OBD Guide
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P184C

Transmission Cooling Fan Control Circuit

P184C is an OBD-II diagnostic trouble code meaning: Transmission Cooling Fan Control Circuit. Common causes: open or short circuit in control circuit, fan relay fault. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Transmission overheating
  • Transmission cooling fan not working
  • Check Engine light comes on
  • Reduced gear shifting efficiency when heated

Causes

  • Open or short circuit in control circuit
  • Fan relay fault
  • Blown fuse
  • Fan motor failure
  • Problems with the TCM module

How to Fix

  1. Check fan circuit fuses
  2. Test control relay
  3. Check the integrity of wiring and contacts
  4. Diagnose the fan motor
  5. Scan the TCM for errors

Related codes

P184DP184BP0480

FAQ

What does the P184C code mean?

P184C is an OBD-II diagnostic trouble code that indicates: Transmission Cooling Fan Control Circuit

What causes a P184C error code?

The most common causes of P184C include: Open or short circuit in control circuit; Fan relay fault; Blown fuse; Fan motor failure.

How do I fix a P184C diagnostic trouble code?

To fix P184C: Check fan circuit fuses. Test control relay. Check the integrity of wiring and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P184C?

Yes, but get it checked soon

How much does it cost to fix P184C?

The estimated repair cost for P184C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat