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Detroit Diesel  |  SKU: P23519308

P23519308 | Genuine Detroit Diesel® Engine Control Module S60 DDEC IV

$1,99900
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ConditionRemanufactured
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365-day / 100,000-mile limited warranty on U.S. orders. Return conditions apply. Mandatory legal rights remain unaffected.

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Description:
Engine Control Module P23519308 (also called ECU) — it’s the computer that manages various engine operations (fuel injection, ignition timing, emissions control, etc.). Engine Control Module For Detroit Diesel engines Series 60 12.7L, DDEC IV system (also works with some DDEC III setups)

Part Number: P23519308 
Condition: Remanufactured
Manufacture/Brand: Detroit Diesel

Fits P23519308 For Detroit Diesel engines Series 60 12.7L, DDEC IV system (also works with some DDEC III setups)

Class 8 semi trucks (Freightliner, Peterbilt, Kenworth, Western Star, etc.)

Some buses / motorcoaches
Industrial or generator setups using the Series 60 engine


Purpose of using P23519308:

Function What It Does
Fuel Management Controls fuel injection timing and amount
Ignition Timing Optimizes spark timing for power and efficiency
Idle Control Maintains stable engine idle under all conditions
Emissions Control Works with O2 sensors, EGR, etc., to reduce emissions
Turbo / Boost Control (diesel or turbo engines) Manages boost pressure safely
Diagnostic Monitoring Detects engine issues and stores trouble codes (DTCs)
Communication Talks to other systems (transmission, ABS, ESC) via CAN bus


Signs of Bad Engine Control Module P23519308:

  1. Check Engine Light (CEL)

    • Comes on unexpectedly

    • May store unrelated or confusing error codes

  2. Engine Misfires or Poor Performance

    • Hesitation, stalling, rough idle, or surging

    • Weak acceleration or random power loss

  3. Hard Starting or No Start

    • The engine cranks but doesn’t start

    • Or starts and immediately dies

    • No injector pulse or ignition spark

  4. Bad Fuel Economy

    • ECM may send incorrect fuel/air mix

    • Over-fueling or under-fueling conditions

  5. Transmission Shifting Problems (if TCM is integrated)

    • Erratic or harsh shifts

    • Stuck in a single gear

  6. Failed Emissions Test

    • If ECM can't regulate emissions, O2 sensors, or EGR

  7. Electrical Gremlins

    • Random warning lights

    • Intermittent loss of gauges or dashboard functions

  8. Unable to Communicate with Scan Tool

    • If ECM is dead, it won’t respond via OBD-II/CAN


About the Manufacturer – Detroit Diesel:

Detroit Diesel is a leading American manufacturer of heavy-duty diesel engines, transmissions, and aftertreatment systems, primarily for the commercial trucking industry. Founded in 1938 and now a subsidiary of Daimler Truck North America, Detroit is best known for its DD Series engines — including the DD13, DD15, and DD16 — which power Freightliner and Western Star trucks.

Detroit also produces advanced technologies such as Detroit™ Axles, Detroit™ Connect telematics, and integrated powertrains, offering fleet operators improved fuel efficiency, uptime, and diagnostics. The company is headquartered in Detroit, Michigan, and continues to play a central role in modernizing emissions systems and performance standards in heavy-duty transportation.

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