> Canonical page: https://dieselfuelinjectionrepair.com/parts/electronics-modules/

> Summary: Explore FICM, IDM, HFCM, VFCM and GPCM modules and controls. Find identification guidance and get help locating the right diesel electronic component.

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# Diesel Injection Electronics & Modules

Browse FICM, IDM, HFCM, VFCM and GPCM parts with identification help from our diesel specialists.

## Explore Parts for Your Diesel System

From FICM and IDM units to fuel-conditioning and glow-plug control modules, find the information you need to identify the right electrical component for your diesel engine. Our parts specialists can help with identification and availability questions.

### [Fuel Injection Control Modules (FICM)](/parts/fuel-injection-control-modules/)

A fuel-injection control module interfaces with electrically controlled injectors. Symptoms attributed to a module can overlap with wiring, supply voltage and injector concerns.

[Explore this component](/parts/fuel-injection-control-modules/)

### [Injector Driver Modules (IDM)](/parts/injector-driver-modules/)

An injector driver module is part of the electrical control chain for applicable diesel injection systems. A fault may also reside in wiring, connections or injectors.

[Explore this component](/parts/injector-driver-modules/)

### [Fuel Conditioning Modules (HFCM / VFCM)](/parts/fuel-conditioning-modules/)

Horizontal and vertical fuel conditioning module names appear on certain diesel fuel systems. They refer to system hardware, not a universal engine-control computer.

[Explore this component](/parts/fuel-conditioning-modules/)

### [Glow Plug Control Modules (GPCM)](/parts/glow-plug-control-modules/)

Glow-plug control modules manage electrical preheat on supported diesel engines. A cold-start complaint can also involve individual glow plugs, power supply or wiring.

[Explore this component](/parts/glow-plug-control-modules/)

## Need Help Matching a Part?

Send us the original part number, engine or equipment model, quantity and any photos of identification marks. Tell us whether you prefer new or refurbished where available. We can help confirm the right part and discuss ordering options.

Use the [component identification inquiry](/parts/find-a-part/) for a specific item, or browse the [DCT online store](/store/) for available products. For pump or injector repair, contact DCT before shipping so we can confirm acceptance and give you receiving instructions.