Acceleration Malfunction [PYUL]: Outline
WARNING: This page is about a different variant/trim than selected.
ACCELERATION MALFUNCTION (PYUL) DESCRIPTION AND POSSIBLE CAUSE
| Description |
- Acceleration from i-stop is not smooth.
- Suppresses (shock) when accelerating vehicle from i-stop.
- Engine vibration increases when engine is restarted.
|
| Possible cause |
NOTE:
- MT vehicles are not included because the driver releases the brake pedal and depresses the clutch pedal to accelerate.
Hill launch assist function system (DSC) malfunction
- False detection of inclination angle (cannot calculate correct road slope)
- Low-G sensor (built-into SAS control module) malfunction (In this case, the SAS control module records DTCs C0061:29 and C0062:29).
- Low-G sensor (built-into SAS control module) initialization malfunction (In this case, the SAS control module records DTC U2100:00).
- False detection of brake fluid pressure
- Brake fluid pressure sensor (built into electronically controlled brake unit/DSC HU/CM) malfunction
- Cannot maintain brake fluid pressure
- Electronically controlled brake unit/DSC HU/CM malfunction
AT system malfunction
- Electric AT oil pump malfunction (operation malfunction, insufficient pressure)
- Electric at oil pump relay malfunction (stuck open)
- Malfunction in wiring harness (including connector/terminal) between battery and electric AT oil pump relay
- Malfunction in wiring harness (including connector/terminal) between electric At oil pump and body ground
- Malfunction in wiring harness (including connector/terminal) between electric AT oil pump relay and electric AT oil pump
- AT main relay malfunction
- Malfunction in wiring harness (including connector/terminal) between battery and AT main relay
- Malfunction in wiring harness (including connector/terminal) between AT main relay and TCM
- Malfunction in wiring harness (including connector/terminal) between TCM and electric at oil pump
- Electric AT oil pump malfunction
- TCM malfunction
- AT malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery |
| 2 |
AT main relay |
| 3 |
Electric AT oil pump relay |
| 4 |
Electric At oil pump |
| 5 |
TCM |