Purkeys DIRECT PLUS Guida all'installazione

A MISSION CRITICAL ELECTRONICS BRAN

DIRECT™PLUS

DIAGNOSTIC GUIDE

300-48 R1.01

P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net

CONTENTS

Cover Assembly..................................................................................................2

Interior Light Module (optional) .....................................................................2

Connections Inside Nosebox............................................................................3

Connections Outside Nosebox.........................................................................3

Wire Diagram .....................................................................................................4

Basic Troubleshooting .......................................................................................4

No Lights on Face of the Nosebox..........................................................4

Batteries Not Being Charged ...................................................................6

Interior Lights Not Working (if installed)...........................................11

Limited Commercial Warranty Policy...........................................................13

COVER ASSEMBLY

INTERIOR LIGHT MODULE (OPTIONAL)

P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net

DIRECT PLUS DIAGNOSTIC GUIDE

CONNECTIONS INSIDE NOSEBOX

CONNECTIONS OUTSIDE NOSEBOX

Step 1: Make sure that connections

are tight and inspect wiring for

defects.

BASIC TROUBLESHOOTING

Step 2: Check the 2 amp fuse in

the battery box at the DC/DC

converter.

• If blown , replace

• If good, proceed

WIRE DIAGRAM

NO LIGHTS ON FACE OF THE NOSEBOX

P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net

DIRECT PLUS DIAGNOSTIC GUIDE

Step 3: Using a voltmeter, measure

the voltage at the 2-pin terminal

strip on the DC/DC converter

charging plate:

• Place the positive lead on the

ligate batt+ stud.

• Place the negative lead on the

ground stud.

• If there is a battery voltage

reading, skip to step 5.

• If no voltage is shown, proceed

to step 4.

Step 4: Check the 30 amp circuit

breaker using a voltmeter:

• Place the positive lead on

the circuit breaker stud that

connects to the red junction

stud closest to the DC/DC

converter on the plate.

• Place the negative lead on the

negative post of the battery.

• If there is a battery voltage

reading, proceed to the next

step.

• If no voltage is shown, reset the

circuit breaker.

• If there is still no voltage, check

wiring for defects.

• If no defects are found, replace

the circuit breaker

BATTERIES NOT BEING CHARGED

Step 1: Connect the tractor 7-way

cable to the trailer and start the

tractor.

• Place the voltmeter positive

lead on the stud labeled

positive input.

• Place the negative lead on the

negative battery post.

• If there is a voltage reading,

proceed to the next step.

• If there is no voltage reading,

skip to step 8.

Step 5: On the front of the trailer,

remove the hardware holding the

cover assembly to the nosebox

base.

• Place the voltmeter positive

lead where the orange wire is

connected.

• Place the negative lead where

the white wire is connected.

• Check the battery voltage

reading.

• If there is a battery voltage

reading, replace the cover

assembly on the base.

• If there is no voltage reading,

inspect the wiring for defects

and repair any issues.

P: 479.419.4800 | F: 479.419.4801 | www.purkeys.net

DIRECT PLUS DIAGNOSTIC GUIDE

Step 2: Next:

• Place the voltmeter positive

lead on the yellow wire stud

labeled ignition.

• Place the negative lead on the

negative battery post.

• Battery voltage should read

approximately 10-13 volts.

Step 3: Unplug the 4-pin connector

from the DC/DC converter.

• Place the voltmeter positive

lead in pin #1 (12v + input).

• Place the negative lead in pin

#3 (ground).

Readings should be approximately

the tractor voltage:

• If yes, go to the next step.

• If no, inspect the wiring and

plug.

Step 4: Next:

• Place the voltmeter negative

lead in pin #3 (ground).

• Place the positive lead in pin #4

(ignition).

Reading should be approximately

10-13 volts.

• If yes, go to the next step.

• If no, inspect the wiring and

plug.

Step 5: Next:

• Place the voltmeter negative

lead on the negative battery

post.

• Place the positive lead on the

red junction stud closest to the

converter.

Reading should be 13+ volts.

• If yes, proceed to the next step.

• If no, replace the wiring from

the converter to the converter

plug.

Step 6: Next:

• Place the voltmeter negative

lead on the negative battery

post.

• Place the positive lead on the

circuit breaker post away from

the battery.

Reading should be 13+ volts.

• If yes, proceed to the next step.

• If no, inspect the wiring

between the junction stud and

the circuit breaker and repair

any issues.

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