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.
Time Lag Test: Inspection
- Perform the test at normal operation CVTF temperature of 60 - 80Β°C (140 - 176Β°F).
- Be sure to allow one minute or more interval between tests.
- Make three measurements and take the average value.
- Apply the electronic parking brake.
- Start the engine. Check the idle speed. (A/C OFF)
- Shift the select lever from "N" to "D" range. Using a stop watch, measure the time elapsed from shifting the lever until the shock is felt.
Time lag standard:Β
1.2 seconds or lessΒ
If "N" β "D" time lag is longer than specified:
- Secondary pressure (line pressure) is too low.
- Forward clutch worn
- Piston malfunction
- Control valve body malfunction
- Learning incomplete
- In the same manner, measure the time lag when shifting "N" β "R" range.
Time lag standard:Β
1.5 seconds or lessΒ
If "N" β "R" time lag is longer than specified:
- Secondary pressure (line pressure) is too low.
- Reverse brake worn
- Piston malfunction
- Control valve body malfunction
- Learning incomplete
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ 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.
