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2002
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Astro Van Passenger, AWD
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Repair and Diagnosis (Single Page)
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Brakes
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Traction Control
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Anti-Lock Brake System
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Diagnostic Information & Procedures
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DTC C0235: Rear Wheel Speed Signal Circuit Open; C0236: Rear Wheel Speed Signal Circuit Missing; C0237: Rear Wheel Speed Signal Erratic; P1504: Vehicle Speed Output Circuit
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Conditions for Setting the DTC
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P1504
Conditions for Setting the DTC: P1504
The PCM detects low voltage on the vehicle speed signal circuit for 45 seconds.