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) Procedures: Notes
Retrieve the continuous codes, carry out a KOEO and KOER On-Demand Self Test before using OSC. Any Diagnostic Trouble Codes (DTCs) related to the transmission range (TR) sensor or the output shaft speed (OSS) sensor must be fixed or the PCM will not allow OSC to operate.
Using the NGS, OSC has 2 menus for operation, the BENCH MODE and the DRIVE MODE.
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.
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