DTC Detection Logic

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0102

MAF SEN/CIRCUIT-B1

(Mass air flow sensor circuit low input)

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

• Harness or connectors

  (The mass air flow sensor circuit is open or shorted.)

• Intake air leakage
• Mass air flow sensor

P0103

MAF SEN/CIRCUIT-B1

(Mass air flow sensor circuit high input)

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

• Harness or connectors

  (The mass air flow sensor circuit is open or shorted.)

• Mass air flow sensor