DTC Detection Logic

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1551

BAT CURRENT SENSOR

(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.)

• Battery current sensor
• Sensor power supply 2

P1552

Battery current sensor circuit high input

(BAT CURRENT SENSOR)

An excessively high voltage from the sensor is sent to ECM.