ignition

Ignition Control Module

for 2017 Dodge Viper 8.4L V10 · RWD

Difficulty

Moderate

Time

54 min

Tools

Steps

🔍Draft — verification in progress. This procedure was built from OLP's spec database on September 13, 2026 and is queued for line-by-line review by Chris Hackleman — master technicians with 20+ years each. That review typically completes within 3 days of generation, and this banner changes to a verified badge the moment it does. Until then, cross-check every torque value and fluid capacity against the factory manual, and stop if anything looks unsafe. If something looks off, report it below — a real person reads every report.

Procedure for removing and replacing the ignition control module (ICM) on a 2008 Dodge Viper 8.4L V10, including access to the module mounted on the engine.

Warnings

⚠Disconnect battery negative terminal and wait 2 minutes before beginning work to prevent electrical shorts and allow airbag system capacitors to discharge.

⚠The ignition control module contains sensitive electronics. Avoid touching connector pins and handle by the edges only.

ℹ️Engine must be cool to the touch before starting this procedure.

Tools required

10mm socket and ratchetEssential

8mm socket and ratchetEssential

Torx T20 driverEssential

Electrical contact cleaner

Dielectric grease

Trim panel removal tools

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Parts

Ignition Control Module × 1 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Park vehicle on level ground and engage parking brake.
Allow engine to cool completely.
Disconnect battery negative terminal and wait 2 minutes.
Ensure ignition key is removed from vehicle.

Procedure

1
Access engine compartment
Open hood and secure in upright position. Locate the ignition control module mounted on the driver side of the engine valley, near the firewall between the cylinder banks. The module is a rectangular black unit with multiple electrical connectors.
2
Remove engine cover if equipped
If your Viper is equipped with an engine cover, remove the fasteners securing it. Use appropriate socket to remove the mounting fasteners and lift the cover away to access the ignition control module area.
3
Disconnect electrical connectors
Locate the electrical connectors on the ignition control module. Press the locking tab on each connector and carefully pull straight back to disconnect. There are typically 2 large multi-pin connectors. Note the orientation of each connector for proper reinstallation.
4
Remove ICM mounting fasteners
Remove the 3 mounting bolts securing the ignition control module to its bracket using an 8mm socket. Support the module with one hand while removing the final bolt to prevent it from falling into the engine valley.
5
Remove ignition control module
Carefully lift the ignition control module up and out of the engine valley. Maneuver it clear of any surrounding hoses or wiring. Inspect the mounting surface on the bracket for corrosion or damage.
6
Inspect connectors and mounting points
Inspect the electrical connectors on the vehicle harness for corrosion, bent pins, or damage. Check the mounting bracket for cracks or stripped threads. Clean the mounting surface with electrical contact cleaner if needed. Apply dielectric grease to connector pins if replacement connectors show any signs of previous corrosion.
7
Install new ignition control module
Position the new ignition control module into the mounting bracket in the engine valley. Align the mounting holes with the bracket. Thread in the 3 mounting bolts by hand first to ensure proper thread engagement before tightening.
8
Tighten ICM mounting bolts
Tighten the 3 mounting bolts in a crossing pattern to ensure even pressure. Tighten securely but do not overtighten as the module housing can crack. Final tightening should be snug but not forced.
9
Reconnect electrical connectors
Reconnect both electrical connectors to the ignition control module, ensuring each connector is fully seated. You should hear and feel a positive click when each connector locks into place. Verify the locking tabs are fully engaged.
10
Reinstall engine cover
If removed, reinstall the engine cover by aligning it to the mounting points and securing with the original fasteners. Ensure no wiring or hoses are pinched beneath the cover.
11
Reconnect battery
Reconnect the battery negative terminal and tighten securely. Close the hood.

Reassembly

Reverse the removal steps, ensuring all electrical connectors are fully seated and locked.
Verify no tools or parts were left in the engine valley before closing the hood.

Verification

Turn ignition key to ON position (do not start) and verify no warning lights remain illuminated on the instrument cluster beyond normal bulb check.
Start the engine and verify it starts normally without extended cranking or misfires.
Allow engine to idle for 2 minutes and verify smooth operation with no misfire or rough idle conditions.
Test drive vehicle and verify normal acceleration and engine performance with no hesitation or stumbling.
Scan for diagnostic trouble codes with a scan tool to confirm no ignition system codes are present.