Fitment notes: Side post terminals; battery located in engine compartment
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Control Modules — 1984 Chevrolet Corvette
Every control module on the 1984-1996 Chevrolet Corvette — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Heating Ventilation Air Conditioning Programmer (HVAC Programmer)4.5 hr R&Rrelearn only +0.3 hrautomatic climate control (standard)▸ programming details
📍 center of HVAC plenum, behind center console
🔧 Self-calibration procedure
⚠️ Electronic servo-driven blend door actuator. Must perform self-calibration after installation (ignition on, press OFF and WARM simultaneously). Notorious for gear failure requiring replacement.
Digital Instrument Panel (DIC)3.0 hr R&Rno coding
📍 instrument panel behind LCD/VFD display
⚠️ Fully digital LCD (1984-1989) or VFD vacuum fluorescent (1990-1996) display. Receives data from ECM via serial link. No programming required but may require odometer transfer per state law.
Electronic Brake Control Module / Bosch ABS Modulator (EBCM/BPMV)2.0 hr R&Rrelearn only +0.3 hrABS option (standard 1986+)▸ programming details
📍 driver side frame rail, forward of driver door
🔧 Scan tool or drive cycle
⚠️ Bosch ABS 2 system (1986-1987), Bosch ABS 2S (1988-1991), Bosch ABS 2U (1992-1996). Integrated pump/motor/valve body assembly. Bleeding procedure critical after replacement.
Radio / Entertainment System (Radio)1.5 hr R&Rrelearn only +0.1 hr▸ programming details
📍 center stack, integrated with climate control panel
🔧 Theft code entry
⚠️ Delco/Bose systems standard. Theft-lock feature requires 3-digit code entry after power loss (1990+). Code typically on card in owner's manual or retrievable from dealer.
⚠️ PROM chip contains all calibration data and must be transferred or replaced. 1986+ uses 8,192-baud ALDL. 1995 models may support early flash programming. LT1 and LT5 engines use different ECM hardware.
Selective Ride Control Module (SRC)1.0 hr R&Rno codingSelective Ride Control option (FX3, 1989-1996)
📍 rear storage compartment, driver side
⚠️ Controls Bilstein electronic dampers with Tour/Sport/Performance modes. Dash switch communicates with module. No programming required.
Low Tire Pressure Warning Module (LTPW)0.8 hr R&Rrelearn only +0.2 hrLow Tire Pressure Warning system (standard 1989-1996)▸ programming details
📍 rear storage compartment, passenger side
🔧 Magnet relearn procedure
⚠️ Monitors wheel speed sensor differences to infer low tire pressure. Relearn requires magnet held to sensor in each wheel well in sequence. Not a true TPMS with pressure sensors.
Vehicle Anti-Theft System Module (VATS)relearn only +0.5 hr▸ programming details
📍 integrated within ECM and ignition lock cylinder
🔧 Resistor pellet key and 3-minute relearn
⚠️ Pass-Key I system (1986-1988) or Pass-Key II (1989-1996). Resistor pellet in key must match ECM-stored value. Relearn requires 3-minute wait with key on after failed attempt. No separate module; logic in ECM.
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 1984 Chevrolet Corvette 350ci V8 and can vary by trim.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.