The P2615 code indicates that the engine control module is receiving a low voltage signal from the camshaft position sensor circuit on bank 1. This can affect ignition timing and fuel delivery, leading to performance issues.
The sensor itself may have failed or be out of spec, providing a weak or intermittent signal that the PCM interprets as low voltage.
Corroded, broken, or loose connections in the sensor harness can reduce voltage, causing the circuit to register as low.
A short between the signal wire and chassis ground can pull the voltage down, triggering the low signal detection.
A problem inside the PCM's camshaft position sensor input circuit, such as a failed transistor or protection diode, can cause low voltage readings.
Incorrect camshaft timing or a worn timing chain can place the sensor out of position, resulting in an abnormal signal pattern.
No, PCM failure is uncommon; most often the issue is a bad sensor, wiring, or connector.
A severely low voltage can affect sensor signals, but the code specifically points to the camshaft position sensor circuit.
Driving may be possible for a short time, but the engine could stall or run poorly, so the issue should be addressed promptly.
If corrosion is the cause, cleaning the connector may restore proper voltage, but the underlying cause should be verified before assuming it is fixed.