Operation CHARM
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Oldsmobile
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1994
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Cutlass Ciera L4-134 2.2L
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Repair and Diagnosis
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Brakes and Traction Control
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Antilock Brakes / Traction Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Mode Description
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Mode F4: ABS Tests
Mode F4: ABS Tests
In this mode, scan tool performs hydraulic modulator functional tests to assist in problem isolation during troubleshooting.