Nissan Sentra Service Manual: Work Flow

Nissan Sentra Service Manual / General information / Basic inspection / Service information for electrical incident / Work Flow

STEP	DESCRIPTION
STEP 1	Get detailed information about the conditions and the environment when the incident occurred. The following are key pieces of information required to make a good analysis:
	WHAT	Vehicle Model, Engine, Transmission/Transaxle and the System (i.e. Radio).
	WHEN	Date, Time of Day, Weather Conditions, Frequency.
	WHERE	Road Conditions, Altitude and Traffic Situation.
	HOW	System Symptoms, Operating Conditions (Other Components Interaction). Service History and if any After Market Accessories have been installed.
STEP 2	Operate the system, road test if necessary. Verify the parameter of the incident. If the problem cannot be duplicated, refer to вЂњIncident Simulation TestsвЂќ.
STEP 3	Get the proper diagnosis materials together including: Power Supply Routing System Operation Descriptions Applicable Service Manual Sections Check for any Service Bulletins Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments.
STEP 4	Inspect the system for mechanical binding, loose connectors or wiring damage. Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness Layouts.
STEP 5	Repair or replace the incident circuit or component.
STEP 6	Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inadvertently created a new incident during your diagnosis or repair steps.

Service information for electrical incident

...

Control Units and Electrical Parts

PRECAUTIONS Never reverse polarity of battery terminals. Install only parts specified for a vehicle. Before replacing the control unit, check the input and output and functions of the compo ...

Other materials:

ABS Warning lamp
Component Function Check 1.CHECK ABS WARNING LAMP FUNCTION Check that ABS warning lamp in combination meter turns ON for approximately 2 seconds after ignition switch is turned ON. Is the inspection result normal? YES >> Inspection End. NO >> Proceed to diagnosis procedure. ...

Ecm 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 ECM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES > ...

Wheel alignment
Inspection PRELIMINARY INSPECTION WARNING: Always adjust the wheel alignment with the vehicle on a flat surface. NOTE: If the wheel alignment is out of specification, inspect and replace any damaged or worn rear suspension parts before making any adjustments. Check and adjust the wheel ...