P0693
Fan 2 Control Circuit Low
P0693 is an OBD-II diagnostic trouble code meaning: Fan 2 Control Circuit Low. Common causes: short circuit of the control wire of the second fan to ground, second cooling fan relay malfunction. Estimated repair cost: $11–222.
Symptoms
- Check Engine Light
- Engine overheating when the air conditioner is on
- The second fan does not turn on
- Reduced air conditioner efficiency
- Increased engine temperature in traffic jams
Causes
- Short circuit of the control wire of the second fan to ground
- Second cooling fan relay malfunction
- Broken or damaged wiring
- Second fan motor malfunction
- Internal ECU fault
How to Fix
- Read OBD-II codes
- Determine the location of the second cooling fan
- Measure the voltage in the fan control circuit 2
- Check the second fan relay and its connector
- Check fan motor (direct power supply)
- If the circuit is working properly - ECU diagnostics
Related codes
Error P0693 by Vehicle Brand
FAQ
What does the P0693 code mean?
P0693 is an OBD-II diagnostic trouble code that indicates: Fan 2 Control Circuit Low
What causes a P0693 error code?
The most common causes of P0693 include: Short circuit of the control wire of the second fan to ground; Second cooling fan relay malfunction; Broken or damaged wiring; Second fan motor malfunction.
How do I fix a P0693 diagnostic trouble code?
To fix P0693: Read OBD-II codes. Determine the location of the second cooling fan. Measure the voltage in the fan control circuit 2. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0693?
Do not drive — repair immediately
How much does it cost to fix P0693?
The estimated repair cost for P0693 is $11–222. Actual cost depends on your vehicle, location, and labor rates.
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