Nissan Sentra Service Manual: Dtc/circuit diagnosis

Basic inspection

Diagnosis and repair workflow Work Flow OVERALL SEQUENCE DETAILED FLOW 1.OBTAIN INFORMATION ABOUT SYMPTOM Interview the customer to obtain as much information as possible about the conditio ...

Power supply and ground circuit

Combination meter Combination meter : diagnosis procedure Regarding Wiring Diagram information, refer to MWI-28, "Wiring Diagram". 1.Check fuses Check that the following fuses are not bl ...

Other materials:

P0137 HO2S2
DTC Logic DTC DETECTION LOGIC The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold) causes the longer switching time. To judge the malfunctions of heated oxygen ...

P117A AIR Fuel ratio
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P117A is displayed with other DTC, first perform the trouble diagnosis for the other DTC. Refer to EC-94, "DTC Index". DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause ...

BCM  branch line circuit
Diagnosis procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the bcm for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? Yes > ...