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ACDELCO 21688
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$194.79
Price
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$63.00
Core
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+ Sold in packs of 1x1
Pack
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$257.79
Total
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(Only 1 Remaining)
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| ACDELCO 21688 Specifications |
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| Connector Gender | Female | | Connector Shape | Rectangular | | Height (IN) | 3.81 | | Length (IN) | 10.25 | | Mounting Hardware Included | No | | Programming Required | Yes | | Removable PROM | No | | Terminal Gender | Male | | Terminal Type | Pin | | Weight (lb) | 0.2 | | Width (IN) | 7.94 |
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| GM Original Equipment; Remanufactured; Local Programming Required |
An ACDelco GM Original Equipment Remanufactured Engine Control Module is a GM-recommended replacement for your vehicle's original component.Damaged and obsolete parts are replaced and are 100% end of line tested to ensure they perform to ACDelco specifications. This original equipment engine control module is engineered to fit your specific GM vehicle and will provide the same performance, durability, and service life you expect from General Motors.
Don't Misdiagnose Your ECM! Misdiagnosing an ECM is expensive and time consuming. Before assuming the ECM is at fault, follow these diagnostic steps:
| CHECK ECM INPUTS |
A weak or dead battery is the leading cause of improper ECM function. If the ECM is not receiving enough power (9-12 volts):
- Use a Battery Tester to test Battery voltage output (12.6 volts, with the engine off)
- Check wiring / function of Sensors, Ignition Switch and Fuses
SOLUTION: Replace Faulty Input
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| VISUALLY INSPECT ECM |
Voltage overload and moisture / corrosion are leading causes of ECM failure. Visually inspect the ECM for:
- Burnt / Melted plastic - often caused by voltage overload from a shorted Solenoid
- Moisture / Corrosion - often due to a faulty Seal, Wiring Harness or extended exposure to the elements
SOLUTION: Replace ECM and fix source of failure |
ACDelco Quality ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
| GM ORIGINAL EQUIPMENT |
| GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. |
| ACDELCO GOLD (PROFESSIONAL) |
| ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. |
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| OEM / Interchange Numbers: 09354896, 22805590 |
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