Nissan Maxima Service and Repair Manual: DTC/circuit diagnosis 

  • B terminal C 
  • Description  The "B" terminal is constantly supplied with battery power. Diagnosis Procedure  CAUTION: Perform diagnosis under the condition that the engine cannot start by the following procedure.  Remove fuel pump fuse.  Crank or start the engine (where possible) until the fuel pressure is depleted.  1.CHECK TERMINAL B POWER SUPPLY VOLTAGE  Turn ignition switch OFF.  Make sure that starter motor connector F27 terminal B connection is clean and tight.  Check voltage between starter motor connector F27 terminal B and ground.    B - ground Battery voltage 2.

  • S connector circuit 
  • Description  The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START position while the selector lever is in the P or N position. Diagnosis Procedure  CAUTION: Perform diagnosis under the condition that engine cannot start by the following procedure.  Remove fuel pump fuse.  Crank or start the engine (where possible) until the fuel pressure is released  1.CHECK "S" CONNECTOR CIRCUIT  Turn ignition switch OFF.  Disconnect starter motor connector F28.  Shift CVT selector lever to "P" or "N" position.

System description

B terminal C