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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 787 (Antilock Brake System With TCVS & VSES) >> Diagnostic Information and Procedures >> DTC C0229 (W/O JL4): Simultaneous Drop Out of Front Wheel Speed Signals >> Circuit Description

Circuit Description

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As the wheel spins, the wheel speed sensor produces an AC signal. The EBCM uses the frequency of the AC signal to calculate the wheel speed.

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