Freeze Frame Data & 1ST Trip Freeze Frame Data

NOTE: 1st trip freeze-frame data values can only be displayed with Nissan's CONSULT-II, and are not displayed with generic scan tool.

ECM records operating conditions such as fuel system status, calculated load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed, vehicle speed and base fuel schedule and intake air temperature at the moment a malfunction is detected.

Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data. The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or Generic Scan Tool (GST). The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST.

Freeze-frame data is updated in order of priority. See FREEZE FRAME PRIORITY IDENTIFICATION table. If a priority 1 fault (misfire or fuel injection system malfunction) is detected in another trip when priority 2 freeze-frame data is already stored in ECM, priority 2 freeze-frame data will be replaced by priority 1 freeze-frame data.

NOTE: Only one 1st trip DTC and one set of freeze-frame data can be stored in ECM. If using a generic scan tool, 1st trip DTC freeze-frame information may not be accessible. Use CONSULT-II to retrieve 1st trip DTC freeze-frame information.

FREEZE FRAME PRIORITY IDENTIFICATION

Priority	Items
1	Freeze Frame Data For Misfire DTCs P0300-P0304, Fuel Injection System DTCs P0171 & P0172
2	All Freeze Frame Data Except Priority 1
3	1st Trip Freeze Frame Data