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Home >> Mazda >> 2024 >> 3 Preferred, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic (1 Of 6) (VIN Y) >> DTC P0046-00: WASTEGATE Valve Actuator Control Circuit High Input

DTC P0046-00: WASTEGATE Valve Actuator Control Circuit High Input

P0046-00: (PCM - SKYACTIV-G 2.5T) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Wastegate valve actuator control circuit high input
Detection condition
  • If the voltage from the wastegate valve actuator is above specified value, the PCM determines that the wastegate valve actuator circuit has a malfunction.
Fail-safe
  • Stop the supercharging pressure control. (fully open the wastegate valve)
Possible cause
  1. Malfunction in wiring harness (including connector/terminal) between PCM and wastegate valve actuator (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .)
  2. Wastegate valve actuator malfunction (Refer to WASTEGATE VALVE ACTUATOR INSPECTION [SKYACTIV-G 2.5T] in service information.)
  3. PCM malfunction (Refer to PCM REMOVAL/INSTALLATION in service information.)
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
  2. Perform the KOEO or KOER self test. (See DTC INSPECTION .)
G16781926Courtesy of MAZDA MOTORS CORP.
1 PCM
2 Wastegate valve actuator