P0702 on 2005-2013 Jeep Grand Cherokee — Transmission Control System Electrical
1 vehicles · 1 makes · $300-$3,500 repair
Most Reported On
P0702 is an OBD-II diagnostic trouble code meaning “Transmission Control System Electrical.” Indicates the PCM/TCM has detected an electrical fault (open, short, or out-of-range voltage) within the transmission control system circuitry rather than a performance issue. Points to wiring, connectors, or the control module itself. This code is most commonly reported on 2005-2013 Jeep Grand Cherokee, with repair costs ranging from $300 to $3,500.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0702, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P0702 mean?
P0702 stands for "Transmission Control System Electrical." Indicates the PCM/TCM has detected an electrical fault (open, short, or out-of-range voltage) within the transmission control system circuitry rather than a performance issue. Points to wiring, connectors, or the control module itself.
What are the most common causes of P0702?
The most common causes of P0702 are: Open or shorted wiring in the transmission control circuit, Corroded or loose connectors, Faulty transmission control module, Failed transmission solenoid pack or internal harness, Damaged ground circuit. The specific cause varies by vehicle.
How much does it cost to fix P0702?
Repair costs for P0702 range from $300 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by P0702?
Au7o has documented P0702 across 1 vehicle models from 1 manufacturers: Jeep.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.