2014 Toyota Highlander Check Engine Light

The diagnostic for a 2014 Toyota Highlander typically costs {{vehicle.real_diagnostic_price_range_usd.min}}–{{vehicle.real_diagnostic_price_range_usd.max}} USD at Larry H. Miller Toyota Murray.

This fee covers a full OBD-II scan with Toyota’s factory tools, freeze-frame review, and targeted testing to find the root cause. We provide up-front pricing and a written estimate, and many diagnostic fees are credited toward the resulting repair when applicable. You can schedule service online and check our service specials for current offers in Murray.

• Includes Toyota Techstream scan and fault-tree testing
• Written estimate before any repair work
• Many fees credited toward the repair when applicable

A standard diagnostic takes about {{service.duration_minutes}} minutes for a 2014 Toyota Highlander.

Time varies with fault complexity; intermittent issues or multiple codes can extend testing. Our Murray facility uses OEM scan data and guided procedures to isolate the cause efficiently and safely. Book a time that fits your day using our online schedule service tool, and review current service specials before you arrive.

• Typical visit: initial scan plus targeted testing
• Additional time if multiple systems set codes
• Same-day appointments subject to availability

It means the Highlander’s OBD-II system detected a fault and stored a code identifying the affected system.

Causes range from minor (a loose gas cap) to serious (misfires or catalytic converter efficiency). A steady light signals a non-urgent fault; a flashing light indicates a severe misfire that can damage the catalytic converter. In Murray, our Toyota-specific scan tools read live data and freeze-frame info to confirm the root cause and prevent unnecessary parts replacement.

• OBD-II code points to system, not always the exact part
• Steady vs. flashing light indicates severity
• Factory scan data improves diagnostic accuracy

Common causes include O2 sensor faults, EVAP leaks (loose gas cap), MAF sensor issues, misfires (ignition), and catalytic converter efficiency codes.

These categories cover the majority of MIL activations on the Highlander and other Toyota SUVs. Utah’s temperature swings can aggravate EVAP leaks and cold starts can highlight ignition issues. We verify the actual cause on your vehicle with isolation testing before recommending repairs, and we provide a written estimate.

• EVAP leak checks include cap seal and smoke testing
• Misfire diagnosis verifies coils, plugs, fuel, and compression
• Sensor faults confirmed with live-data and circuit tests

It’s generally safe to drive short distances with a steady light, but a flashing light means stop driving to avoid catalytic converter damage.

If the light is steady, reduce load and schedule diagnostics soon; monitor for drivability changes. If it’s flashing or you notice rough running, park the SUV and arrange service to prevent costly repairs. In Murray, you can quickly schedule an appointment for dealer-level testing.

• Steady light: drive cautiously and book service
• Flashing light: severe misfire risk—stop driving
• Prolonged misfires can overheat the catalytic converter

Parts stores read codes; dealer technicians diagnose the root cause using Toyota factory data and guided tests.

A code identifies the system, but multiple faults can trigger the same code. Our OEM tools access proprietary Toyota data, perform active tests, and verify repairs with readiness monitors—capabilities generic readers lack. You also receive a written estimate and can review service specials before authorizing work.

• Factory Techstream access and active tests
• Isolation testing to confirm the failed component
• Written estimate; no parts swapping guesswork

For your 2014 Toyota Highlander, we start with an initial OBD-II scan using Toyota Techstream to capture codes and freeze-frame data. A technician then reviews live sensor values and verifies the concern. Next comes isolation testing—such as smoke testing for EVAP leaks, ignition coil stress tests, or circuit integrity checks—to confirm the root cause before any repair. You receive a written estimate and we only proceed with your approval. {{rooftop.warranty_terms.diagnostic}} If you prefer to plan ahead, you can review current service specials and schedule service online for our Murray location.

We serve the Salt Lake Valley and Greater Salt Lake City metro area—including Murray, Salt Lake City, Sandy, West Jordan, South Jordan, Millcreek, Holladay, and Taylorsville—with dealer-level diagnostics tailored to your 2014 Toyota Highlander. Factory scan tools and guided procedures outperform generic OBD-II readers by accessing Toyota-specific data, running active tests, and validating repair readiness. Local temperature swings can reveal EVAP leaks, and cold starts may expose ignition or air-fuel issues; our team accounts for these Utah conditions during diagnosis. Visit us at 5650 South State Street, Murray, UT 84107 to get clear answers and a written estimate, or schedule your appointment online.

On the 2014 Toyota Highlander, frequent MIL categories include P0171/P0174 (system too lean), P0300–P0306 (misfires), P0420 (catalyst efficiency), P0440–P0456 (EVAP leaks), and P0101 (MAF performance). Lean or MAF issues can reduce fuel economy; ignoring misfires can overheat and damage the catalytic converter. EVAP leaks often stem from a loose or worn gas cap but may also indicate a small system leak best confirmed with smoke testing. Catalyst efficiency faults require accurate upstream/downstream O2 analysis before any major repair. Bring your 2014 Toyota Highlander to Larry H. Miller Toyota Murray in Murray for an accurate diagnosis — schedule service.