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DTC P0629-00: Fuel Pump Control Module System: Current Error

P0629: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Fuel pump control module system: Current error
Detection condition
  • The PCM detects over-current during the fuel pump control module control.
Fail-safe
  • Stops fuel pump control
  • Inhibits engine-stop by i-stop control.
Possible cause
  1. Malfunction in wiring harness (including connector/terminal) between fuel pump unit and fuel pump control module (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .)
  2. Fuel pump unit malfunction (Refer to [FUEL PUMP UNIT INSPECTION ] in service information).
  3. Fuel pump control module malfunction (Refer to [FUEL PUMP CONTROL MODULE INSPECTION ] in service information).
  4. 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 .)
G16689116Courtesy of MAZDA MOTORS CORP.
1 Battery
2 Fuel pump relay
3 Fuel pump control module
4 Fuel pump unit