DRAPER 16422 6-30V-D.C. Diagnostic Probe Instruction Manual

: June 5, 2024
: DRAPER

Table of Contents

DRAPER 16422 6-30V-D.C. Diagnostic Probe
INSTRUCTIONS
GUARANTEE
SPECIFICATION
IDENTIFICATION
UNPACKING & CHECKING
OPERATING INSTRUCTIONS
FREQUENCY
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

DRAPER 16422 6-30V-D.C. Diagnostic Probe

IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY TO ENSURE THE SAFE AND EFFECTIVE USE OF THIS PRODUCT.

INSTRUCTIONS

These instructions accompanying the product are the original instructions. This document is part of the product, keep it for the life of the product passing it on to any subsequent holder of the product. Read all these instructions before assembling, operating or maintaining this product. This manual has been compiled by Draper Tools describing the purpose for which the product has been designed, and contains all the necessary information to ensure its correct and safe use. By following all the general safety instructions contained in this manual, it will ensure both product and operator safety, together with longer life of the product itself. AlI photographs and drawings in this manual are supplied by Draper Tools to help illustrate the operation of the product. Whilst every effort has been made to ensure the accuracy of the information contained in this manual, the Draper Tools policy of continuous improvement determines the right to make modifications without prior warning.

INTRODUCTION:
USER MANUAL FOR: 6-30V/D.C. DIAGNOSTIC PROBE Stock no. 16422 Part no. DP101.

REVISIONS:
Downloads are available from: http://www.drapertools.com/manuals DRAPER TOOLS LIMITED WEBSITE: drapertools.com HURSLEY ROAD PRODUCT HELPLINE: +44 (0) 23 8049 4344 CHANDLER’S FORD GENERAL FAX: +44 (0) 23 8026 0784 EASTLEIGH HAMPSHIRE SO53 1YF UK

UNDERSTANDING THIS MANUALS SAFETY CONTENT:

WARNING! Information that draws attention to the risk of injury or death.
CAUTION! Information that draws attention to the risk of damage to the product or surroundings.

COPYRIGHT © NOTICE:
Copyright © Draper Tools Limited. Permission is granted to reproduce this publication for personal & educational use only. Commercial copying, redistribution, hiring or lending is prohibited. No part of this publication may be stored in a retrieval system or transmitted in any other form or means without written permission from Draper Tools Limited. In all cases this copyright notice must remain intact.

GUARANTEE

Draper tools have been carefully tested and inspected before shipment and are guaranteed to be free from defective materials and workmanship. Should the tool develop a fault, please return the complete tool to your nearest distributor or contact Draper Tools Limited, Chandler’s Ford, Eastleigh, Hampshire, SO53 1YF. England. Telephone Sales Desk: (023) 8049 4333 or Product Helpline (023) 8049 4344. A proof of purchase must be provided with the tool. If upon inspection it is found that the fault occurring is due to defective materials or workmanship, repairs will be carried out free of charge. This guarantee period covering parts/labour is 12 months from the date of purchase except where tools are hired out when the guarantee period is 90 days from the date of purchase. This guarantee does not apply to normal wear and tear, nor does it cover any damage caused by misuse, careless or unsafe handling, alterations, accidents, or repairs attempted or made by any personnel other than the authorised Draper warranty repair agent.

Note: If the tool is found not to be within the terms of warranty, repairs and carriage charges will be quoted and made accordingly. This guarantee applies in lieu of any other guarantee expressed or implied and variations of its terms are not authorised. Your Draper guarantee is not effective unless you can produce upon request a dated receipt or invoice to verify your proof of purchase within the guarantee period. Please note that this guarantee is an additional benefit and does not affect your statutory rights. Draper Tools Limited.

SCOPE
This electrical tester reduces diagnostic time in all 6 to 30-volt vehicle electrical systems. Simply hook-up the tool to the vehicle’s battery.

SPECIFICATION

Stock no. …………………………………………………………………………………………………………….16422
Part no. ……………………………………………………………………………………………………………. DP101
DC voltage range……………………………………………………………………………………… 0-65V +1 digit
Resistance range…………………………………………………………………………………………….. 0-100KΩ
Frequency response of tone passes through …………………………………………………0Hz to 10Khz
Rating current………………………………………………………………………………………………….1-10Amp
Testing standard
100% current……………………………………………………………………………………Hold >1 hour
150% current…………………………………………………………………………………trip in one hour
200% current…………………………………………………………………………. trip in 3-30 seconds
300% current……………………………………………………………………… trip in 0.5-4.0 seconds
Display……………………………………………………………………….. TFT colour display (160 x 128 dpi)
Operating Temperature…………………………………………………………………0 to 60ºC (32 to 140 F°)
Storage Temperature………………………………………………………………. -40 to 70ºC (-40 to 185 F°)
External Power…………………………………………12.0 or 24.0V power provided via vehicle battery
Dimensions(LWH)…………………………………………………………………………………..1784728mm
Weight (nett)………………………………………………………………………………………………………..0.1kg

HANDLING & STORAGE
Although this machine is small in size, care must still be taken when handling. Dropping this machine will have an effect on the accuracy. This machine is not a toy and must be respected. The environment will have a negative result on its operation if you are not careful. If the air is damp, components will rust. If the machine is unprotected from dust and debris; components will become clogged: And if not cleaned and maintained correctly or regularly the machine will not perform at its best.

SAFETY PRECAUTIONS AND WARNINGS
To prevent personal injury or damage to vehicles and/or the test tool, read this instruction manual first and observe the following safety precautions at a minimum whenever working on a vehicle:

Always perform automotive testing in a safe environment;
Wear safety eye protection that meets ANSI standards;
Keep clothing, hair, hands, tools, test equipment, etc. away from all moving or hot engine parts;
Operate the vehicle in a well ventilated work area: Exhaust gases are poisonous
Put blocks in front of the drive wheels and never leave the vehicle unattended while running tests. Use extreme caution when working around the ignition coil, distributor cap, ignition wires and spark plugs. These components create hazardous voltages when the engine is running.
Put the transmission in PARK (for automatic transmission) or NEUTRAL (for manual transmission) and make sure the parking brake is engaged.
Keep a fire extinguisher suitable for gasoline/chemical/electrical fires nearby.
Don’t connect or disconnect any test equipment while the ignition is on or the engine is running.
Keep the tool dry, clean, free from oil/water or grease. Use a mild detergent on a clean cloth to clean the outside of the test tool, when necessary.
When the power switch in the tool is depressed battery current /voltage is conducted directly to the tip which may cause sparks when contacting ground or certain circuits. Therefore the tool should NOT be used around flammables such as gasoline or its vapours. The spark of an energized tool could ignite these vapours. Use the same caution as you would when using an arc welder.

IDENTIFICATION

Probe Tip connection
Work Lights
Red Polarity Indicator
Green Polarity Indicator
LCD Display
Power switch
Mode button
Auxiliary ground lead
Power connection

UNPACKING & CHECKING

PACKAGING
Carefully remove the product from the packaging and examine it for any sign of damage that may have happened during shipping. Lay the contents out and check them against the parts shown below. If any part is damaged or missing; please contact the Draper Helpline (the telephone number appears on the Title page) and do not attempt to use the tool. The packaging material should be retained at least during the guarantee period: in case the machine needs to be returned for repair. Warning! Some of the packaging materials used may be harmful to children. Do not leave any of these materials in the reach of children. If any of the packaging is to be thrown away, make sure they are disposed of correctly; according to local regulations.

WHAT´S IN THE BOX?
As well as the product; there are several parts not fitted or attached to it.

12V adaptor.
Battery hookup clips.
Probe tips.
Extension cable.

OPERATING INSTRUCTIONS

GENERAL DESCRIPTION

The tool is ideal for reducing diagnostic time in all 6 to 30-volt vehicle electrical systems. After a simple hook-up of the tool to the vehicle’s battery, you can:

Determine at a glance if a circuit is positive, negative, or open without having to reconnect clips from one battery pole to another.
Test for continuity with its built-in auxiliary ground lead.
By depressing the power switch, conduct a positive or negative battery current to the probe tip for testing the function of an electrical component.
Test for poor ground contacts instantly without performing voltage drop tests. The tool is also short – circuit protected; its internal circuit breaker will trip if it becomes overloaded
Follow and locate short circuits without wasting fuses. The tool’s long cable allows you to test along the entire length of the vehicle without constantly searching for suitable vehicle grounds.

POWER
The tool is powered via the vehicle battery. Connect the RED battery clamp to the POSITIVE terminal of the vehicle’s battery, and the BLACK clamp to the NEGATIVE terminal. When the tool is first connected to a battery (power source), it will sound a beep and the Work Lights will be on to illuminate the test area of the probe tip.

QUICK SELF-TEST
Before you test a circuit or component, be sure your tool is in good order by doing a quick self-test. With the tool connected, perform a quick self-test. The power switch is a momentary rocker switch located on the tool’s body. Flanking the switch are positive and negative markings. Press the Power Switch forward to activate the tip with a positive voltage. The Red LED should light and the LCD display will read the battery voltage. A beep tone will sound. Let go of the power switch and the LED will turn off and the tone will cease. Press the Power Switch rearward to activate the tip with a negative voltage. The Green LED should light and the LCD display will read the 0.0V (ground). A beep tone will sound. Let go of the power switch and the LED will turn off and the tone will cease. Your tool is working correctly and is now ready for use.
IMPORTANT: When powering-up components, you can increase the life of power switch in the tool if you first press the switch, then contact the tip to the component. The arcing will take place at the tip instead of the contacts of the switch.

AUTO CIRCUIT BREAKER
The tool is short-circuiting protected. Its internal circuit breaker will trip if it becomes overloaded. The circuit breaker is a valuable test tool as well as a safety measure to protect the tool from overload. When circuit breaker tripped, the LCD will display as Fig.2. All other functions of the tool are still active, which means you can still probe a circuit and observe the voltage reading. When the circuit breaker is tripped, the tool will NOT be able to conduct battery current to the tip even when the power switch is pressed. Intentionally tripping the breaker and using the tool to probe can be considered an added precaution against accidental pressing of the power switch.

WORK MODE
There are four modes to diagnose the electrical systems, which can be accessed by depressing the Mode Button and cycling through each one.

DC VOLTAGE
While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the DC voltage with a resolution of 0.1 volt.

FREQUENCY

While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the Max. Voltage, the Min. voltage and frequency

RESISTANCE
While the tool in this mode, contacts the probe tip to a circuit, then the LCD display will read the resistance between the tip and auxiliary ground lead.

DIODE
The diode work mode is to test the polarity of PN junction of the diode. Contact the probe and the black alligator clip to two electrodes of diode. After getting the result, exchange the position of probe and the black alligator clip to get the other result. One of the results will have a relatively larger resistance value or infinite value (Reverse Conduction), the other one will have smaller resistance value. (Forward conduction) In the measurement result with smaller resistance value, it is the anode that the probe is contacted to; the black alligator clip is contacted to the cathode of the diode. If the resistance value in both measurements is shown as “0.0Ω”, it means the diode is broken down and damaged.

VOLTAGE & POLARITY TESTING
While the tool is in DC Voltage mode, contact the probe tip to a POSITIVE circuit. The red LED will light and the LCD displays the voltage with a resolution of 0.1V. A beep tone will sound. If contact the probe tip to a NEGATIVE circuit, the green LED will light and the LCD displays the voltage with a resolution of 0.1V. A beep tone will sound. If contact the probe tip to an OPEN circuit, neither of the LED will light.

CONTINUITY TESTING While the tool is in Resistance mode, using the probe tip with chassis is ground or the auxiliary ground lead, continuity can be tested on wires and components attached or disconnected from the vehicle’s electrical system. When the probe tip is contacting a good ground, the LCD will indicate “0.0Ω” and green LED will be on. A beep tone will sound.

TEST APPLICATIONS
In other cases, the LCD only indicates the resistance value. If the resistance value is greater than 100 kΩ, the LCD will show “0L”. There is also another way to prove the continuity of connections to the ground or battery. Power up the connection by using the power switch. If the circuit breaker trips you know that you have a good solid low resistance connection.
NOTE: You can use the probe tip to pierce the plastic insulation on a wire. This means that you can test the circuit without disconnecting anything.

SIGNAL CIRCUIT TESTING
Once you extract a DTC from the vehicle and realize that trouble-shooting begins with some kind of sensor circuit, there is a quick test you can perform to verify the code. Testing your sensor is easy while using the tool. For example, you suspect there is a problem with your M.A.P. Sensor circuit, then follows the procedure involved in testing this sensor:

Set the tool in AC Voltage mode, using the probe tip with chassis ground or the auxiliary ground lead.
Connect vacuum pump to MAP sensor.
Contact the probe tip to the MAP sensor positive terminal and observe the LCD readings which should be a sine wave in normal conditions.
Apply vacuum.
Release the vacuum and observe the LCD readings. If the LCD readings are abnormal, there is a problem with this sensor.

ACTIVATING COMPONENTS IN YOUR HAND
While the tool is in DC Voltage mode, by using the probe tip in connection with the auxiliary ground lead, components can be activated right in your hand, thereby testing their functions. Connect the auxiliary ground lead to the negative terminal or ground side of the component being tested. Then contact the probe tip to the positive terminal of the component, and the green LED should light, indicating continuity through the component. While keeping an eye on the green LED, quickly press and release the power switch forward. If the green LED went out and the red LED came on, you may proceed with further activation. Rock the power switch forward and hold it down to provide power to your component. With the power switch rocked forward, power will flow from the positive lead on the battery into the probe tip, through the tip into the component’s positive terminal, into the component and out of the component, through the auxiliary ground lead, and back into the tool, and back to the vehicle’s battery’s ground.

Press the power switch forward to activate the bulb.
Contact the tip to the positive terminal of the bulb
Connect the negative auxiliary clip. If the green LED went off at that instant or if the circuit breaker tripped and the tool has been overloaded. This could happen for the following reasons:
The contact you are probing is a direct ground or negative voltage.
The component you are testing is short-circuited.
The component is a very high current component (i.e., starter motor). If the circuit breaker is tripped, reset it by waiting for it to cool down (15 sec.)

TESTING TRAILER LIGHTS AND CONNECTIONS
While the tool in DC Voltage mode, clip the auxiliary ground lead to the trailer ground, probe the contacts at the jack, and then apply voltage to the probe tip. This lets you check the function and orientation of the connector and trailer lights. If the circuit breaker tripped, that contact is likely aground. Reset the circuit breaker by letting it cool down for 15 seconds.

ACTIVATING COMPONENTS IN THE VEHICLE
While the tool in DC Voltage mode, contact the probe tip to the positive terminal of the component, the green LED should light, indicating continuity to the ground. While observing the green LED, quickly depress and release the power switch forward. If the green LED went out and the red LED came on, you may proceed with further activation. If the green LED went off at that instant or if the circuit breaker tripped, the tool has been overloaded.

This could happen for the following reasons:
The contact you are probing is a direct ground.
The component you are testing is short-circuited.
The component is a very high current component (i.e., starter motor). If the circuit breaker is tripped, reset it by waiting for it to cool down (15 sec.).

WARNING: Haphazardly applying a voltage to certain circuits can cause damage to a vehicle’s electronic components. Therefore, it is strongly advised to use the vehicle manufacturer’s schematic and diagnosing procedure while testing.
NOTE: When powering up components, you can increase the life of the power switch if you first press the switch, then contact the tip to the component. The arcing will take place at the tip instead of the contacts of the switch.

ACTIVATING COMPONENTS W/GROUND
While the tool in DC Voltage mode, contact the probe tip to the negative terminal of the component, the red LED should light. While observing the red LED, quickly depress and release the power switch rearward. If the red LED went out and the green LED came on, you may proceed with further activation. If the green LED went off at that instant or if the circuit breaker tripped, the tool has been overloaded. This could happen for the following reasons:

The contact you are probing is a direct positive voltage.
The component you are testing is short-circuited.
The component is a very high current component (i.e., starter motor).
If the circuit breaker is tripped, reset it by waiting for it to cool down (15 sec.).

CHECKING FOR BAD GROUND CONTACTS
Probe the suspected ground wire or contact with the probe tip. Observe the green LED. Depress the power switch forward then release. If the green LED went out and the red LED came on, a beep will sound, this is not a true ground. If the circuit breaker tripped, this circuit is more than likely a good ground. Keep in mind that high current components such as starter motors will also trip the circuit breaker.

FOLLOWING & LOCATING SHORT CIRCUITS
In most cases, a short circuit will appear by a fuse or a fusible link blowing or an electrical protection device tripping (i.e., a circuit breaker). This is the best place to begin the search. Remove the blown fuse from the fuse box. Use the probe tip to activate and energize each of the fuse contacts. The contact which trips the circuit breaker is the shorted circuit. Take note of this wire’s identification code or color. Follow the wire as far as you can along with the wiring harness. Here is an example for this application.

If you are following a short in the brake light circuit, you may know that the wire must pass through the wiring harness at the door sill. Locate the colour-coded wire in the harness and expose it.
Probe through the insulation with the probe tip, and depress the power switch forward to activate and energize the wire. If the circuit breaker tripped, you have verified the shorted wire. Cut the wire and energize each end with the probe tip. The wire end which trips the circuit breaker again is the shorted circuit and it will lead you to the shorted area. Follow the wire in the shorted direction and repeat this process until the short is located.

RED/GREEN POLARITY LED
The Red/Green Polarity LED lights up when the probe tip voltage matches the battery voltage within ±0.4 volts. It is added information that could be valuable to the technician. If the circuit you are testing is not within a 0.4 volt (plus or minus) of supply voltage, you will see the voltage reading on the LCD but you will not hear a tone or see a red or green LED. This tells you either you have a voltage drop in excess of 0.8 volts from battery voltage or you are probing a circuit that has an increase of 0.8 volts or more over battery voltage. To determine battery voltage, simply remove the tip from the circuit and press the power switch forward. The battery voltage will then be displayed on the LCD. The difference between the battery voltage and what is read on the circuit is either voltage drop or voltage increase. This allows you to determine a voltage drop without running back to check the battery. It’s just another of the time-saving features the tool has.

DISPOSAL
At the end of the machine’s working life, or when it can no longer be repaired, ensure that it is disposed of according to national regulations.
Contact your local authority for details of collection schemes in your area. In all circumstances: