What does code P1525 mean?

Q: What does code P1525 mean?

A Camshaft Position Actuator Control Open Circuit Bank 1. P1525 on BMW vehicles indicates that the engine control module (DME) has detected an open circuit in the wiring for the bank 1 camshaft position actuator, which is the solenoid that adjusts camshaft timing. The computer expects a certain electrical load when commanding the actuator, and an open circuit means no current can flow, so the variable valve timing system cannot function on that bank.

DTC codes / BMW codes / P1525

P1525 · BMWA Camshaft Position Actuator Control Open Circuit Bank 1

P1525 on BMW vehicles indicates that the engine control module (DME) has detected an open circuit in the wiring for the bank 1 camshaft position actuator, which is the solenoid that adjusts camshaft timing. The computer expects a certain electrical load when commanding the actuator, and an open circuit means no current can flow, so the variable valve timing system cannot function on that bank.

SystemPowertrain

Code typeBMW specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for BMW vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.