Nissan Rogue manuals

Nissan Rogue Service Manual: Circuit inspection

DESCRIPTION

OPEN A circuit is open when there is no continuity through a section of the circuit.
SHORT There are two types of shorts.
  • SHORT CIRCUIT
When a circuit contacts another circuit and causes the normal resistance to change.
  • SHORT TO GROUND
When a circuit contacts a ground source and grounds the circuit.

NOTE: Refer to GI-38, "How to Check Terminal" to probe or check terminal.

TESTING FOR “OPENS” IN THE CIRCUIT

Before you begin to diagnose and test the system, you should rough sketch a schematic of the system. This will help you to logically walk through the diagnosis process. Drawing the sketch will also reinforce your working knowledge of the system.

Testing for “opens” in the circuit

Continuity Check Method

The continuity check is used to find an open in the circuit. The digital multimeter (DMM) set on the resistance function will indicate an open circuit as over limit (no beep tone or no ohms symbol). Make sure to always start with the DMM at the highest resistance level.

To help in understanding the diagnosis of open circuits, please refer to the previous schematic.

Any circuit can be diagnosed using the approach in the previous example.

Voltage Check Method

To help in understanding the diagnosis of open circuits please refer to the previous schematic.

In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.

This is done by switching the DMM to the voltage function.

Any powered circuit can be diagnosed using the approach in the previous example.

TESTING FOR “SHORTS” IN THE CIRCUIT

To simplify the discussion of shorts in the system, please refer to the following schematic.

Testing for “shorts” in the circuit

Resistance Check Method

Voltage Check Method

GROUND INSPECTION

VOLTAGE DROP TESTS

Measuring Voltage Drop — Accumulated Method

Note in the illustration that there is an excessive 4.1 volt drop between the battery and the bulb.

Measuring Voltage Drop — Accumulated Method

Measuring Voltage Drop — Step-by-Step

Measuring Voltage Drop — Step-by-Step

CONTROL UNIT CIRCUIT TEST

System Description

CASE 1

System Description

INPUT-OUTPUT VOLTAGE CHART

Input-output voltage chart

CASE 2

System Description

INPUT-OUTPUT VOLTAGE CHART

Input-output voltage chart

Intermittent incident
DESCRIPTION Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the conditions present at the time of the incident. Doing so may help avoid a No ...

Consult/gst checking system
Description NOTE: This vehicle is diagnosed using the CONSULT-III plus.  When CONSULT is connected with a data link connector equipped on the vehicle side, it will communicate with the co ...

Other materials:

C1197 vacuum sensor
DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes C1197 VACUUM SENSOR When a malfunction is detected in vacuum sensor. Harness or connector  Vacuum sensor (brake booster)  Vacuum piping &nb ...

U1000 CAN COMM circuit
Description CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle multiplex communication system with high data communication speed and excellent error detection ability. Many electronic control units are equipped into vehicles, and ea ...

CAN system (type 6)
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 loose connection (connector side an ...

© 2014-2019 Copyright www.nirogue.com