General Information

Engine Control
P2501 AMS Voltage Rationality - General Information

Component Location





General Description

Battery sensor is mounted on the battery (-) terminal. It transmits battery voltage, current, temperature information to ECM.ECM controls the generating output by changing the duty cycle to the generator based on these signals.

DTC Description

ECM sets this code when there is a difference (beyond limits) between the battery voltage at the ECM and the voltage at the battery senor.

DTC Detecting Condition





Diagnostic Circuit Diagram