Nissan Sentra manuals

Nissan Sentra Service Manual: Ecm branch line circuit

Diagnosis procedure

1.Check connector

  1. Turn the ignition switch off.
  2. Disconnect the battery cable from the negative terminal.
  3. Check the terminals and connectors of the ecm for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal? Yes >> go to 2.

No >> repair the terminal and connector.

2.Check harness for open circuit

  1. Disconnect the connector of ecm.
  2. Check the resistance between the ecm harness connector terminals.

Is the measurement value within the specification?


Is the measurement value within the specification? Yes >> go to 3.

No >> repair the ecm branch line.

3.Check power supply and ground circuit

Check the power supply and the ground circuit of the ECM. Refer to EC-164, "Diagnosis Procedure".

Is the inspection result normal? YES (Present error)>>Replace the ECM. Refer to EC-485, "Removal and Installation".

YES (Past error)>>Error was detected in the ECM branch line.

NO >> Repair the power supply and the ground circuit.

Main line between ipdm-e and dlc circuit
Diagnosis procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and ...

Abs 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 abs actuator and electri ...

Other materials:

Starting the engine
Apply the parking brake. CVT model: Move the shift lever to P (Park) or N (Neutral). P (Park) is recommended. The shift lever cannot be moved out of P (Park) and into any of the other gear positions if the ignition switch is turned to the OFF position or if the key is removed from th ...

Precaution
Precaution for supplemental restraint system (SRS) "air bag" and "seat belt pre-tensioner" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injur ...

Removal and installation
Power socket Removal and installation Front console power socket Removal Remove the cvt/mt shift selector finisher. Refer to ip-14, "exploded view". Remove cap from the front console power socket. Remove the screws (a) and the storage bin (1). Disconnect the harness ...

© 2014-2026 Copyright www.nisentra.com