P0693 on Jeep: How to Diagnose & Fix
Cooling Fan 2 Control Circuit Low
1 Jeep model · 1 documented issue
P0693 on Jeep by model: symptoms, diagnosis and fix
Owners of 3.6L JK Wranglers report the electric radiator fan stopping, with code P0480 and the engine overheating at idle or low speed, especially in hot weather. The 3.6L fan has its controller built into the fan assembly and runs on a power feed from the battery plus a control signal from the fuse and relay module (TIPM), so the cause can be the fan, its power or ground connection, or the signal. Applies to: 2012-2018 Jeep Wrangler and Wrangler Unlimited (JK) with the 3.6L Pentastar V6. Owner reports name a 2015 JK Unlimited and other 3.6L JKs.
Common Symptoms
- Check-engine light with code P0480
- Engine overheats when sitting still or at low speed
- Radiator fan does not spin at all
How to Fix
If the temperature climbs at idle, stop and let the engine cool rather than driving it hot. Owners report two different causes: on one 2015 JK the fault was a loose power connection at the battery (the owner suspects it was loosened during a stereo install), while other owners replaced the fan assembly, one after water and mud got into it. Have a technician check the fan's power, ground and control signal before replacing the fan or the TIPM.
Sources for this issue (2)
P0693 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0693 mean on a Jeep?
P0693 stands for "Cooling Fan 2 Control Circuit Low." The control module detected a low-voltage (short-to-ground or open) condition in the cooling fan 2 control circuit. The fan 2 control output is below the expected range. On Jeep it is documented across 1 model: Wrangler.
What are the most common causes of P0693?
The most common causes of P0693 are: Short to ground in the fan 2 control circuit, Faulty cooling fan relay or fan motor, Damaged/corroded wiring, Poor ground, Internal PCM driver fault. The specific cause varies by vehicle.
How much does it cost to fix P0693 on a Jeep?
Repair costs vary widely with the root cause and Jeep model; each issue on this page carries its own estimate where one is published.
Looking for P0693 on a different make?
View P0693 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.