DTC P0507: Idle Air Control System Rpm Higher Than Expected

Fig 1: DTC P0507 Detection Condition & Possible Causes Chart

Courtesy of MAZDA MOTORS CORP.

Diagnostic Procedure 

Fig 2: DTC P0507 Diagnostic Procedure Chart (Step 1-7)

Courtesy of MAZDA MOTORS CORP.

Fig 3: DTC P0507 Diagnostic Procedure Chart (Step 8-11)

Courtesy of MAZDA MOTORS CORP.