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ABS/EBS Multi-Volt Diagnostic Tester
ABS/EBS Tester 12/24V is an innovative functional diagnostic device that is designed for basic
testing of the ISO 7638 prime mover and trailer outlets and the trailer EBS lead. It checks for open or short circuits and confirms that the required operational voltages are present across the 12 or 24V prime mover and all compliant trailers.
Through a fast and comprehensive test run sequence, the ABS/EBS Tester helps to identify sources of error in their exact position (prime mover, EBS coil or trailer unit), even those that are usually rather difficult to localise.
The test output (for all pins) shows on the integrated LED indicator display (green, red, and blue lights) mounted on the side of the tester.
At a high level, the tester performs the following tests on the 7-pin EBS system:
• Pins 1 & 4: Determines if the battery/permanent power and earth are present (12V or 24V) and within
voltage tolerances.
• Pins 2 & 3: Determines if the ignition power and earth are present (12V or 24V) and within voltage
tolerances.
• Pin 5: Determines if a fault is detected within the trailer combination. A faulty trailer corresponds with
the yellow in-cab warning light being ON. A compliant trailer(s) must be connected when interpreting
Pin 5 results.
• Pin 6 & 7: Determines the state of the EBS CAN Bus link to the trailer.
• Switch: This allows the user to isolate & test the functionality of the yellow warning lamp (without a
trailer connected)
• Measurements: 100mm x 100mm x 225mm long (approx.)
• Weight: 515g
• Power supply: Provided by the tractor/towing vehicle socket.
• Connectors: ISO 7638 multi-volt plug and unkeyed socket.
Contact No. |
Color |
Function |
1 |
Red |
Positive (+) electrovalve / permanent / solenoid control valve |
2 |
Black |
Positive (+) electronics / ignition |
3 |
Yellow |
Negative (-) electronics / ignition |
4 |
Brown |
Negative (-) electrovalve / permanent / solenoid control valve |
5 |
White |
Warning device / trailer |
6 |
White/Green |
CAN High / Hi |
7 |
White/Brown |
CAN Low / Lo |