DTC Detection Logic
NOTE:
If DTC P1078 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to
DTC LOGIC . DTC DETECTION CONDITION AND POSSIBLE CAUSES REFERENCE TABLE
| DTC No. |
Trouble diagnosis name |
DTC detecting condition |
Possible cause |
| P1078 |
Exhaust valve timing (EVT) control position sensor (bank 1) circuit |
An excessively high or low voltage from the sensor is sent to ECM. |
- Harness or connectors [EVT control position sensor (bank 1) circuit is open or shorted.
- EVT control position sensor
- Crankshaft position (CKP) sensor
- Camshaft position (CMP) sensor (bank 1)
- Accumulation of debris to the signal pick-up portion of the camshaft
|
| P1084 |
Exhaust valve timing (EVT) control position sensor (bank 2) circuit |
- Harness or connectors [EVT control position sensor (bank 2) circuit is open or shorted.
(CKP sensor circuit is shorted.
CMP sensor (bank 2) circuit is shorted.
Battery current sensor circuit is shorted.
APP sensor 2 circuit is shorted.
(EVAP control system pressure sensor circuit is shorted.
(Refrigerant pressure sensor circuit is shorted.
- EVT control position sensor (bank 2)
- CKP sensor
- CMP sensor (bank 2)
- Battery current sensor
- Accelerator pedal position (APP) sensor
- EVAP control system pressure sensor
- Refrigerant pressure sensor
- Accumulation of debris to the signal pick-up portion of the camshaft
|