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HMP 1-A
Model: 0120.00
Rev doc: 01
Electronic throttle tester
Users Manual
Connecting power supply Pág. 1
Selecting the right cable set Pág. 2
Making new cables Pág. 3
Plug the terminal block Pág. 4
Test an electronic throttle Pág. 4
Report on screen Pág. 5
Determining common fails Pág. 5
Troubleshooting Pág. 6
Short circuit protection Pág. 6
General warnings Pág. 7
Warranty Pág. 8
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Connecting power supply
The device need for work 12Vdc continuous. Become with 2
cocodriles to allow connect to car battery.
DO NOT USE battery chargers without a car battery.
Connecting terminal block
Once you choose the appropriate cable you must plug in the
rear connector.
Selecting test type
When you plug the power supply (12v) you will see the
principal menu on screen.
Using The keys “+” and “-” you can
choose the right test between the
following list:
1)Throttle ( electronic accelerators)
2) Pedal (electronic pedal)
3) TPS (Throttle Position Sensor)
4) Battery ( battery state analysis )
When you see into the screen the right test, press OK.
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Electronic Pedal test
Connect the pedal using the right connector or use the
crocodiles to connect following image.
After that you must press “+” and “-” keys until you see
PEDAL on screen, and press “OK”.
Now on the screen you will see 4 informations like the bellow
image:
A=You are testing a Pedal
B=Difference between C y D
C=TPS1 position (in %)
D=TPS2 position (in %)
To test it, allways with the engine off, press slowly up to reach
full press. Avoid fast movements.
If the pedal works correctally the TPS1 will show the double
that TPS2 (C = D * 2). The maximum difference reached
between the ideal and the real you can see in the zone marked a
zone B on screen.
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In the sample on image you can see that TPS2 show 30, so 30 *
2 = 60 and the TPS1 show 59. This say that you are seeing a
difference of 1% respect the ideal ( 60% vs 59%)
The max difference tolerated by the ECU change from car to
car, but generally is accepted up to 5% of difference.
Pressing th OK Button, you will come back to the principal
menu to perform another test.
TPS test
In the principal menu, press the keys “+” or “-” until you see
TPS on the screen, and press OK button.
After that plugging the TPS using the right the appropriated
connector, or use the crocodiles seeing the following diagram.
Move slowly the throttle. If the sensor works fine you will see
that the TPS1 indicator grow continuously and slowly without
peaks.
Pressing “OK” button you will return to the principal menu.
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Battery test
Into the principal menu, press the “+” or “-” keys until you see
BATTERY into screen.
The battery meter can measure the voltage from 8 up to 15.3
Volts. With lower voltages you will see wrong values, and with
upper voltages you will see 15.3 V as fixed number.
The HMP1 measure the actual voltage from battery more than
10 times at second. Also reminder the minimum and maximum
voltage reached by the car system..
A) You are testing BATtery
B) Stored voltage
C) The actual voltage
D)
If you press “-” key the B will show the minimum stored
If you press “+” key the B will show the maximum stored
If you press “OK” you will see a little report with minimum and
maximum, after that the HMP1 go to the principal menu.
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Testing of electronic throttle
1) THE ENGINE MUST BE STOPPED. The engine can be
damaged if is over accelerated moving the butterfly manually.
2) Choose the appropriate cable, check the connections,
specially the coil connection in the cable A & cable B.
3) Plug 12Vdc and throttle body and choose “throttle” on the
menu, then press ”OK”.
Into the screen you will see 4 informations similar to the image:
A=Opening level
B=Motor Coil current
C=TPS1 position (in %)
D=TPS2 position (in %)
4) Using “+” and “-” move the butterfly from min to max
opening. If you press both the butterfly will move alone.
If the throttle work fine the addition of TPS1 and TPS2 must be
of 100%.. If the addition result is different to 100% you will see
the maximum difference reached into the final report.
In the example of image you can see that 84+15 = 99%. This
mean that there are a difference of 1%. from the ideal ( 100%).
The max difference tolerated by the ECU is different form car
to car but generally is acceptable a value under 5%.
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Choosing the right cable
Before test any throttle body, the first is choose the right cable. For
this you must search in the following list, not only the right form, also
must check right connections.
This images are front view, seeing the throttle body.
A) Bosch 0280750085
Peugeot 307/Citroen C3,C4 Pin Func. Pin Func.
1 Coil+ 4 TPS2
2 Coil- 5 5V
3 GND 6 TPS1
B) Magnetti Marelli 44SMG2
Siena/Palio RST II 1.8 Pin Func. Pin Func.
1 GND 4 Coil+
2 TPS1 5 5V
3 Coil- 6 TPS2
C) Magnetti Marelli 44SMF8/36SMF7 - Bosch 032133062
Siemens VDO 022133062 / 408238329001 / 036133062P
Fiat Palio/Siena 1.4,1.0 - VW Fox/Gol/Golf
Pin Func. Pin Func.
/Polo/Bora/ - Audi
1 TPS1 4 TPS2
2 5V 5 Coil+
3 Coil- 6 GND
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D) Bosch 0280750137
Fiat Punto / Viper / Dodge RAM Pin Func. Pin Func.
1 Coil+ 4 Coil-
2 GND 5 TPS2
3 5V 6 TPS1
E) Delphi-GM 93397800/94705389/24579418
Chevrolet Corsa/Meriva/Montana 1.4/1.8 Pin Func. Pin Func.
A 5V D GND
B TPS2 E Coil+
C TPS1 H Coil-
F) Hitachi SERA576
Nissan 350z Pin Func. Pin Func.
1 5V 4 TPS1
Unconfirmed Pinout 2 TPS2 5 GND
3 Coil- 6 Coil+
New cables
In the future you will add new
connectors. So you will need know
about device connections looking the
image.
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Report on screen
After moving the butterfly from extreme to extreme, the devie
have all information to show the test result.
Press the button “OK”.
Result 1: integrity of TPS1, will show the minimum and
maximum TPS1 data.
Result 2: integrity of TPS2, will show the minimum and
maximum TPS2 data.
Result 3: The maximum difference between TPS1 & TPS2,
normally 3% (100-(T1+T2)).
Result 4: The maximum current of the coil. This is important to
discard short circuits.
When the report end, all stats are erased to a new test.
Determining common fails
-The coil have consumption, but the butterfly didn't move.
Exhausted gears.
-The difference between TPS1&TPS2 is more than 5%.
TPS dirty or exhausted.
-The movement is not smooth.
Suciedad, o engranaje dañado
-The throttle body is ok, but the car have
idle problems.
Dirty in the closing point, normally dust is
accumulated between the butterfly and the
venturi. Clean with dirty cloth.
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Most common trouble solutions
The device does not power up.
- Verify the right connection to 12V.
The butterfly close and the screen show ”Short Error”.
-A short circuit is detected. The system will stay freezed until you
push OK button.
The butterfly close and the screen show ”Fuse Error”.
-The internal fuse is opened due coil consumption excess. Wait few
minutes and press OK button. The fuse is automatically restored.
With the butterfly, the TPS1 show more than 50% and/or
the TPS2 show few than 50%.
-TPS1 & TPS2 are inverted
-TPS1 or TPS2 is damaged.
Short circuit protection
The device have a over consumption protection that abort the
test and show on screen until you press the “OK” button.
The device can be damaged in short circuits, and this
damages will void the warranty.
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General Warnings
-Do not wet the device, do not use chemicals to clean. Only a
slightly damp cloth.
-This device must do not enter in touch with hydrocarbons.
(Oil, Gas, Diesel, alcohol, etc etc etc)
-Do not connect the device to any voltage different to 12V.
-Do not plug more than one throttle body at once.
Note: The content of this manual can be changed in any
moment without notice. ---- SCHdev take all rights to make
the all changes that consider convenient to the manual and
product with the end to improve.
Note 2: All mentioned trademarks in this manual are propriety
of their respective owners and only are mentioned with the only
idea that the customer identify correctly the components.
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Warranty conditions
-General condition of warranty
SCHdev, warrant the right working of this product.
The warranty is for the following 3 (three) months starting in the purchase date, this cover
the materials and had handwork defects.
If while warranty is running, the device fail, SCHdev will repair the product. The repair
work is done into SCHdev placement and the shipping cost will be charged to the
customer.
All accessories that not are manufactured by SCHdev, the warranty are keeped by the
respective providers.
This warranty is the only gived by SCHdev, so any other claim are excluded.
- Conditions
The warranty only will be recognized with the presentation of this certificate with the date
of purchase, or the bill of purchase. The present warranty only will work with the customer
that are at day with the payments.
- Execution of warranty
1.- Periodic controls, maintenance, reparations, and pieces substitutions of pieces or spare
parts as result of normal usage.
2.- Any malfunction due bad usage, shocks, or usage out of specifications and any defect
not produced by defect of construction.
3.- Product, installed, modified, repaired, mounted or handled by personal unauthorized by
SCHdev.
4.- Accidents due to force major or other causes (water, fire, lightning, electromagnetic
fields, etc.) that do not depend SCHdev.
You can see other SCHdev products
HRR2: stepper motor & IAC valves tester
LPA3: Automatic lights turning ON
GLC3: Closed loop for NGV cars
GNC2: Digital indicator for NGV cars
SCH dev http://www.schdev.com.ar
Tel: 54 11 4639-5945 El araucano 1389 Cap Fed - Argentina.
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