DTC U0301-09; U0401; Abnormal Message From Pcm: Notes
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DTC |
U0301:09, U0401:00 |
Abnormal message from PCM |
| DETECTION CONDITION |
- Correct data cannot be received from PCM
|
| FAIL-SAFE FUNCTION |
- U0301:09
- Permits the control and does not illuminate each warning/indicator light.
- U0401:00
- Illuminates the TCS/DSC indicator light *1
and smart city brake support (SCBS) indicator light (amber) *1*2
.
- Tire pressure monitoring system warning li ght *2
illuminates after flashes. (Not illuminated/flashed depending on malfunction content.)
- Inhibits the TCS *3
, DSC *3
, hill launch assist (HLA) *3
, TPMS *2*3
, and smart city brake support (SCBS) *2*3
controls.
*1
: Not illuminated depending on malfunction content.*2
: If equipped.*3
: Control enabled depending on malfunction content. |
| POSSIBLE CAUSE |
|
| SYSTEM WIRING DIAGRAM |
Not applicable |