DTC DETECTION LOGIC

DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause
P0102 | Mass air flow sensor (bank 1) circuit low input | An excessively low voltage from the sensor is sent to ECM. |

- Harness or connectors
  (The sensor circuit is open or shorted.)
- Intake air leaks
- Mass air flow sensor

P0103 | Mass air flow sensor (bank 1) circuit high input | An excessively high voltage from the sensor is sent to ECM. |

- Harness or connectors
  (The sensor circuit is open or shorted.)
- Mass air flow sensor

P010C | Mass air flow sensor (bank 2) circuit low input | An excessively low voltage from the sensor is sent to ECM. |

- Harness or connectors
  (The sensor circuit is open or shorted.)
- Intake air leaks
- Mass air flow sensor

P010D | Mass air flow sensor (bank 2) circuit high input | An excessively high voltage from the sensor is sent to ECM. |

- Harness or connectors
  (The sensor circuit is open or shorted.)
- Mass air flow sensor

DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

Which DTC is detected?
P0102, P010C>>GO TO 2.
P0103, P010D>>GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0102 and P010C

1. Start engine and wait at least 5 seconds.
2. Check DTC.

Is DTC detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>INSPECTION END
3.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103 and P010D-I

1. Turn ignition switch ON and wait at least 5 seconds.
2. Check DTC.

Is DTC detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103 and P010D-II

1. Start engine and wait at least 5 seconds.
2. Check DTC.

Is DTC detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>INSPECTION END