2019-2020 Toyota Supra Repair Manual

2019–2020 Toyota Supra (J29/DB) OEM Repair Manual with Wiring Diagrams – PDF Download

Get the complete original OEM workshop service and repair manual for the 2019–2020 Toyota Supra↗, (J29/DB, fifth-generation), including comprehensive electrical wiring diagrams, in a fully indexed and user-friendly PDF format.

This factory-issued manual delivers the same expert-level information that Toyota dealer technicians↗, use to diagnose and repair the Supra, ensuring you have access to professional-grade procedures and diagrams.

🔧 Key Features:

• ✅ Full mechanical and electrical system coverage
• ✅ Includes complete wiring diagrams for all systems
• ✅ Engine, transmission, drivetrain, suspension, brakes, HVAC & more
• ✅ Step-by-step repair procedures with diagrams
• ✅ Dealer-approved troubleshooting and diagnostics
• ✅ Easy-to-use, searchable, and printable PDF format

⚙️ Vehicle Coverage:

• Make: Toyota
• Model: Supra (J29/DB)
• Years: 2019, 2020
• Generation: Fifth

💡 Why This Manual?

• ✔ Official OEM content – no third-party shortcuts
• ✔ Used by certified Toyota dealership technicians
• ✔ Ideal for both DIY repairs and professional service
• ✔ One-time purchase –yours to keep it forever

Delivery: Instant digital PDF download
Compatible With: Windows, macOS, iOS, Android

🛠️ Maintain and repair your Toyota Supra with confidence.

📥 Download the official OEM workshop manual now and take control of your Supra’s performance and reliability!

The 2019-2020 Toyota Supra (A90) is a performance-oriented sports car developed in collaboration with BMW. It shares its platform, engine, and many components with the BMW Z4 M40i ↗, while maintaining Toyota’s unique tuning and design. Below is a detailed analysis of its common issues, maintenance schedule, pros & cons, and key competitors.

🔧 Common Issues with the 2019-2020 Toyota Supra

Despite being a well-built sports car, the A90 Supra has some reported reliability concerns, particularly due to its BMW-sourced components.

1. Engine and Turbocharger Oil Leaks

• Issue: The B58 turbocharged inline-6 engine is known for oil leaks, often from the valve cover gasket or oil pan gasket.
• Symptoms: Burning oil smell, visible leaks under the car, or low oil levels.
• Solution: Regular oil level checks and replacing the gaskets/seals as needed.

2. Cooling System Weakness

• Issue: The plastic coolant expansion tank is prone to cracks and leaks under high temperatures and spirited driving.
• Symptoms: Overheating, low coolant warning light, coolant puddles under the car.
• Solution: Upgrade to an aluminum coolant expansion tank if tracking the car.

3. ECU Tuning Issues (Modified Vehicles)

• Issue: Many Supra owners modify their cars, which can lead to ECU failure or limp mode if not tuned correctly.
• Symptoms: Check engine light, reduced power mode, engine misfires.
• Solution: Use a reputable tuner and keep ECU software up to date.

4. BMW ZF 8-Speed Transmission Problems

• Issue: The ZF 8HP automatic transmission ↗ is reliable but can suffer from delayed shifts or jerky engagement over time.
• Symptoms: Harsh gear changes, hesitation when downshifting.
• Solution: Change transmission fluid every 50,000 miles instead of BMW’s “lifetime” recommendation.

5. Steering and Suspension Rattle

• Issue: Some owners report a rattling noise from the front suspension, particularly at low speeds over bumps.
• Symptoms: Clunking noise, uneven tire wear, poor steering feedback.
• Solution: Inspect and replace front control arm bushings or sway bar end links.

6. Interior & Infotainment Glitches

• Issue: The iDrive-based infotainment system (borrowed from BMW) can experience freezing or slow response.
• Symptoms: Unresponsive touchscreen, Bluetooth connectivity issues.
• Solution: Software update or factory reset.

7. Limited Rear Visibility

• Issue: The sloping roofline and small rear window create blind spots, making parking and lane changes difficult.
• Solution: Use blind-spot monitoring and aftermarket wide-angle mirrors. Read The Society of Automotive Engineers (SAE) published paper in 1995 suggesting how outside mirrors could be adjusted to eliminate blind spots ↗.

🛠️ Maintenance Schedule for 2019-2020 Toyota Supra

Regular maintenance is crucial for performance and longevity.

⚡ Performance Specs

✅ Pros & ❌ Cons of the 2019-2020 Toyota Supra

✅ Pros

✔ Powerful & Smooth B58 Engine – One of the best turbocharged inline-6 engines on the market.
✔ Fast & Fun to Drive – 0-60 mph in under 4 seconds.
✔ Excellent Handling – Adaptive suspension, RWD, and 50/50 weight distribution.
✔ Strong Aftermarket Support – Easy to modify with ECU tunes, turbo upgrades, and exhaust mods.
✔ Fuel-Efficient for a Sports Car – Achieves 31 mpg highway.

❌ Cons

❌ Shared BMW Parts – Expensive repairs & maintenance.
❌ Poor Rear Visibility – Small rear window, thick pillars.
❌ Infotainment System Can Lag – BMW iDrive system isn’t as reliable as Toyota’s systems.
❌ No Manual Transmission (2019-2020 Models) – Later models (2023+) added a manual.
❌ Limited Cargo Space – Only 10.2 cu ft in the trunk.

🏆 6 Competitors to the 2019-2020 Toyota Supra

Best For:
✔ Drivers who want a fast, modern sports car.
✔ Enthusiasts who plan to modify & tune their cars.
✔ Owners who don’t mind BMW-style maintenance costs.

Not Ideal For:
❌ Drivers who want manual transmission (only available in 2023+ models).
❌ Those looking for Toyota-level long-term reliability.
❌ People who need cargo space & daily practicality.

📌 Final Verdict: Is the 2019-2020 Toyota Supra Worth It?

The 2019-2020 Toyota Supra is one of the best performance sports cars for enthusiasts looking for speed, handling, and a tunable platform. While it does suffer from BMW-based reliability concerns, it is still an exciting car that offers supercar-like performance for a reasonable price.

This list includes key diagnostic trouble codes (DTCs) reported in the Toyota GR Supra A90 ↗ (BMW-based) platform. Covers engine, transmission, ABS/DSC, SRS airbag, and body systems. Compatible with Toyota Techstream ↗ and BMW ISTA+ ↗  scanners.

⚙️ Engine Control Module (ECM)

🔁 Transmission Control Module (TCM)

🛑 ABS / DSC (Stability Control)

🎈 SRS Airbag System

🛋️ Body Control & Comfort Systems

📡 CAN Communication / Gateway