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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (On-Board Diagnostic - Pcm (VIN A) (2 Of 4)) >> DTC P0463-00: Fuel Gauge Sender Unit System: High Input (PYUL)

DTC P0463-00: Fuel Gauge Sender Unit System: High Input (PYUL)

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P0463: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Fuel gauge sender unit system: High input
Detection condition
  • The fuel gauge sender unit output voltage is too high.
Fail-safe
  • Not applicable
Vehicle status when DTCs are output
  • Not applicable
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 .)
Inspection/action procedure
  • Proceed with the inspection/action in the order from Step 1 below.
  • After part repair or replacement, perform the repeatability verifi cation procedure and perform a DTCinspection. (See DTC INSPECTION )
  • If the DTC inspection indicates the same DTC again, go to the next step.
  1. Inspect the wiring harness (including connector/terminal) between the fuel gauge sender unit and theelectrical supply unit (ESU) for a malfunction.

    Purpose/reason (possible cause) 

    Malfunction in wiring harness (including connector/terminal) between fuel gauge sender unit and electrical supply unit (ESU)

    Referred to service information item 

    (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .)

  2. Inspect the fuel gauge sender unit.

    Purpose/reason (possible cause) 

    Fuel gauge sender unit malfunction

    Referred to service information item 

    (See FUEL GAUGE SENDER UNIT INSPECTION .)

  3. Inspect the electrical supply unit (ESU).

    Purpose/reason (possible cause) 

    Electrical supply unit (ESU) malfunction

    Referred to service information item 

    (See ELECTRICAL SUPPLY UNIT (ESU) INSPECTION )

  4. Inspect body control module (BCM)

    Purpose/reason (possible cause) 

    Body control module (BCM) malfunction

    Referred to service information item 

    (See BODY CONTROL MODULE (BCM) INSPECTION )

  5. Replace the PCM.

    Purpose/reason (possible cause) 

    PCM malfunction (no other possible malfunction considered)

    Referred to service information item 

    (See PCM REMOVAL/INSTALLATION )

Refer to SYSTEM WIRING DIAGRAMS
G16689107Courtesy of MAZDA MOTORS CORP.
1 Electrical supply unit (ESU)
2 Fuel gauge sender unit
Function explanation (DTC detection outline)
  • Not applicable