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.
Output State Control (OSC) Mode: Procedure: Notes
The OSC has 2 modes of operation for the transmission:
- Service Bay Mode
- Drive Mode
In order to operate the OSC in the drive mode, no diagnostic trouble codes (DTCs) related to the transmission range (TR) sensor, turbine shaft speed (TSS) sensor, output shaft speed (OSS) sensor or the SSPC-A (coast clutch), SSPC-B (overdrive clutch), SSPC-C (intermediate clutch), SSPC-D (direct clutch), SSPC-E (low reverse) and PC-A (line pressure) solenoids may be present. Carry out the KOEO on-demand self test and retrieve continuous codes to identify any codes that are present.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.