1997-1998 Montero Sport Column Switch: Solving Signal, Wiper & Light Issues

Symptoms of a Failing Column Switch

When the column switch in a 1997-1998 Montero Sport begins to fail, the symptoms are almost always electrical. The internal contacts wear out or get corroded over time, leading to intermittent or total failure of the systems it controls. Here are the most common signs:

• Turn Signal Problems: This is often the first sign of trouble. You might experience turn signals that don't turn on, work only sometimes, or fail to cancel after a turn. In some cases, the problem might be the flasher relay located in the driver's side fuse block, but if that and the bulbs are good, the switch is the next likely culprit.
• Headlight and High Beam Issues: You may find your headlights flicker, won't turn on at all, or you're unable to switch between high and low beams. This points to worn contacts within the headlight portion of the switch assembly.
• Windshield Wiper Malfunctions: The wipers may not respond, operate intermittently, get stuck mid-swipe, or only work on certain speed settings. This indicates a failure in the wiper control part of the switch.
• Cruise Control Failure: If your Montero Sport is equipped with cruise control, a failing switch can prevent the system from engaging or disengaging. While other issues like sensors or modules can cause cruise control problems, the switch on the stalk is a common failure point.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

As of mid-2024, there are no specific recalls or TSBs issued by the National Highway Traffic Safety Administration (NHTSA) for the column switch assembly on the 1997-1998 Mitsubishi Montero Sport. However, a recall was issued for some 1998 models for a crankshaft pulley bolt that could loosen and cause a loss of power steering assist, which is unrelated to the column switch but important for owners to be aware of. Any electrical issues with lights and wipers are most likely due to age-related wear on the switch itself, fuses, or wiring, rather than a specific manufacturing defect.

Buying a Used 1997-1998 Montero Sport Column Switch

Purchasing a used OEM column switch is often a smart choice, as it can provide the same fit and quality as a new part for a fraction of the price. However, careful verification is essential to get the correct part and avoid frustration.

1. Verify Compatibility: Cruise Control is the Key

The single most important factor when buying a used column switch for this vehicle is whether your Montero Sport has cruise control. The switches are different and are not interchangeable.

• Vehicles WITHOUT Cruise Control: The switch assembly will have a plain end on the turn signal stalk.
• Vehicles WITH Cruise Control: The assembly will have a separate stalk or a button on the end of the main stalk to activate the cruise control system.

How to Check: Look at your existing switch. If it has a button on the end of the stalk for cruise control, you must buy a replacement that also has this feature. If it's a blank cap, you need the non-cruise version. Ordering the wrong one will result in either a dead button or a missing feature.

2. Check for Intermittent Wipers

The initial buyer warnings indicate that these switches are for models with intermittent wipers. While most Montero Sports of this era had this feature, it's wise to confirm your vehicle's wiper stalk has the intermittent delay settings. The switch's internal mechanism is different for models without this option.

3. Physical Inspection of the Used Part

When you receive the used part, inspect it carefully before installation:

• Check the Stalks: Move the stalks through all their functions (signals, high beams, wiper speeds). They should move smoothly and click into place without excessive looseness or binding.
• Inspect Electrical Connectors: Look at the plastic connectors and the metal pins inside. Ensure there is no corrosion, bent pins, or cracked plastic housings.
• Look for Cracks: Check the plastic housing for any cracks or signs of damage from a previous accident or improper removal.
• Verify Markings: Make sure the white or yellow markings for headlights and wipers are clear and not worn off, which is a common issue on high-mileage parts.

4. Why Choose Used OEM over New Aftermarket?

For a part like a column switch, a good-condition used OEM unit is often superior to a cheap, new aftermarket one. The feel and durability of the switch contacts in OEM parts are typically better. Aftermarket switches can sometimes have a flimsy feel, fail prematurely, or have slight differences in fitment that complicate installation.

Cost Comparison

Replacement Overview & Difficulty

Replacing the column switch is a moderately difficult job that a patient DIYer can handle. The main challenge involves safely removing the steering wheel and airbag.

• Difficulty Rating: 3 out of 5
• Estimated Time: 1.5 - 2.5 hours
• Tools Required: Socket set, screwdriver set, steering wheel puller, torque wrench.

Key Replacement Steps:

1. Disconnect the Negative Battery Terminal: This is a critical safety step. Wait at least 15 minutes for the airbag system's backup power to discharge before proceeding.
2. Remove the Airbag Module: There are typically bolts or clips on the back or sides of the steering wheel that release the airbag. Handle it gently and place it face-up in a safe location.
3. Remove the Steering Wheel: After unplugging the airbag and horn connectors, remove the large center nut. Mark the position of the steering wheel relative to the column shaft before using a steering wheel puller to remove it.
4. Remove Steering Column Covers: Unscrew the plastic shrouds around the column to expose the switch assembly.
5. Unplug and Replace the Switch: Disconnect the electrical harnesses from the old switch. It is typically held on by a clamp or a few screws. Install the new switch, ensuring all connectors are securely plugged in.
6. Reassembly: Reinstall the column covers, steering wheel (aligning your marks), and airbag. Torque the steering wheel nut to the manufacturer's specification. Reconnect the battery and test all functions.

Frequently Asked Questions (FAQ)