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.
Code 36, Shift Control Problem (3.8L): Notes
4T60E transaxle is electronically shifted. Within transaxle are 4 solenoids. Solenoid "A" is used for 1st and 4th gear operation only. Solenoid "B" is used for 1st and 2nd gear operation. Remaining 2 solenoids are for TCC operation only. All PRNDL indications are ignored as far as transaxle shifting is concerned except manual low. Code 36 will set if solenoid "B" failed in OFF position, which will cause transaxle to be in 4th gear, and desired gear is 1st, TPS is greater than 40 percent, engine speed is greater than 2000 RPM, VSS is 3-20 MPH and Codes 21, 22 and 24 are not present. Code will also set if solenoid "B" failed in ON position, which will cause transaxle to be in 1st gear, and desired gear is 4th, PRNDL is in 3rd or 4th, TPS is greater than 10 percent and Codes 31, 21 and 22 are not present. Code 36 does not turn on SERVICE ENGINE SOON light.
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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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