Erratic operation of the speedometer may be noted on vehicles equipped with a passenger side motorized seat belt. This is generally caused by a failed Passive Belt Control Module (PBCM). Our technicians tell us that if the speedometer functions correctly with the PBCM disconnected the PBCM should be replaced.
Erratic Speedometer Operation on Dodge Shadow
Average mileage: 78,500 (65,000–92,000)
7 people reported this problem
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1994 Dodge Shadow 92,000 mi, Visitor
Speedometer works intermittently. Still not fixed