Description

Sensor Output Voltage

The battery current sensor installed on the positive (+) battery terminal detects the amount of current supplied from the generator.

The battery current sensor changes current to voltage (at the positive (+) battery terminal) and sends it to the ECM. The ECM controls the voltage of the generator based on the signals from the battery current sensor.

DTC No.

DTC Detection Condition

Trouble Area

P1550

The following condition continues for 10 seconds or more with the ignition switch ON (1 trip detection logic): • Difference between the maximum and minimum current values of the battery current sensor is 1 A or less

• Open or short in battery current sensor circuit

• Battery current sensor assembly

• ECM

P1551

Battery current sensor output value is 0.2 V or less for 0.5 seconds or more with the ignition switch ON

(1 trip detection logic):

• Short in battery current sensor circuit

• Battery current sensor assembly

• ECM

P1552

Battery current sensor output value is 4.8 V or more for 0.5 seconds or more with the ignition switch ON

(1 trip detection logic):

• Open in battery current sensor circuit

• Battery current sensor assembly

• ECM

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