1998-1999 Acura CL Ignition Switch: Stalling, Recalls, and Replacement Guide
Your definitive guide to diagnosing and replacing the faulty ignition switch in your first-generation Acura CL, including critical recall information and immobilizer programming details.
- A critical safety recall (NHTSA 02V120000) was issued for the electrical ignition switch causing the engine to stall while driving. Check if your vehicle has had this free repair.
- The most common failure is the inexpensive electrical switch (Part # 35130-S84-A01), not the entire lock assembly. Replacing only the switch is an easy DIY job that does not require key reprogramming.
- If you replace the entire lock cylinder assembly, you must deal with difficult security shear bolts and pay for professional immobilizer key programming.
- The electrical switch is the same for both Manual and Automatic transmissions, but the full lock cylinder assemblies are different and not interchangeable.
Critical Safety Recalls for 1998-1999 Acura CL

Before diagnosing or replacing your ignition switch, you must be aware of two major safety recalls that affect this part. Your vehicle may be eligible for a free repair at an Acura dealership.
Engine Stalling Recall (NHTSA Campaign ID: 02V120000): This is the most critical issue. Electrical contacts inside the ignition switch can wear out, causing the engine to stall without warning while driving. This can lead to a complete loss of power and control, increasing the risk of a crash. The fix involves replacing the electrical portion of the ignition switch.
Shift Interlock Recall (NHTSA Campaign ID: 03V423000): This recall applies only to models with an automatic transmission. Wear in the lock cylinder mechanism can allow the key to be removed from the ignition when the shifter is not in the 'Park' position. This can lead to the vehicle rolling away unexpectedly. The fix involves inspecting and potentially replacing parts of the lock cylinder body.
You can check if these recalls have been performed on your vehicle by entering your VIN on the NHTSA or Acura owner's website.
Symptoms of a Failing Ignition Switch

A bad ignition switch can cause a variety of strange electrical problems. The most common symptoms include:
- Engine Stalls While Driving: The most dangerous symptom. The engine may shut off completely, often causing all the dashboard warning lights to illuminate as if you just turned the key on.
- Intermittent No-Start: You turn the key, and nothing happens, or you only hear a single click. The dashboard lights may or may not come on. Trying again might work, indicating a poor internal connection.
- Car Starts and Immediately Dies: The engine fires up but stalls right away as the switch fails to keep power flowing to the ignition and fuel systems.
- Key is Hard to Turn or Gets Stuck: This points to a mechanical failure in the lock cylinder itself, rather than the electrical switch.
- Accessories Don't Work Correctly: The radio, power windows, or climate control may not work in the 'ACC' or 'ON' positions, or they may cut out intermittently.
No specific OBD-II trouble codes point directly to a failing ignition switch. The failure often happens before the main computer is fully powered, or the power loss is so abrupt it doesn't have time to register a specific fault, though it may cause a variety of communication error codes with other modules.
The Most Important Choice: Electrical Switch vs. Full Assembly

The most crucial thing to understand is that the ignition system is made of two main parts that can be bought and replaced separately:
- The Electrical Ignition Switch: This is a small plastic and metal component that bolts to the back of the lock cylinder. It contains the electrical contacts that wear out and cause stalling. This part is inexpensive and relatively easy to replace.
- The Ignition Lock Cylinder Assembly: This is the entire mechanical housing that includes the lock your key fits into, the immobilizer pickup ring, and the steering lock mechanism. It is expensive and very difficult to replace.
Pro Tip: In over 95% of cases involving stalling or intermittent starting, only the electrical switch needs to be replaced. If your key still turns smoothly, you almost certainly do not need the full lock cylinder assembly. Replacing only the electrical switch saves a significant amount of money and time, and avoids the need for immobilizer reprogramming.
Buying a Used Ignition Switch: What to Look For

A used OEM electrical switch is an excellent, budget-friendly repair option. However, buying a complete used assembly comes with significant challenges.
Option 1: Buying a Used Electrical Switch (Recommended)
- Compatibility: The electrical switch (OEM Part # 35130-S84-A01 or 35130-S84-305) is the same for both automatic and manual transmission models. It is also shared with many other Honda and Acura models of the era, like the Accord and TL.
- What to Inspect: Check for any cracks in the plastic housing. Ensure the connector pins are straight and free of corrosion. Look for signs of overheating or melting, which would be a major red flag.
- Value: A used OEM switch is often higher quality than a cheap new aftermarket part. Since this part was the subject of a recall, even a used replacement is likely an updated, more durable version.
Option 2: Buying a Used Full Assembly (Use Caution)
Warning: Only buy a complete assembly if your lock cylinder is physically damaged or your key is stuck. This repair is significantly more complex.
- Compatibility is Key: You MUST buy an assembly that matches your vehicle's transmission type. The assembly for an automatic has a shift interlock mechanism that the manual version lacks. They are not interchangeable.
- Must Include Matching Keys: The assembly must come with the original keys that were used with it. The immobilizer chip is inside the key head, and the car's computer will need to be programmed to accept these new keys. Without the matching keys, the part is useless.
- Inspect for Smooth Operation: If possible, test the key in the lock. It should turn smoothly without binding from the LOCK to START positions.
Immobilizer and Programming Requirements
Your Acura CL is equipped with a transponder-based immobilizer system for theft prevention.
- If you replace ONLY the electrical switch: No programming is needed. You will reuse your original lock cylinder and keys, so the car's security system is not affected.
- If you replace the ENTIRE lock cylinder assembly: You MUST have the new keys programmed to your car's computer (ECU). The car will not start until this is done. This procedure requires special diagnostic equipment and must be performed by an Acura dealer or a qualified automotive locksmith. Expect to pay between $75 and $250 for this service.
Replacement Overview & Difficulty

Replacing the Electrical Switch Only (DIY Feasible)
- Difficulty: 2 out of 5
- Time: 0.5 - 1 hour
- Process: Disconnect the battery. Remove the plastic covers around the steering column (typically 3 Phillips screws). The electrical switch is at the back of the lock cylinder, held on by two small screws. Unplug the wire harness connector, swap the switch, and reassemble.
Replacing the Full Lock Cylinder Assembly (Professional Recommended)
- Difficulty: 5 out of 5
- Time: 2 - 4 hours
- Process: This job is difficult due to the two security shear bolts that hold the assembly to the steering column. These bolts are installed at the factory and their heads are designed to snap off, leaving a smooth, rounded top that cannot be turned with a normal socket.
- Removing Shear Bolts: Removal requires either a sharp chisel to hammer the bolts counter-clockwise, or carefully using a Dremel tool with a cutting disc to slice a groove into the bolt head, allowing you to use a flathead screwdriver to remove it. This must be done carefully to avoid damaging the steering column.
Pro Tip: When installing the new assembly, do not use new shear bolts. Instead, use standard M8 hex-head bolts of the same length and thread pitch. This will make any future repairs vastly easier.
Cost Comparison
| Part | New OEM | New Aftermarket | Used OEM |
|---|---|---|---|
| Electrical Switch Only | $115 - $170 | $25 - $65 | $15 - $40 |
| Full Lock Assembly (with keys) | Discontinued | Not Available | $75 - $125 |
Labor Costs:
- Electrical Switch Replacement: $75 - $125
- Full Assembly Replacement: $200 - $400 (due to shear bolts)
- Key Programming (if needed): $75 - $250
Frequently Asked Questions (FAQ)
Do I need to program a new ignition switch for my 1998-1999 CL?
Only if you replace the entire lock cylinder assembly with new keys. If you are just replacing the much more common failure item—the electrical switch at the back—and reusing your old keys, no programming is required.
Why does my Acura CL stall while I'm driving?
The most likely cause is a faulty electrical ignition switch, a problem so common that Acura issued a safety recall (NHTSA 02V120000). The internal contacts wear out and interrupt power to the engine. You should check if the recall was performed on your car.
Can I use an ignition switch from an automatic CL in my manual CL?
The electrical switch portion is the same for both. However, the complete lock cylinder assembly is different and not interchangeable due to the automatic's shift-interlock mechanism.
What are shear bolts and why are they so difficult to remove?
Shear bolts are security fasteners used to attach the ignition lock assembly to the steering column. They are designed so that the head breaks off when they are tightened at the factory, leaving a smooth, tamper-proof surface. Removal requires special techniques like drilling them out or cutting a slot in them with a Dremel tool.
Technical Specifications
OEM Part Numbers: 35100-SY8-A01 (Manual Trans Assembly) 35100-SY8-A11 (Auto Trans Assembly) 35100-SY8-A12 (Auto Trans Assembly) 35130-S84-A01 (Electrical Switch) 35130-S84-305 (Electrical Switch, Superseded)
The electrical switch has a 7-pin rectangular connector. The full lock assembly is secured by two M8 shear bolts.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Acura CL:
- Critical Safety Recalls for 1998-1999 Acura CL
- Symptoms of a Failing Ignition Switch
- The Most Important Choice: Electrical Switch vs. Full Assembly
- Buying a Used Ignition Switch: What to Look For
- Option 1: Buying a Used Electrical Switch (Recommended)
- Option 2: Buying a Used Full Assembly (Use Caution)
- Immobilizer and Programming Requirements
- Replacement Overview & Difficulty
- Replacing the Electrical Switch Only (DIY Feasible)
- Replacing the Full Lock Cylinder Assembly (Professional Recommended)
- Cost Comparison
- Frequently Asked Questions (FAQ)
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