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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2009PICKUP F350 SUPER DUTY, 2D PICKUP, 6.8 Y, 4WD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - DIAGNOSTIC METHODS (EXCEPT DIESEL & HYBRID)QUICK TEST DESCRIPTIONQUICK TESTKEY ON ENGINE RUNNING (KOER) ON DEMAND SELF-TESTTRANSMISSION CONTROL SWITCH (TCS) TEST
2009 Ford Pickup F350 Super Duty, 2D Pickup, 6.8 Y, 4WD, Standard
Transmission Control Switch (TCS) Test
2009 Ford Pickup F350 Super Duty, 2D Pickup, 6.8 Y, 4WD, StandardSECTION Transmission Control Switch (TCS) Test
The TCS test checks the ability of the EEC system to detect a change of state in the TCS. The switch is briefly cycled on all vehicles equipped with a TCS input. This is done during a KOER on demand self-test.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.