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DTC P1271, P1281 A/F SENSOR 1 EC-483 C D E F G H I J K L M A EC Revision: 2005 August 2005 Murano DTC P1271, P1281 A/F SENSOR 1 PFP:22693 Component Description ABS00A65 The A/F sensor is a planar dual-cell limit current sensor. The sensor < air). The exhaust gas components diffuse through the diffusion gap at the An electronic circuit controls the pump current through the oxygen- ° C (1,292 - 1,472 ° F). CONSULT-II Reference Value in Data Monitor Mode ABS00A66 Specification data are reference values. On Board Diagnosis Logic ABS00A67 To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the air fuel ratio (A/ DTC Confirmation Procedure ABS00A68 NOTE: WITH CONSULT-II 1. Start engine and warm it up to normal operating temperature. 2. Select “A/F SEN1 (B1)” or “A/F SEN1 (B2)” in “DATA MONITOR” mode with CONSULT-II. SEF579Z SEF580Z MONITOR ITEM CONDITION SPECIFICATION A/F SEN1 (B1) ● Engine: After warming up Maintaining engine speed at Fluctuates around 1.5V DTC No. Trouble diagnosis name DTC detecting condition Possible Cause P1271 Air fuel ratio (A/F) sensor 1 ● The A/F signal computed by ECM from the ● Harness or connectors ● Air fuel ratio (A/F) sensor 1 P1281 |