DTC P0727:00 [Aw6A-El]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0727:00	Engine speed signal error
DETECTION CONDITION	If the engine speed signal from the PCM, which is transmitted using the CAN communication, is invalid and the condition has continued for 500 ms or more. Diagnostic support note: The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle. The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle. PENDING CODE is not available. FREEZE FRAME DATA is available. The DTC is stored in the TCM memory.
POSSIBLE CAUSE	PCM malfunction TCM malfunction

DTC P0727:00

Engine speed signal error

DETECTION CONDITION

If the engine speed signal from the PCM, which is transmitted using the CAN communication, is invalid and the condition has continued for 500 ms or more.

Diagnostic support note:

The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
PENDING CODE is not available.
FREEZE FRAME DATA is available.
The DTC is stored in the TCM memory.

POSSIBLE CAUSE

PCM malfunction
TCM malfunction