WABCO iABS 2S/1M Standard Maintenance Manual page 8

Safety Information
Additionally, all standard trailer components, such as axles, should also be electrically connected to the
common chassis ground. If the axles are not correctly grounded to the chassis, a ground strap electrically
connecting the axle to the chassis must be added to ensure adequate protection from unwanted electrical
noise. This can be verifi ed by measuring the maximum resistance between the vehicle chassis/frame and
the other trailer component, then confi rming that the resistance is less than 10 ohm (< 10 ).
For more details concerning correct vehicle grounding, reference SAE standard J1908.
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