Fitment notes: DIN standard battery; European specifications
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Every control module on the 1986-1989 Volvo 240 — where it lives, replacement time, and what it takes to program a replacement.
Anti-Lock Brake System Control Module (ABS)1.8 hr R&Rno coding
📍 Left rear cargo area, behind side panel (wagon) or trunk (sedan)
⚠️ Optional Bosch ABS system introduced 1986-1987. Self-diagnostic with blink codes via dashboard warning lamp. No programming required after replacement.
Instrument Cluster (IC)1.5 hr R&Rno coding
📍 Dashboard behind instrument panel
⚠️ Electronic speedometer and some digital displays on later models; no programming required.
Engine Control Unit (ECU)1.2 hr R&Rrelearn only +0.5 hr▸ programming details
📍 Behind right-hand kick panel or under passenger seat
🔧 Volvo Diagnostic System (VDS) or EPROM replacement
⚠️ LH-Jetronic 2.2 or 2.4 system with Bosch ECU. Fault codes accessible via LED on ECU or via VDS tool. Adaptive fuel trim relearn required after replacement. EPROM chip replacement for fuel map changes.
Electronic Climate Control Module (ECC)1.0 hr R&Rno coding
📍 Behind center console climate control panel
⚠️ Optional automatic climate control on higher trim levels. Self-diagnostic capability with blink codes. No programming required.
Radio/Audio System (Radio)0.5 hr R&Rno coding
📍 Center dashboard radio slot
⚠️ Standalone unit with no vehicle integration requiring programming.
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 1988 Volvo 240 2.3L I4 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.