Nissan Sentra Service Manual: How to read wiring diagrams

Key to Symbols Signifying Measurements or Procedures

...

Connector symbols

Most of connector symbols in wiring diagrams are shown from the terminal side. Connector symbols shown from the terminal side are enclosed by a single line and followed by the direction mark. ...

Other materials:

Wiring diagram
Eco mode system Wiring Diagram ...

P2096, P2097 A/F Sensor 1
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible Cause P2096 POST CAT FUEL TRIM SYS B1 (Post catalyst fuel trim system too lean bank 1) The output voltage computed by ECM from the A/F ...

P050A, P050B, P050E Cold start control
Description ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. DTC Logic DTC DETECTION LOGIC NOTE: If DTC P050A, P050B or P050E ...