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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (On-Board Diagnostic - Pcm (VIN A) (4 Of 4)) >> DTC U0304-00: Selector Lever Error (PYUL)

DTC U0304-00: Selector Lever Error (PYUL)

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U0304: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Selector lever error
Detection condition
  • Any one of the following conditions is met:
    • The PCM receives an error signal from the selector lever via CAN communication.
    • Selector lever internal malfunction
Fail-safe
  • The vehicle may be stopped depending on the malfunction conditions. (Switches to N position before stopping vehicle)
  • Inhibits engine-stop by i-stop control.
Possible cause
  1. DTCs are stored in the following modules. (CAN driver malfunction)
  2. Selector lever connector or terminal malfunction (See CONNECTOR INSPECTION .)
  3. PCM connector or terminal malfunction (See CONNECTOR INSPECTION .)
  4. Selector lever malfunction (Refer to [SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION ] ).
  5. PCM malfunction (Refer to [PCM REMOVAL/INSTALLATION ] ).
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 .)
System Wiring Diagram
  • Not applicable