TrailerCheck Portable User Guide Manual
Please make sure you have read and understood the instructions before using this product.
Using the TrailerCheck
On opening the case you should hear a bleep; this confirms the microprocessor has powered up and the unit is ready for use. Fully closing the lid will automatically switch the unit off.
Plug the 24N, 24S & ABS/EBS leads into the trailer sockets, drop down the protection flap to revel the main control panel. Press the black 24 N button to scroll down the various normal outputs, side lights, circuit 1 & 2 indicators etc. You will hear the ticking of the relays, this switches the lights on for two seconds and off for one, operating in this way extends the battery life.
Please note that the stop lights do not flash as this would confuse the ABS warning lamp check, do not leave the lights on for any longer than necessary as this will drain the batteries
Scroll down using the 24S (green Button) to power the Reverse, Fog and Secondary ABS power. Note if the green ABS warning light flashes the correct code for the ABS system is fitted to the trailer, there is also a reverse and side light position to test the silent mode of some reversing warning devices.
To activate automatic full test, press the green 24S button until the Fog Lights LED is lit, press it once more and all the control lights will illuminate, the processor will sequence through every circuit one after the other this will be indicated by the lights moving to the next position after each flash.
Press and hold both the green and black buttons for 3 seconds, this puts the tester into diagnostic mode, this will enable the selected circuit to be powered continuously.
Pressing the red button powers the ABS / EBS via the dedicated ISO7638 lead. The EBS CAN line test is automatic and results are displayed. The Yellow In Cab warning light will flash depending on the ABS / EBS system installed on the trailer.
To save power the tester will turn off after approx. 10 mins, except when in diagnostic mode and using ABS/EBS power.
A double bleep indicates low battery, and NOTE, the tester cannot be used while on charge!
Charging TrailerCheck
To recharge, close the lid to switch off and connect the mains charger into the TrailerCheck on the side of the case. Now plug into a mains supply and turn on. Or connect to a vehicle cigar lighter
TrailerCheck ABS & EBS Fault Diagnostic
ABS – If the ABS circuit is OK you should see the YELLOW light flash on for 2 seconds and then off for 2 seconds then on all the time (this is dependant on the trailer system). If the ABS circuit has a fault the YELLOW light will be on all the time. If testing a Wabco VCS system, this light will be on all the time. If you have a fault, check all ABS sensors and pole ring with the aide automotive ABS Sensor Tester.
EBS – When the TrailerCheck tests each CAN line you will see on the front panel a HI and LO LED, if the ISO circuit is faulty the fault LED will be lit in RED under the corresponding CAN HI or LO LED, if OK the GREEN LED will be lit.
Trailer Cables
TrailerCheck has 3 cables connected to the inner case, you can identify each cable by…
Cable with the clamp – This is the ISO ABS / EBS cable
Black cable with no white front face – This is the main lighting circuit cable
Black cable with a white face – This is the secondary cable
TrailerCheck User Manual Quick Reference Guide