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TransmissionModerate⚠️ Professional Recommended

P0702

Transmission Control System Electrical

A general electrical fault has been detected within the transmission control system.

SeverityModerate
CategoryTransmission
Est. Repair Cost$150-$700
Code TypePowertrain
DIY RepairProfessional

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Inspect transmission wiring harness
  • Step 2:Test TCM power and ground
  • Step 3:Replace faulty component
💡 Pro Tip: Transmission wiring harnesses run through a lot of heat and vibration - physical damage there is a very common cause of this general code.

Repair Cost Estimate

Full Repair Estimate
$150-$700
DIY Possible?
PRO
Severity
Moderate

Frequently Asked Questions

What does OBD2 code P0702 mean?+
P0702 stands for Transmission Control System Electrical. A general electrical fault has been detected within the transmission control system.
What causes code P0702?+
Damaged wiring harness; Corroded connector; TCM internal fault; Failed solenoid
How do I fix code P0702?+
Inspect transmission wiring harness; Test TCM power and ground; Replace faulty component
How much does it cost to fix P0702?+
Estimated repair cost for P0702 is $150-$700.
Is P0702 DIY-friendly?+
P0702 typically requires professional equipment and a qualified mechanic.

AI Diagnosis

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