DTC P0819-00: M Position Switch/Up Switch/Down Switch: Signal Error
P0819-00: (TCM) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
M position switch/up switch/down switch: Signal error |
| Detection condition |
- Any of (1) to (4) conditions occurs: (1) M position switch signal is on even though forward oil pressure switch is not on in any position other than D position. (2) M position switch is off even though up or down switch signal is on in D position. (3) Up switch signal is on even though M position switch signal is off in any position other than D position. (4) Down switch signal is on even though M position switch signal is off in any position other than D position.
Preconditions
- Engine is running.
- Battery voltage: Specified value or more
- Transaxle range sensor related DTC is not recorded.
|
| Fail-safe |
|
| Possible cause |
- The shift panel (indicator) related DTCs are stored in the body control module (BCM). (See DTC TABLE [BCM]
.)
- Malfunction in wiring harness (including connector/terminal) between selector lever component and body ground (See
CIRCUIT INSPECTION
.) (See
CONNECTOR INSPECTION
.)
- Malfunction in wiring harness (including connector/terminal) between selector lever component and shift panel (indicator) (See
CIRCUIT INSPECTION
.) (See
CONNECTOR INSPECTION
.)
- Selector lever assembly malfunction
- Shift panel (indicator) (Refer to [INDICATOR REMOVAL/INSTALLATION]
in service information.)
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See
CLEARING DTC
.)
- Perform the following procedure to ensure that the DTC has been resolved:
- Verify that the battery voltage is 8 V or more.
- Drive the vehicle for 1 s or more under the following condition:
- Drive the vehicle for 1 s or more under the following condition:
- Drive the vehicle for 1 s or more under the following condition:
- D position
- Down switch: On
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Selector lever component |
| 2 |
Shift panel (indicator) |