P0506 – Idle Control System RPM lower Than Expected

Meaning:

When the PCM has detected that the engine idle speed is lower than the pre-programmed RPM., the P0506 happens
The P0506 is triggered when the PCM has detected that the engine idle speed is lower than the pre-programmed RPM

The PCM has detected that the engine idle speed is lower than the pre-programmed RPM.

Main Symptoms:

Possible Causes:

Diagnostic Steps:

  • Check for vacuum leaks, damages and restriction
  • Note that this code is informational more than anything, so look out for other codes that it comes with and address them first

Read More: 10 Best Jump Starter With Air Compressor Review 2020