OBD Guide
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P1652

Cooling Fan 2 Relay Control Circuit Conditions

P1652 is an OBD-II diagnostic trouble code meaning: Cooling Fan 2 Relay Control Circuit Conditions. Common causes: faulty fan relay, open or short circuit in control circuit. Estimated repair cost: $6–28.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–28 (est.)

Symptoms

  • Engine overheating
  • Cooling fan does not turn on
  • Check Engine Light Is On
  • Reduced engine power
  • Enabling emergency engine operation

Causes

  • Faulty fan relay
  • Open or short circuit in control circuit
  • Wiring Harness Problems
  • Contact corrosion
  • Engine ECU malfunction

How to Fix

  1. Check the condition of the fan relay
  2. Inspect the control circuit for damage
  3. Check contacts and connections
  4. Test the fan operation
  5. If necessary, replace the relay or repair the wiring

Related codes

P1651P1653P1654

Error P1652 by Vehicle Brand

BuickCadillacChevroletGMGMCMazdaOldsmobileSaturnToyotaVolkswagen

FAQ

What does the P1652 code mean?

P1652 is an OBD-II diagnostic trouble code that indicates: Cooling Fan 2 Relay Control Circuit Conditions

What causes a P1652 error code?

The most common causes of P1652 include: Faulty fan relay; Open or short circuit in control circuit; Wiring Harness Problems; Contact corrosion.

How do I fix a P1652 diagnostic trouble code?

To fix P1652: Check the condition of the fan relay. Inspect the control circuit for damage. Check contacts and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1652?

Limited driving only, diagnose soon

How much does it cost to fix P1652?

The estimated repair cost for P1652 is $6–28. Actual cost depends on your vehicle, location, and labor rates.

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