P2D42

Symptoms

• The air conditioner does not turn on or operates intermittently
• Reduced interior cooling efficiency
• Check Engine light comes on
• Noise or knocking noise coming from the compressor area
• The air conditioning system turns off automatically

Causes

• Problems with wiring or contacts in the motor circuit
• Compressor motor malfunction
• Relay or fuse problems
• Air conditioner control module malfunction
• Short circuit in the circuit

How to Fix

1. Check the condition of fuses and relays
2. Diagnose the motor power supply circuit for opens and short circuits
3. Check contacts and connections in the circuit
4. Test the compressor motor
5. If necessary, replace the motor or compressor assembly

Related codes

Error P2D42 by Vehicle Brand