Nissan Sentra manuals

Nissan Sentra Service Manual: B terminal circuit

Description

Terminal “B” is constantly supplied with battery power.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to STR-10, "Wiring Diagram" (with Intelligent Key system) or STR-15, "Wiring Diagram" (without Intelligent Key system).

CAUTION:

Perform diagnosis under the condition that the engine cannot start by the following procedure.

  1. Remove fuel pump fuse.

  2. Crank or start the engine (where possible) until the fuel pressure is released.

1.CHECK “B” TERMINAL CIRCUIT

  1. Turn ignition switch OFF
  2. Check that starter motor B” terminal connection is clean and tight.
  3. Check voltage between starter motor connector F27 and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 2.

NO >> Check harness between battery and starter motor for open circuit.

2.CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)

  1. Shift selector lever to P (Park) or N (Neutral) position (CVT Models) or the clutch pedal is depressed (M/T Models).
  2. Check voltage between battery positive terminal and starter motor B terminal.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> Check harness between the battery and starter motor for continuity.

3.CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)

  1. Shift selector lever to P (Pack) or N (Neutral) position (CVT Models) or the clutch pedal is depressed (M/T Models).
  2. Check voltage between starter motor case and battery negative terminal.

Is the inspection result normal?


Is the inspection result normal? YES >> “B” terminal circuit is OK. Further inspection is necessary. Refer to STR-20, "Work Flow (With GR8-1200 NI)" or STR-24, "Work Flow (Without GR8-1200 NI)".

NO >> Check the starter motor case to engine mounting for high resistance.

DTC/circuit diagnosis
...

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 (Park) or N (Neutral) position (C ...

Other materials:

P0456 EVAP Control system
DTC Logic DTC DETECTION LOGIC This diagnosis detects leaks in the EVAP line between fuel tank and EVAP canister purge volume control solenoid valve, using the negative pressure caused by decrease of fuel temperature in the fuel tank after turning ignition switch OFF. If ECM judges there a ...

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 ...

How to use the APPS – i button
For more information about the “SiriusXM Travel Link”, and “SiriusXM Traffic” features, see the separate Navigation System Owner’s Manual. For more information about the “My Apps” key, see “NissanConnect™ App Smartphone Integration” in this section. For more infor ...

© 2014-2025 Copyright www.nisentra.com