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2014 - Mazda6 - Transmission/Transaxle

DTC P2855:00 [FW6A-EL]



DTC P2855:00

Low clutch hydraulic circuit/sealing malfunction

DETECTION CONDITION

  • Slow engaging after operating selector lever from N to D position.

    Diagnostic support note
  • The check engine light does not illuminate.

  • The automatic transaxle warning light illuminates if the TCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the TCM.

  • PENDING CODE is available.

  • FREEZE FRAME DATA is not available.

  • DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

Not applicable

POSSIBLE CAUSE

  • Low clutch piston sealing malfunction

  • Seal ring poor functioning

  • ATF is more than specified value

SYSTEM WIRING DIAGRAM

Not applicable


Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT ATF LEVEL

Yes

Adjust the ATF level to the specification, then go to the next step.

(See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [FW6A-EL].)

No

Replace the automatic transaxle.

(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FW6A-EL].)

2

VERIFY DTC TROUBLESHOOTING COMPLETED
  • Perform the following procedure to ensure that the DTC has been resolved:

    • Verify that the ATF temperature is 30 °C {86 °F} or more.

    • Perform the following operation 20 times.

      • Operate the selector lever from N to D position and wait for 5 s or more.

      • Operate the selector lever from D to N position and wait for 5 s or more.

  • Clear the DTC using the M-MDS.

    (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL].)

  • Perform the DTC inspection using the M-MDS.

    (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL].)

  • Is the DTC P2855:00 also present?

Yes

Replace the automatic transaxle.

(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FW6A-EL].)

No

DTC troubleshooting completed.




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