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.
Automatic Transmission DTC
"A" 2 Defective Lock-Up Control Solenoid "B" 3 Defective Throttle Position (TP) Sensor 4 Defective Vehicle Speed Sensor (VSS) 5 Defective A/T Gear Position Switch 6 Defective A/T Gear Position Switch 7 Defective Shift Control Solenoid "A" 8 Defective Shift Control Solenoid "B" 9 Defective Countershaft Speed Sensor 10 Defective Engine Coolant Temp Sensor 11 Defective Ignition Coil 13 Defective Barometric Sensor 14 Shorted Or Open Wire Between TCM Terminal D16 & ECM, Faulty ECM 15 Defective Mainshaft Speed Sensor
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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