DTC Detection Logic
WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
| DTC No. |
Trouble diagnosis name |
DTC detecting condition |
Possible cause |
| P1551 |
Battery current sensor circuit low input |
An excessively low voltage from the sensor is sent to ECM. |
- Harness or connectors
(Battery current sensor circuit is open or shorted.)
(Accelerator pedal position sensor 2 circuit is shorted.)
[Camshaft position sensor (bank 1) circuit is shorted.]
(Crankshaft position sensor circuit is shorted.)
(EVAP control system pressure sensor circuit is shorted.)
[Exhaust valve timing control position sensor (bank 1) circuit is shorted.]
(manifold absolute pressure sensor circuit is shorted.)
- Battery current sensor
- Accelerator pedal position sensor
- Camshaft position sensor (bank 1)
- Crankshaft position sensor
- EVAP control system pressure sensor
- Exhaust valve timing control position sensor (bank 1)
- manifold absolute pressure sensor
|
| P1552 |
Battery current sensor circuit high input |
An excessively high voltage from the sensor is sent to ECM. |