🎯 LICENSE TESTS
130 diagnostic challenges.
Vibration While Driving
2019 Honda CR-V 1.5T
"Customer says the steering wheel vibrates at 60+ mph. Started a few weeks ago."
Dead Battery
2017 Ford F-150 5.0L
"Battery is dead every morning. Customer has to jump-start the truck every day."
Squealing Brakes
2016 Nissan Altima 2.5L
"Loud squealing noise when braking. Gets worse when brakes are cold."
Oil Change Light On
2020 Chevrolet Silverado 5.3L
"Oil change light came on. Customer wants to know if oil is okay or needs to be changed."
Slow Power Window
2015 Toyota Camry 2.5L
"Driver window moves slowly going up. Sometimes stops halfway."
Flickering Headlights
2014 Ford Focus 2.0L
"Headlights flicker randomly. Worse when sitting at idle."
Belt Squealing on Startup
2019 Nissan Rogue 2.5L
"Loud squealing noise when starting engine. Goes away after a few seconds."
Door Lock Inoperative
2017 Kia Sorento 3.3L
"Driver door won't lock or unlock with power locks. Other doors work."
TPMS Warning Light
2020 Honda Pilot 3.5L
"Tire pressure warning light is on. Customer says tires look fine."
Vehicle Pulls to One Side
2018 Subaru Impreza 2.0L
"Car pulls to the right when driving straight. Have to hold steering wheel to left."
Seatbelt Won't Retract
2017 Honda CR-V 1.5T
"Driver seatbelt won't retract. Have to manually stuff it back."
Water Inside Tail Light
2019 Toyota RAV4 2.5L
"Customer notices water inside the right rear tail light assembly."
Windshield Wipers Skipping
2018 Chevrolet Equinox 1.5T
"Wipers chatter and skip across the windshield. Bad visibility in rain."
Key Fob Range Reduced
2020 Ford Explorer 2.3T
"Key fob only works when standing right next to the car. Used to work from across parking lot."
Cruise Control Won't Engage
2017 Toyota Tacoma 3.5L
"Cruise control doesn't work at all. No indicator light on dash when pressing set."
Backup Camera Shows Black Screen
2019 Honda Pilot 3.5L
"Backup camera just shows black screen when in reverse. Used to work."
Weak HVAC Airflow
2019 Honda CR-V 1.5T
"A/C and heat barely blow air even on high. Used to be stronger."
One Headlight Dim
2018 Nissan Rogue 2.5L
"Driver side headlight seems much dimmer than passenger side."
Horn Sounds Weak
2017 Subaru Outback 2.5L
"Horn makes a pathetic squeaking sound instead of a proper honk."
Whining Noise from Fuel Tank
2020 Kia Sportage 2.4L
"Hears a whining noise from rear of vehicle when key is on. Never noticed it before."
Check Engine Light After Fueling
2020 Hyundai Sonata 2.5L
"Check engine light comes on after filling gas tank. Goes off after few days."
No Sound from One Speaker
2018 Toyota Camry 2.5L
"No sound from driver door speaker. Other speakers work."
Sunroof Won't Close
2019 Honda Accord 2.0T
"Sunroof stopped moving. Stuck in tilted open position."
Rough Idle After Service
2018 Chevrolet Silverado 5.3L
"Engine idles rough since new battery installed. Runs fine otherwise."
License C Required
200 XP needed
No Crank Condition
2016 Ford F-150 3.5L EcoBoost
"Nothing happens when I turn the key. Dash lights work fine."
License C Required
200 XP needed
Charging System Warning Light
2019 Chevrolet Silverado 5.3L
"Battery light came on while driving. Car runs okay for now."
License C Required
200 XP needed
Crank No Start
2015 Honda Accord 2.4L
"Customer says the car cranks but won't start. It was running fine yesterday. No warning lights were on before this happened."
License C Required
200 XP needed
Engine Turns Over But Won't Start
2018 Toyota Camry 2.5L
"Engine turns over but won't fire. Customer says the fuel gauge shows 1/4 tank."
License C Required
200 XP needed
Dead Battery Overnight
2017 Jeep Grand Cherokee 3.6L
"Battery dies overnight. Had it tested at parts store and they said it's good. Been happening for 2 weeks."
License C Required
200 XP needed
Misfire Under Load Only
2016 Ford Mustang 5.0L
"Check engine light flashing when I accelerate hard onto the highway. Car shakes. Fine at idle and low speeds."
License C Required
200 XP needed
A/C Blows Warm Intermittently
2019 Honda Civic 1.5T
"A/C will be ice cold, then just starts blowing warm. Sometimes it comes back, sometimes I have to shut the car off and restart it."
License C Required
200 XP needed
Engine Overheating at Highway Speed
2015 Chevrolet Cruze 1.4T
"Temp gauge goes into the red on the highway after about 20 minutes. In city driving it stays normal. Coolant level is good."
License C Required
200 XP needed
Rough Idle
2012 BMW 328i 2.0T
"Engine idles rough and sometimes stalls at stop lights. Check engine light is on."
License C Required
200 XP needed
Check Engine Light On
2015 Subaru Outback 2.5L
"Check engine light is on. Car seems to run fine otherwise."
License C Required
200 XP needed
Coolant Puddle Under Car
2014 Jeep Grand Cherokee 3.6L
"Customer notices coolant on the ground after parking. Low coolant light comes on periodically."
License C Required
200 XP needed
Battery Light Flickers
2016 Dodge Charger 3.6L
"Headlights flicker at idle. Radio makes a whining noise that changes with engine speed."
License C Required
200 XP needed
Slow Crank
2013 GMC Sierra 5.3L
"Engine cranks slowly, especially in the morning. Battery was just replaced."
License C Required
200 XP needed
A/C Not Cooling
2018 Hyundai Elantra 2.0L
"A/C blows air but it's not cold. No warning lights."
License C Required
200 XP needed
Inaccurate Fuel Gauge
2013 Chevrolet Silverado 5.3L
"Fuel gauge shows full for a long time, then drops quickly to empty."
License C Required
200 XP needed
Exhaust Drone at Cruise
2015 Ford Mustang 5.0L
"Annoying droning sound at highway speeds. Aftermarket exhaust installed."
License C Required
200 XP needed
Knocking Noise Under Load
2016 Kia Optima 2.4L
"Knocking sound from engine when accelerating. Worse going uphill."
License C Required
200 XP needed
Power Steering Whine
2014 Chevrolet Impala 3.6L
"Whining noise when turning the steering wheel. Worse when cold."
License C Required
200 XP needed
A/C Compressor Grinding Noise
2018 Nissan Altima 2.5L
"Grinding noise from engine area when A/C is on. Goes away when A/C is off."
License C Required
200 XP needed
Surging Idle After Start
2015 Ford Escape 2.0T
"Engine surges up and down at idle after cold start. Settles down after warm up."
License C Required
200 XP needed
Multiple U-Codes After Jump Start
2019 Jeep Cherokee 2.4L
"Various warning lights on after getting a jump start. Multiple U-codes stored."
License C Required
200 XP needed
Heater Blows Cold Air
2017 Chevrolet Cruze 1.4T
"Heater only blows lukewarm air even when engine is fully warm."
License C Required
200 XP needed
Check Engine Light After Cold Start
2017 Mazda 3 2.5L
"Check engine light. Code reader shows P0135."
License C Required
200 XP needed
Humming Noise from Wheel
2018 Hyundai Tucson 2.0L
"Humming noise from front that gets louder with speed. Changes with turning."
License C Required
200 XP needed
Check Engine Light - Emissions
2016 Toyota Corolla 1.8L
"Check engine light with P0420. Failed state emissions test."
License C Required
200 XP needed
Single Click, No Crank
2019 Ford Ranger 2.3T
"Turn the key and hear one loud click. Engine doesn't turn over."
License C Required
200 XP needed
Coolant Overflow When Hot
2016 Ford Focus 2.0L
"Coolant bubbles out of reservoir when engine gets hot. No overheating on gauge."
License C Required
200 XP needed
A/C Compressor Won't Engage
2017 Nissan Murano 3.5L
"A/C blows warm air. Hear nothing when pressing A/C button."
License B Required
500 XP needed
ABS Light On
2017 Ford Escape 2.0T
"ABS and traction control warning lights are on. Brakes seem to work normally."
License B Required
500 XP needed
Gas Cap Warning
2018 Chevrolet Malibu 1.5T
"Check engine light is on. Customer can smell fuel fumes occasionally."
License B Required
500 XP needed
Check Engine Light - Misfire
2019 Honda Civic 1.5T
"Engine misfires and hesitates on acceleration. Check engine light flashing."
License B Required
500 XP needed
Airbag Light On
2014 Toyota Tacoma 4.0L
"Airbag warning light is on. Horn also doesn't work."
License B Required
500 XP needed
Check Engine Light
2016 Chevrolet Cruze 1.4T
"Check engine light on. Car runs fine. No performance issues noticed."
License B Required
500 XP needed
ABS Module Communication Loss
2018 Mazda CX-9 2.5T
"ABS and traction control lights on. Scan tool shows no communication with ABS module."
License B Required
500 XP needed
Harsh 2-3 Shift
2016 Ford F-150 3.5L EcoBoost
"Hard shift between 2nd and 3rd gear. Feels like it slams into gear."
License B Required
500 XP needed
TPMS Sensor Not Reporting
2019 Subaru Forester 2.5L
"TPMS light stays on. Shows one tire as dashes instead of pressure."
License B Required
500 XP needed
EVAP Small Leak Code
2020 Toyota Camry 2.5L
"Check engine light on. Code says small EVAP leak."
License B Required
500 XP needed
One Door Won't Lock/Unlock Remotely
2018 Volkswagen Passat 2.0T
"Rear right door doesn't respond to remote or driver controls. Works manually."
License B Required
500 XP needed
Brake Pedal Pulsates When Stopping
2019 Chevrolet Traverse 3.6L
"Brake pedal pulses up and down when braking from highway speed."
License B Required
500 XP needed
Intermittent Stall
2011 Chrysler 300 3.6L
"Engine dies randomly while driving. Restarts after a few minutes. No pattern to when it happens."
License B Required
500 XP needed
Transmission Slipping
2015 Nissan Altima CVT
"Transmission feels like it's slipping. Engine revs up but car doesn't accelerate properly."
License B Required
500 XP needed
Random Multiple Misfires
2016 Mazda CX-5 2.5L
"Check engine light flashing intermittently. Engine feels rough on acceleration."
License B Required
500 XP needed
Instrument Cluster Flickering
2017 Dodge Journey 3.6L
"Gauges flicker and sometimes go blank momentarily while driving."
License B Required
500 XP needed
Transmission Slipping at Highway Speed
2017 Jeep Grand Cherokee 3.6L
"Transmission slips or flares when shifting into overdrive on highway."
License B Required
500 XP needed
Intermittent Dashboard Warnings
2019 Kia Sorento 3.3L
"Random warning messages appear then disappear. "Check [system]" messages."
License A Required
1000 XP needed
Multiple Warning Lights - No Communication
2016 Chevrolet Malibu 1.5T
"ABS light, traction light, and stabilitrak light all came on at once. Brakes work but no ABS. Shop said their scanner can't talk to the car."
License A Required
1000 XP needed
No Communication With Scan Tool
2018 Ford F-150 2.7L EcoBoost
"Car started fine but every warning light on dash is lit. Shop says their scan tool sees nothing."
License A Required
1000 XP needed
Intermittent Module Faults
2017 RAM 1500 5.7L HEMI
"Random warning lights come and go. Sometimes ABS, sometimes airbag, sometimes transmission. Sometimes all clear for days."
License A Required
1000 XP needed
Multiple System Faults After Tow
2019 Volkswagen Jetta 1.4T
"Engine runs fine but no power windows, seats, or door locks. Dealer quoted $5000 to replace everything but couldn't find anything wrong with the trans itself."
License A Required
1000 XP needed
Instrument Cluster Goes Dark Randomly
2015 Dodge Charger 3.6L
"Whole instrument cluster just goes dark sometimes while driving. Might be 5 seconds, might be 2 minutes. Car keeps running."
License A Required
1000 XP needed
Transmission Limp Mode - CAN Issue
2016 Chrysler 300 3.6L
"Transmission stuck in one gear. Took it to a transmission shop, they want to rebuild it for $3500 but couldn't find anything wrong with the trans itself."
License A Required
1000 XP needed
Electric Power Steering Failure
2017 Hyundai Elantra 2.0L
"Steering got really hard suddenly on the highway. Power steering light on. Dealer quoted $1800 for steering rack."
License A Required
1000 XP needed
Some Features Not Working
2016 Audi A4 2.0T
"Multiple warning lights on dash. Some features work, others don't. Scan tool connects to some modules but not others."
License A Required
1000 XP needed
System Glitches After Update
2020 Ram 1500 5.7L
"Intermittent transmission shift concerns. Dealer said software update available but never completed."
License A Required
1000 XP needed
Driver Assist Unavailable
2022 Honda Accord 2.0T
"Lane departure warning and adaptive cruise not working after windshield replacement."
License A Required
1000 XP needed
CAN High to Low Short
2018 Chevrolet Colorado 3.6L
"Truck went completely dead. No communication with any module."
License A Required
1000 XP needed
CAN Bus Bias Voltage Incorrect
2019 GMC Acadia 3.6L
"Random warning lights, erratic gauges, intermittent starting issues."
License A Required
1000 XP needed
CAN Gateway Not Routing Messages
2020 Volkswagen Tiguan 2.0T
"Scan tool sees powertrain modules but nothing else. Body systems work but no scan data."
License A Required
1000 XP needed
Modules Won't Enter Sleep Mode
2018 Ford Mustang 5.0L
"Battery dies within a day of sitting. Current draw stays high."
License A Required
1000 XP needed
Power Seat Not Responding
2019 Audi Q5 2.0T
"Driver power seat completely dead. No movement in any direction."
License A Required
1000 XP needed
Interior Electronics Not Working
2016 Buick Enclave 3.6L
"Interior lights stay on, door ajar message with all doors closed."
License A Required
1000 XP needed
Random Misfire
2018 BMW X3 2.0T
"Occasional rough running. Multiple cylinder misfire codes that come and go."
License A Required
1000 XP needed
Chassis System Fault
2019 BMW 540i 3.0T
"DSC malfunction, steering assist reduced, multiple warning lights."
License A Required
1000 XP needed
Battery Dies After Few Days
2018 Jeep Wrangler 3.6L
"Battery dies every few days. Already replaced battery."
License A Required
1000 XP needed
Random System Errors
2017 Dodge Charger 5.7L
"Intermittent warning lights. Scan tool connects sometimes, other times not."
License A Required
1000 XP needed
Intermittent System Malfunctions
2019 Ford F-250 6.7L Diesel
"Gauges flicker, warning lights randomly illuminate. Getting worse."
License A Required
1000 XP needed
Electrical Noise Issues
2018 Audi A4 2.0T
"Communication errors when using certain equipment nearby. Fine otherwise."
License S Required
1800 XP needed
Hybrid System Disabled
2018 Toyota Prius 1.8L Hybrid
"Hybrid system warning light on. Car goes into limp mode occasionally. Reduced power."
License S Required
1800 XP needed
Diesel Performance Issues
2017 Ford F-250 6.7L Diesel
"Check engine light on. Message says "Exhaust Filter XX% Full - Driving Needed". Truck feels sluggish."
License S Required
1800 XP needed
EV Won't Start
2021 Tesla Model 3 Long Range
"Car won't drive. Screen shows "High Voltage System Fault - Service Required"."
License S Required
1800 XP needed
Intermittent Warning Lights
2019 Mercedes-Benz C300 2.0T
"Random warning lights that come and go. Sometimes gauge cluster flickers. Scan tool sometimes loses connection."
License S Required
1800 XP needed
Reduced Fuel Economy
2017 Toyota Prius 1.8L Hybrid
"Hybrid system warning light. Reduced fuel economy. Battery seems weak."
License S Required
1800 XP needed
DEF System Warning
2019 Chevrolet Silverado 3.0L Diesel
"DEF warning light. Message says "Service Exhaust Fluid System""
License S Required
1800 XP needed
Charging Port Issue
2022 Ford Mustang Mach-E
"Car won't charge at home or public chargers. Charging icon shows error."
License S Required
1800 XP needed
Engine Running Rough
2018 BMW 530i 2.0T
"Rough idle with occasional misfire. No consistent pattern to which cylinder."
License S Required
1800 XP needed
Multiple System Failures
2016 Cadillac CTS 2.0T
"Randomly: radio cuts out, gauges go crazy, HVAC stops working. Different each time."
License S Required
1800 XP needed
PHEV Charging Issue
2020 Toyota RAV4 Prime
"Plug-in hybrid battery only charges to 80%. Used to charge to 100%."
License S Required
1800 XP needed
Cruise Control Not Working After Windshield
2021 Honda Accord 2.0T
"ACC doesn't work after front bumper replacement from collision."
License S Required
1800 XP needed
EV Range Reduced
2021 Chevrolet Bolt EV
"Battery temperature warning. Car limiting power. Coolant low message."
License S Required
1800 XP needed
Diesel Warning Light
2019 RAM 1500 3.0L Diesel
"DPF light on. Message to drive at highway speed. Regen won't complete."
License S Required
1800 XP needed
Multiple Warning Lights After Jump
2020 Mercedes-Benz E450 3.0T
"Multiple systems inoperative. Cluster shows errors for several systems."
License S Required
1800 XP needed
Suspension Warning Message
2022 BMW X5
"Air suspension dropped. "Chassis Function Restricted". Cannot communicate with Vertical Dynamics Module (VDM)."
License iA Required
3000 XP needed
Vehicle Non-Responsive
2022 Ford F-150
"Vehicle towed in. No crank, no start. Instrument cluster is dead except for airbag light. Wipers run constantly when key is on."
License iA Required
3000 XP needed
Hybrid System Warning
2019 Toyota Prius
"Red triangle warning light. Car will not go into "Ready" mode. Customer reports driving through deep puddle yesterday."
License iA Required
3000 XP needed
Recurring Dead Battery
2021 Chevrolet Tahoe
"Battery dies only if parked for more than 2 days. Battery and alternator already replaced by another shop."
License iA Required
3000 XP needed
Audio System Malfunction
2018 Audi Q7
"No sound from radio, navigation, or phone. MMI screen works but freezes occasionally."
License iA Required
3000 XP needed
Rough Idle on Cold Start
2017 VW GTI
"Rough idle on cold start only. Check engine light flashes sometimes. Runs perfect after 2 minutes."
License iA Required
3000 XP needed
Battery Warning Light
2020 BMW 330i
"Battery warning light on. Voltage stays at 13.2V constantly. Start/Stop system disabled."
License iA Required
3000 XP needed
Check Engine Light (EVAP)
2016 Jeep Grand Cherokee
"Check engine light on. P0456 (Small Leak). Gas cap already replaced."
License iA Required
3000 XP needed
Driver Assist System Warning
2023 Honda CR-V
"Lane Keep Assist (LKAS) amber warning. "System Problem" message. Windshield was replaced yesterday."
License iA Required
3000 XP needed
Instrument Cluster Malfunction
2021 Dodge Charger
"Christmas tree dash. ABS, Airbag, Check Engine lights on. Speedometer fluctuates."
License iA Required
3000 XP needed
Ghost In The Machine
2023 Tesla Model 3
"Customer says car loses 15-20 miles of range overnight while parked in garage. Only happens 2-3 times per week. No apps are running."
License iA Required
3000 XP needed
The Disappearing Misfire
2019 Ford F-150 5.0L
"Misfire at exactly 2100-2300 RPM under moderate load. Goes away above or below that range. No codes stored. Runs perfect otherwise."
License iA Required
3000 XP needed
The Friday 5PM Special
2021 Chevrolet Tahoe
"Every warning light on dash. Transmission stuck in gear. Stabilitrak disabled. Power steering heavy. Started after oil change at quick lube."
License iA Required
3000 XP needed
The Hot Soak Stall
2018 Honda CR-V 1.5T
"Engine stalls after sitting in hot parking lot for 30-60 minutes. Restarts immediately but runs rough for 10 seconds. Never happens on cold days. Dealer couldn't duplicate."
License iA Required
3000 XP needed
The Scope Master Challenge
2020 BMW 330i xDrive
"Random power loss while driving. No warning lights. No codes. Happens once every 1-2 weeks. Usually in cold weather. Car "bucks" then recovers."
License iA Required
3000 XP needed
The Mystery Voltage
2022 Ford Bronco 2.7L
"Battery dies every 3-4 days. New battery installed. Alternator tests good. Customer claims nothing is left on. Parasitic draw test shows 50mA - normal. No aftermarket accessories."
License iA Required
3000 XP needed
The CAN Bus Whodunit
2023 Kia Telluride
"Infotainment screen freezes for 2-3 seconds every few minutes. Backup camera lags. Sometimes radio changes stations by itself. Dealer replaced head unit twice - no fix."
License iA Required
3000 XP needed
The Double Fault
2020 Toyota Tacoma 3.5L
"Check engine light on. Runs rough at idle. Seems like two different problems happening at once. P0300, P0420. "Fixed" at another shop but returned in 1 week."
License iA Required
3000 XP needed
The Temperature Demon
2021 Ram 1500 5.7L eTorque
"Engine dies randomly when ambient temp is 95°F+. Restart immediately works. MIL never illuminates. No codes stored. Only happens in summer. Dealer can't replicate in AC shop."
License iA Required
3000 XP needed
The Wiring Nightmare
2019 Jeep Grand Cherokee
"Left headlight flickers. Right turn signal doesn't work. Windshield wipers run slow. All started after hitting a pothole. Body shop found nothing."
License iA Required
3000 XP needed
The Software Ghost
2022 Hyundai Ioniq 5
"Random features stop working for days then start again. Sometimes no regen braking. Sometimes no seat heaters. Sometimes no garage door opener. Never the same thing twice. OTA update made it worse."
License iA Required
3000 XP needed
The Phantom Noise
2023 Genesis GV80
"Clicking/ticking noise from front end. Only happens between 25-35 MPH. Completely silent above or below that speed. More noticeable on smooth roads. No vibration felt."
License iA Required
3000 XP needed
The Logic Puzzle
2020 Audi e-tron
"Vehicle limits charging to 50kW even at 150kW charger. Battery shows 40% SOC. Battery temp is 75°F. No warning messages. Worked fine 2 weeks ago."
License iA Required
3000 XP needed
The Invisible Enemy
2021 Mercedes-Benz E450 4MATIC
"Terrible fuel economy. Down from 28 MPG to 18 MPG over 3 months. No warning lights. No codes. No driveability issues. Car runs perfectly."
License iA Required
3000 XP needed
The Comeback King
2019 Subaru Outback 2.5L
"Check engine light on. P0420. Customer says: "This is the THIRD catalytic converter in 2 years. Previous shop keeps replacing cats. They're not honoring the warranty because they think I'm doing something wrong.""