Cojali Jaltest SST Gebruikershandleiding - Pagina 10
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PASSIVE speed sensor:
In this mode, the Jaltest SST device generates a signal that simulates the behaviour
of an active sensor. When connecting the Jaltest SST device to the ECU and with the
help of a diagnosis device that shows the speed read by the ECU, the user will be able
to detect errors in the wiring or in the control unit itself.
1
Disconnect the speed sensor from the vehicle and connect instead the Jaltest SST
device through multipin cable kit according to the
diagram section
(it is possible to connect multipins to the ECU or to an intermediate
connector).
2
Turn on the device and go into
the selection button of the mode (1) according to the presses described in the
function table
on page 6. The
well as the LED of the errors that may appear.
Note: In case that the
short circuit error
3 is being carried out with just a short press of the selection button of the Mode.
3
Turn the ignition key of the vehicle to the ignition key position.
4
Use a diagnosis software to
verify that the ECU is reading
the speed simulated by the
device* (if you do not have a
diagnosis device, go to step 5).
If the ECU is not reading the
speed, perform short presses
of the selection button of the
mode (1) to reset the present
errors and adjust the signal
frequency gradually so that
it can be ready by the ECU.
In ABS sensors, the following
speeds are common:
* In case of not being able to connect to the system to perform the speed reading, try to connect with
the Jaltest SST device without going into the
into the
Passive Sensor Simulation
Notes:
- The speeds shown in the above table are merely indicative. The speed read depends on the vehicle
ECU and can vary significantly depending on it.
- If the speed cannot be read with the connections of
to invert the
«+»
and
signal
(ground connection). As a last step, invert the
Passive Sensor Simulation
Simulation and Passive sensor
appears in the Jaltest SST device, it can be removed once step
No. of presses
Start (go into
Sensor Simulation
Passive Sensor Simulation
mode to be able to read the speed values.
connections. If the speed is still not read, use the connections of
«+»
and
IMAGE 4
mode interacting with
LEDs must be on, as
Approximate speed (km/h)
Passive
mode)
1
2
3
4
mode. Once in the system, go
IMAGE 4
of the connection
signal
connections.
10
English
of the connection
7
30
45
60
90
diagram
section, try
IMAGE 5