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.
Note On Intermittents
Intermittent operation may be caused by a connector terminal that has not been properly crimped or seated in its connector body. Use PCM output cycling ESO2 to activate the circuits. Manipulate the wiring and connectors and observe the transmission test box indicators for malfunctions in a circuit. If electrical fault cannot be duplicated, road test vehicle using Transmission Test Box (J-38791). PCM and wiring can be by-passed by using the rotary switch to manually select gears and VCC to test transmission for intermittent operation. Incorrect 4th gear operation or excessive transaxle clutch slippage can cause an intermittent Code EO39.
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.