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.
Diagnostic Check
This test determines if the transmission or its input or output connections or sensors are failing.
- Connect the Tech 2: GO THROUGH TECH 2 OBD II CONNECTION .
- Turn on the ignition but not the engine.
- Push "FO" on Tech 2 to see the DIAGNOSTIC TROUBLE CODE (DTC) :
- Do you have a DTC?
YES: write down all code numbers and do the DTC CHECK
NO: the DTC can not help you finding the problem.
- GO THROUGH "CHECK TRANS" Check
- If it is flashing and the flash is 0.2 seconds ON and 0.2 seconds OFF, this means that you should have a DTC stored. Please recheck GO TO DIAGNOSTIC CHECK and if you find the same problem, replace the Powertrain Control Module (PCM).
Use the Manual With the Right Hardware
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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.
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