits is an easy task if it is approached in a logical and organized method. Before beginning it is important to have allavailable information on the system to be tested. Also get a thorough understanding of system operation. Then you will be able to use the appropriateequipment and follow the correct test procedure.

Before you begin to diagnose and test the system you should rough sketch a schematic of the system. This will help you to logically walk through thediagnosis process. Drawing the sketch will also reinforce your working knowledge of the system.

Continuity Check Method

The continuity check is used to find an open in the circuit. The Digital Multimeter (DMM) set on the resistance function will indicate an open circuit asover limit (no beep tone or no ohms symbol). Make sure to always start with the DMM at the highest resistance level.

To help in understanding the diagnosis of open circuits please refer to the schematic.

1. Disconnect the battery negative cable.2. Start at one end of the circuit and work your way to the other end. (At the fuse block in this example)3. Connect one probe of the DMM to the fuse block terminal on the load side.4. Connect the other probe to the fuse block (power) side of SW1.
Little or no resistance will indicate that portion of the circuit has good continuity.If there were an open in the circuit the DMM would indicate an over limit or infinite resistance condition. (point A)

5. Connect the probes between SW1 and the relay.
Little or no resistance will indicate that portion of the circuit has good continuity.If there were an open in the circuit the DMM would indicate an over limit or infinite resistance condition. (point B)

6. Connect the probes between the relay and the solenoid.
Little or no resistance will indicate that portion of the circuit has good continuity.If there were an open in the circuit the DMM would indicate an over limit or infinite resistance condition. (point C)

Any circuit can be diagnosed using the approach in the above example.

Voltage Check Method

To help in understanding the diagnosis of open circuits please refer to the schematic.

In any powered circuit an open can be found by methodically checking the system for the presence of voltage. This is done by switching the DMM to thevoltage function.

1. Connect one probe of the DMM to a known good ground.2. Begin probing at one end of the circuit and work your way to the other end.3. With SW1 open probe at SW1 to check for voltage.

Voltage:

Open is further down the circuit than SW1.

No Voltage:

Open is between fuse block and SW1 (point A).

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4. Close SW1 and probe at relay.

Voltage:

Open is further down the circuit than the relay.

No Voltage:

Open is between SW1 and relay (point B).

5. Close the relay and probe at the solenoid.

Voltage:

Open is further down the circuit than the solenoid.

No Voltage:

Open is between relay and solenoid (point C).

Any powered circuit can be diagnosed using the approach in the above example.

Testing For "Shorts" In the Circuit

TESTING FOR "SHORTS" IN THE CIRCUIT

Resistance Check Method

1. Disconnect the battery negative cable and remove the blown fuse.2. Disconnect all loads (SW1 open relay disconnected and solenoid disconnected) powered through the fuse.3. Connect one probe of the ohmmeter to the load side of the fuse terminal. Connect the other probe to a known good ground.4. With SW1 open check for continuity.

Continuity:

Short is between fuse terminal and SW1 (point A).

No Continuity:

Short is further down the circuit than SW1.

5. Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good ground. Then check for continuity.

Continuity:

Short is between SW1 and the relay (point B).

No Continuity:

Short is further down the circuit than the relay.

6. Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and a known good ground. Then check for
continuity.

Continuity:

Short is between relay and solenoid (point C).

No Continuity:

Check solenoid retrace steps.

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Voltage Check Method

1. Remove the blown fuse and disconnect all loads (i.e. SW1 open relay disconnected and solenoid disconnected) powered through the fuse.2. Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse terminal (one lead on the battery +
terminal side of the fuse block and one lead on a known good ground).

3. With SW1 open and the DMM leads across both fuse terminals check for voltage.

Voltage:

Short is between fuse block and SW1 (point A).

No Voltage:

Short is further down the circuit than SW1.

4. With SW1 closed relay and solenoid disconnected and the
DMM leads across both fuse terminals check for voltage.

Voltage:

Short is between SW1 and the relay (point B).

No Voltage:

Short is further down the circuit than the relay.

5. With SW1 closed relay contacts jumped with fused jumper wire check for voltage.

Voltage:

Short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).

No Voltage:

Retrace steps and check power to fuse block.

Ground Inspection

GROUND INSPECTION

Ground connections are very important to the proper operation of electrical and electronic circuits. Ground connections are often exposed to moisturedirt and other corrosive elements. The corrosion (rust) can become an unwanted resistance. This unwanted resistance can change the way a circuit works.

When inspecting a ground connection follow these rules:

1. Remove the ground bolt or screw.2. Inspect all mating surfaces for tarnish dirt rust etc.3. Clean as required to assure good contact.4. Reinstall bolt or screw securely.5. Inspect for "add-on" accessories which may be interfering with the ground circuit.6. If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the wires are clean, securely fastened and
providing a good ground path. If multiple wires are cased in one eyelet make sure no ground wires have excess wire insulation.

For detailed ground distribution information, refer to "GROUND DISTRIBUTION".See: Power and Ground Distribution

Voltage Drop Tests
VOLTAGE DROP TESTS

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Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drastically affect an electronically controlledcircuit. A poor or corroded ground can easily affect the circuit. Even when the ground connection looks clean there can be a thin film of rust on thesurface.

Voltage drop tests are often used to find components or circuits which have excessive resistance. A voltage drop in a circuit is caused by a resistancewhen the circuit is in operation.

0 ohms

Check the wire in the illustration. When measuring resistance with ohmmeter contact by a single strand of wire will give reading of . This wouldindicate a good circuit. When the circuit operates this single strand of wire is not able to carry the current. The single strand will have a high resistance tothe current. This will be picked up as a slight voltage drop.
Unwanted resistance can be caused by many situations as follows:

- Undersized wiring (single strand example)

- Corrosion on switch contacts

- Loose wire connections or splices.

If repairs are needed always use wire that is of the same or larger gauge.

Measuring Voltage Drop - Accumulated Method

1. Connect the voltmeter across the connector or part of the circuit you want to check. The positive lead of the voltmeter should be closer to power
and the negative lead closer to ground.

2. Operate the circuit.3. The voltmeter will indicate how many volts are being used to push" current through that part of the circuit.

Note in the illustration that there is an excessive drop between the battery and the bulb.4.1 volt

Measuring Voltage Drop - Step by Step

The step by step method is most useful for isolating excessive drops in low voltage systems (such as those in Computer Controlled Systems").

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Circuits in the Computer Controlled System" operate on very low amperage.

The (Computer Controlled) system operations can be adversely affected by any variation in resistance in the system. Such resistance variation may becaused by poor connection improper installation improper wire gauge or corrosion.
The step by step voltage drop test can identify a component or wire with too much resistance.

Control Unit Circuit Test

Case 1 Part 1

Case 1 Part 2

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Case 2

CONTROL UNIT CIRCUIT TEST

System Description:

When the switch is ON the control unit lights up the lamp.

Work Flow/Description

Cold or Hot Start Up
COLD OR HOT START UP

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On some occasions an electrical incident may occur only when the car is started cold. Or it may occur when the car is restarted hot shortly after beingturned off. In these cases you may have to keep the car overnight to make a proper diagnosis.

Electrical Load

ELECTRICAL LOAD

The incident may be electrical load sensitive. Perform diagnosis with all accessories (including A/C rear window defogger radio fog lamps) turned on.

Freezing

FREEZING

The customer may indicate the incident goes away after the car warms up (wintertime). The cause could be related to water freezing somewhere in thewiring/electrical system.

The second method is to put the suspect component into a freezer long enough for any water to freeze. Reinstall the part into the car and check for thereoccurrence of the incident. If it occurs repair or replace the component.

Heat Sensitive

HEAT SENSITIVE

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There are two methods to check for this. The first is to arrange for the owner to leave the car overnight. Make sure it will get cold enough to demonstratethe complaint. Leave the car parked outside overnight. In the morning, do a quick and thorough diagnosis of those electrical components which could beaffected.

The owner's problem may occur during hot weather or after car has sat for a short time. In such cases you will want to check for a heat sensitivecondition.
To determine if an electrical component is heat sensitive, heat the component with a heat gun or equivalent.

Do not heat components above . If incident occurs while heating the unit, either replace or properly insulate the component.60 C (140 F)

Introduction
INTRODUCTION

Sometimes the symptom is not present when the vehicle is brought in for service. If possible, recreate the conditions present at the time of the incident.

Doing so may help avoid a No Trouble Found Diagnosis. The following section illustrates ways to simulate the conditions/environment under which theowner experiences an electrical incident.
The section is broken into the six following topics:

- Vehicle vibration

- Heat sensitive

- Freezing

- Water intrusion

- Electrical load

- Cold or hot start up

Get a thorough description of the incident from the customer. It is important for simulating the conditions of the problem.

Vehicle Vibration
VEHICLE VIBRATION

The problem may occur or become worse while driving on a rough road or when the engine is vibrating (idle with A/C on). In such a case, you will wantto check for a vibration-related condition.

Connectors & Harness

HINT:

Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector terminals. A visual inspection may notreveal this without disconnecting the connector. If the problem occurs intermittently, perhaps the problem is caused by corrosion. It is a goodidea to disconnect, inspect and clean the terminals on related connectors in the system.

Sensors & Relays

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Determine which connectors and wiring harness would affect the electrical system you are inspecting.Gently shake each connector and harness while monitoring the system for the incident you are trying to duplicate. This test may indicate a loose or poorelectrical connection.

Gently apply a slight vibration to sensors and relays in the system you are inspecting.This test may indicate a loose or poorly mounted sensor or relay.

Engine Compartment

There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the things to check forare:

- Connectors not fully seated.

- Wiring harness not long enough and is being stressed due to engine vibrations or rocking.

- Wires laying across brackets or moving components.

- Loose, dirty or corroded ground wires.

- Wires routed too close to hot components.

To inspect components under the hood, start by verifying the integrity of ground connections.

First check that the system is properly grounded. Then, check for loose connection by gently shaking the wiring or components as previously explained.Using the wiring diagrams, inspect the wiring for continuity.

Behind the instrument panel

An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehicle vibration can aggravate a harness whichis routed along a bracket or near a screw.

Under seating areas

An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides) during vehicle vibration. If the wiring runsunder seating areas, inspect wire routing for possible damage or pinching.

Water Intrusion

WATER INTRUSION

The incident may occur only during high humidity or in rainy/snowy weather. In such cases the incident could be caused by water intrusion on anelectrical part. This can be simulated by soaking the car or running it through a car wash.Do not spray water directly on any electrical components.

Harness Wire Color and Connector Number Indication

Harness Wire Color and Connector Number Indication

There are two types of harness wire color and connector number indication.

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TYPE 1: HARNESS WIRE COLOR AND CONNECTOR NUMBER ARE SHOWN IN ILLUSTRATION

Letter designations next to test meter probe indicate harness wire color.Connector numbers in a single circle (e.g. M33) indicate harness connectors.Connector numbers in a double circle indicate component connectors.

TYPE 2: HARNESS WIRE COLOR AND CONNECTOR NUMBER ARE SHOWN IN TEXT

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Function And System Application

Loading Procedure

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Loading Procedure

CONSULT-II Data Link Connector (DLC) Circuit

The CONSULT-II must be used in conjunction with a program card. CONSULT-II does not require loading (Initialization) procedure.NOTE:

Inspection Procedure

Be sure the CONSULT-II is turned off before installing or removing a program card.

Nickel Metal Hydride Battery Replacement

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Nickel Metal Hydride Battery Replacement

CONSULT-II contains a Nickel Metal Hydride battery. When replacing the battery obey the following:

WARNING: Replace the Nickel Metal Hydride battery with genuine CONSULT-II battery only. Use of another battery may present a risk of

fire or explosion.The battery may present a fire or chemical burn hazard if mistreated.

Do not recharge, disassemble, or dispose of in fire.Keep the battery out of reach of children and discard used battery conforming to the local regulations.

Harness Connector
Description

HARNESS CONNECTOR (TAB-LOCKING TYPE)

- The tab-locking type connectors help prevent accidental looseness or disconnection.

- The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the illustration below.
Refer to description of the slide-locking type connector.

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Do not pull the harness when disconnecting the connector.CAUTION:

HARNESS CONNECTOR (SLIDE-LOCKING TYPE)

- A new style slide-locking connector is used on certain systems and components especially those related to OBD.

- The slide-locking type connectors help prevent incomplete locking and accidental looseness or disconnection.

- The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustration below.

Do not pull the harness or wires when disconnecting the connector.CAUTION:

Be careful not to damage the connector support bracket when disconnecting the connector.

Connector and Terminal Pin Kit

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Connector and Terminal Pin Kit

Use the connector and terminal pin kit listed when replacing connectors or terminals.
The connector and terminal pin kit contains some of the most commonly used NISSAN connectors and terminals.

How to Probe Connectors

How to Probe Connectors

Connector damage and an intermittent connection can result from improperly probing of the connector during circuit checks. The probe of a digitalmultimeter (DMM) may not correctly fit the connector cavity. To correctly probe the connector follow the procedures below using a "T" pin. For the

best contact grasp the "T" pin using an alligator clip.

PROBING FROM HARNESS SIDE

Standard type (not waterproof type) connector should be probed from harness side with "T" pin.

- If the connector has a rear cover such as an ECM connector; remove the rear cover before probing the terminal.

- Do not probe waterproof connector from harness side. Damage to the seal between wire and connector may result.

PROBING FROM TERMINAL SIDE

Female Terminal

Some connectors do not have a notch above each terminal. To probe each terminal remove the connector retainer to make contact space for probing.

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

There is a small notch above each female terminal. Probe each terminal with the "T" pin through the notch.Do not insert any object other than the same type male terminal into female terminal.

Male Terminal

Carefully probe the contact surface of each terminal using a "T" pin.Do not bend terminal.

How to Check Enlarged Contact Spring of Terminal

How to Check Enlarged Contact Spring of Terminal

An enlarged contact spring of a terminal may create intermittent signals in the circuit.
If the intermittent open circuit occurs follow the procedure below to inspect for open wires and enlarged contact spring of female terminal.

1. Assemble a male terminal and approx. of wire.10 cm (3.9 in)

Use a male terminal which matches the female terminal.

2. Disconnect the suspected faulty connector and hold it terminal side up.

3. While holding the wire of the male terminal try to insert the male terminal into the female terminal.
Do not force the male terminal into the female terminal with your hands.

4. While moving the connector check whether the male terminal can be easily inserted or not.

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

If the male terminal can be easily inserted into the female terminal replace the female terminal.

Waterproof Connector Inspection

Waterproof Connector Inspection

If water enters the connector it can short interior circuits. This may lead to intermittent problems.
Check the following items to maintain the original waterproof characteristics.

RUBBER SEAL INSPECTION

Most waterproof connectors are provided with a rubber seal between the male and female connectors. If the seal is missing the waterproof performancemay not meet specifications.The rubber seal may come off when connectors are disconnected. Whenever connectors are reconnected make sure the rubber seal is properly installedon either side of male or female connector.

WIRE SEAL INSPECTION

The wire seal must be installed on the wire insertion area of a waterproof connector. Be sure that the seal is installed properly.

Terminal Lock Inspection

Terminal Lock Inspection

Check for unlocked terminals by pulling wire at the end of connector. An unlocked terminal may create intermittent signals in the circuit.

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Page 59

Smart Entrance Control Unit: Electrical Diagrams

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Smart Entrance Control Unit / Circuit Diagram Part 1

Smart Entrance Control Unit / Circuit Diagram Part 2

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Smart Entrance Control Unit: Description and Operation
SMART ENTRANCE CONTROL UNIT

The following systems are controlled by the Smart Entrance Control Unit.

*

Warning Chime

*

Power Window Retained Power

*

Power Door Lock

*

Remote Keyless Entry System

*

Room Lamp Timer

*

Rear Window Defogger Timer

*

Battery Saver

For detailed description and wiring diagrams refer to each system.

SMART ENTRANCE CONTROL UNIT - Inputs/Outputs

The smart entrance control unit receives data from the switches and sensors to control their corresponding system relays and actuators.

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Power is supplied at all times to smart entrance control unit terminal 49

-

through fuse [No.28 located in the fuse block (J/B)].9.5 A

Ground is supplied to smart entrance control unit terminals 43 and 64.

When the smart entrance control unit receives LOCK or UNLOCK signal from keyfob with all doors closed, power is supplied through smart entrancecontrol unit terminal 47

- to front combination lamp LH terminal 1

- to combination meter terminal 11

- to rear combination lamp LH terminal 3.

Power is supplied through smart entrance control unit terminal 48

- to front combination lamp RH terminal 1

- to combination meter terminal 28

- to rear combination lamp RH terminal 3.

Ground is supplied to terminal 2 of each front combination lamp through body grounds E12 and E54.
Ground is supplied to terminal 2 of rear combination lamp LH through body grounds B6 and B10.
Ground is supplied to terminal 2 of rear combination lamp RH through body grounds B106 and B1116.
Ground is supplied to combination meter terminal 36 through body grounds M14 and M68.
With power and ground supplied, the smart entrance control unit controls the flashing of the hazard warning lamps.

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Smart Entrance Control Unit: Testing and Inspection

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Frontier SE Crew Cab 2WD V6-3.3L (VG33E) (2002)

Smart Entrance Control Unit Inspection Table Part 1

Smart Entrance Control Unit Inspection Table Part 2