Nissan Sentra B18 (2020-2025) Service Manual: Confirmation Procedure

Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Dtc/circuit Diagnosis / U2140-87 Can Comm Err (ecm) / Confirmation Procedure

Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE
1. CONSULT
  1. Ignition switch ON and wait for 2 seconds or more.
  2. Select “Self Diagnostic Result” mode of “HANDS FREE MODULE”.
Is DTC detected?
YES >>
Refer to DTC Diagnosis Procedure.
NO >>
To check malfunction symptom before repair. Refer to Intermittent Incident.
NO >>
Confirmation after repair: Inspection End.

Dtc Description

DTC Description DESCRIPTION CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Sentra vehicle multiplex communication line with hig ...

Dtc Diagnosis Procedure

DTC Diagnosis Procedure CHECK CAN COMMUNICATION Check CAN communication. Refer to Trouble Diagnosis Flow Chart. Is DTC “U2140-87” ...

Other materials:

P2239 O2 Sensor 1 Bank 1
Dtc Description DTC Description DTC DETECTION LOGIC To judge malfunctions, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control. DTC ...

Precautions for Suspension
When installing rubber bushings, the final tightening must be carried out under unladen conditions with tires on ground. Spilled oil might shorten the life of rubber bushings. Be sure to wipe off any spilled oil Unladen conditions mean that fuel, engine coolant and lubricant are full. ...

Multiport Fuel Injection System or Engine Control System
Before connecting or disconnecting any harness connector for the multiport fuel injection system or ECM: Turn ignition switch to вЂњOFFвЂќ position. Disconnect negative battery terminal. Otherwise, there may be damage to ECM. Before disconnecting pressurized fuel line from ...