Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Function Test
If the accelerator pedal is depressed during the test, the test will be aborted.
-- Connect the scan tool.
-- Start the engine and run at idle for at least 15 minutes.
-- Select "Mode 8: Tank Leak Test".
-- Select "Test-ID 01: Tank Leak Test".
-- Check the specified value of the tank leak test at idle.
-- The following will be displayed on the scan tool screen:
| Tank leak test | Specified value | |||||
|---|---|---|---|---|---|---|
|
Test OK | |||||
-- Switch the ignition off.
If the specified result is obtained:
System OK.
If the specified result is not obtained:
-- Repeat the tank leak test, switch the ignition off and start the engine again and let run for 15 minutes at idle.
-- Switch the ignition off.
If the specified result is again not obtained:
-- A leak may be present. Refer to EVAPORATIVE SYSTEM, CHECKING FOR LEAKS .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.