P2524

A/C Request B Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–33 (est.)

Symptoms

Air conditioner won't turn on
Reduced performance of the air conditioning system
Check Engine light comes on
The fan runs at maximum speed

Causes

Short circuit in A/C request circuit
Faulty A/C relay
Wiring harness damage
Problems with the engine control unit (ECU)
Contact corrosion

How to Fix

Check the integrity of the wiring harness
Test the air conditioner relay
Measure the resistance in the circuit
Check connections and contacts
Replace damaged components if necessary

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