The first step is an automatic self-test. ![]() The ABS (and ATC, if equipped) system has built-in diagnostics to ensure that all components are operating correctly. The J1587-code method provides more information about the specific problem than can be obtained from the blink codes. Troubleshoot using the instrument panel blink codes (with or without Pro-Link 9000 ). Troubleshoot using J1587 codes viewed on a computer with Freightliner s ServiceLink installed. If any of these lights come on after the initial self-test, use one of the following methods to identify the problem: Troubleshoot using the Meritor WABCO PC Diagnostics software. This subject includes troubleshooting procedures for diagnosing problems indicated by the ABS warning light(s) or the ATC wheel spin indicator light (if equipped) on the instrument panel. ![]() Activation of the vehicle ATC on a dynamometer will cause unequal drive-wheel torque that can result in loss of vehicle control and personal injury or death. 1 (ABS) 2.22 Troubleshooting WARNING Before testing a vehicle equipped with Automatic Traction Control (ATC) on a dynamometer, the ATC system must be disabled.
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