| DTC P0843:00 |
Oil pressure switch No. 1 (Oil pressure switch B) stuck off |
| DETECTION CONDITION |
- Under the following conditions, oil pressure switch No. 1 stuck-off detected by combination of gear ratio malfunction and oil pressure switch pattern malfunction:
- Engine is running.
- ATF temperature is 20 °C {68 °F} or more
.
- There is no difference between vehicle speed signal from DSC HU/CM and output shaft speed sensor signal.
- Turbine/input shaft speed sensor and output shaft speed sensor DTC is not recorded.
Diagnostic support note
- The check engine 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.
- 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 available.
- DTC is stored in the TCM memory.
|
| FAIL-SAFE FUNCTION |
- Inhibits malfunctioning gear.
- Limits engine torque.
- Inhibits learning control.
- Inhibits manual mode.
- Inhibits neutral idle control.
- Inhibits AAS.
|
| POSSIBLE CAUSE |
- ATF is less than specified value
- Oil pressure switch No. 1 malfunction
|
| SYSTEM WIRING DIAGRAM |
Not applicable |