P045B OBD II Trouble Code Exhaust Gas Recirculation B Control Circuit Range Performance
How to quickly diagnose, repair, and info on symptoms and causes of a P045B trouble code which indicates an EGR B control circuit performance problem.
Symptoms of P045B OBD II Trouble Code
- Open or short in the 5 Volt reference circuit
- Open or short in the ground circuit
- Open or short in the PCM controlled voltage circuit
- Bad PCM (less likely)
Common Causes of P045B OBD II Trouble Code
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