DTC P2401: EVAP System Leak Detection Pump Control Circuit Low

Fig 1: DTC P2401 Detection Condition & Possible Causes Chart

Courtesy of MAZDA MOTORS CORP.

Diagnostic Procedure 

Fig 2: DTC P2401 Diagnostic Procedure Chart (Step 1-8)

Courtesy of MAZDA MOTORS CORP.

Fig 3: DTC P2401 Diagnostic Procedure Chart (Step 9-10)

Courtesy of MAZDA MOTORS CORP.