DTC P2090-00: Hydraulic Variable Valve Timing Control System: Low Input
P2090: 00 (PCM (H3T)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Hydraulic variable valve timing control system: Low input |
| Detection condition |
- The oil control valve (OCV) control voltage relative to the PCM control is too low.
|
| Fail-safe |
- Set the exhaust variable valve timing control to the maximum advanced position.
|
| Possible cause |
- Malfunction in wiring harness (including connector/terminal) between main relay and oil control valve (OCV) (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Malfunction in wiring harness (including connector/terminal) between oil control valve (OCV) and PCM (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Oil control valve (OCV) malfunction (Refer to [OIL CONTROL VALVE (OCV) INSPECTION
] in service information).
- PCM malfunction (Refer to [PCM REMOVAL/INSTALLATION
] in service information).
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Perform the KOER self test. (See DTC INSPECTION
.)
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery |
| 2 |
Main relay |
| 3 |
Oil control valve (OCV) |
| 4 |
PCM |