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Every control module on the 1971-1974 Dodge B100 — where it lives, replacement time, and what it takes to program a replacement.
Ignition Control Module (ICM)no coding
📍 Not applicable
⚠️ Does not exist on this generation. All ignition timing controlled by mechanical/vacuum advance distributor with breaker points or early electronic ignition (Chrysler Electronic Ignition introduced 1972-1973) with ballast resistor. No programmable module.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1971 Dodge B100 318ci V8 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.