P1740Transmission

TCC or OD Solenoid Performance (Dodge/Chrysler/Jeep)

P1740 is a Dodge/Chrysler/Jeep transmission code for torque converter clutch (TCC) or overdrive (OD) solenoid performance. The PCM detected the solenoid not performing as expected.

🚗 Use caution. Shifting and torque converter lockup may be affected.
MEDIUM
severity
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🎯 Top Causes, Ranked by Likelihood

#1Faulty TCC or OD solenoid$100-$400
45%
A failing solenoid cannot apply lockup or overdrive correctly.
#2Low or degraded transmission fluid$50-$250
30%
Low or burnt fluid affects solenoid hydraulic operation.
#3Valve body or wiring issue$100-$800
25%
A worn valve body or wiring fault disrupts operation.

🩺 Common Symptoms

💰 Repair Cost: DIY vs Shop

DIY Cost
$50-$400
Shop Cost
$200-$900

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose P1740

1Check transmission fluid level and condition
2Test the TCC and OD solenoid operation
3Inspect the valve body and wiring
4Replace the faulty solenoid or repair the valve body

❓ Frequently Asked Questions

Can I drive with P1740?
With caution. Missing lockup hurts economy and can raise transmission temperature. Diagnose soon.
Is P1740 a Chrysler code?
Yes, P1740 is a Dodge/Chrysler/Jeep TCC or OD solenoid performance code.
What causes P1740?
A faulty TCC or OD solenoid, low or burnt fluid, or a valve body/wiring issue are common causes.

🔗 Related Codes

P0740P0743P0751
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