Diagnose

This chapter describes how to diagnose and repair a fault in a product. Select Diagnose and start your fault tracing.

Note: The screen images shown in the help may differ from those in Tech Tool depending on the product that is being diagnosed.

Note: Depending on the connected product you might not be able to navigate through the ordinary diagnosis flow. In that scenario, you will only see the DTC Viewer when selecting Diagnose. When you select Diagnose, you will only see the DTC Viewer. For more information about the DTC viewer, see DTC list and DTC details.

Select symptoms (Step 1 of 3)

The symptoms are presented in several levels in order to allow you to select the most accurate symptom. By clicking on and expanding a symptom area (for example, Engine Start), specific symptoms will be presented (for example, Engine cranks but does not start).

Symptoms can be displayed with or without details. The symptom description is opened when a symptom that has an Edit icon is selected.

Note: To make changes, click the Back button in the lower right on the screen. This can be done in any step in the diagnostic flow.

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You can quickly search for symptoms using the search field.

Note: The search function is not applicable to VCE and SDLG products.

Icon

Description

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Symptom with details that need to be specified.

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When details have been specified, this icon will be displayed next to the symptom


Select symptoms without details

  1. Select a component area.
  2. Select a symptom area.
  3. Select the symptom that best describes the fault. If you are uncertain of the fault, select more than one symptom. You can unselect symptoms by clicking them again.
  4. Click Continue >.

Select symptoms with details

  1. Select a component area.
  2. Select a symptom area.
  3. Select the symptom that best describes the fault. If you are uncertain of the fault, select more than one symptom. You can unselect symptoms by clicking them again.
  4. In the detailed panel, displayed on the right side, you will find a short description of the symptom; here you can specify details.
  5. Click Continue >.

View DTC information (Step 2 of 3)

With connection to product

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The DTC List displays the DTCs detected in the product. See DTC list for detailed information.

  1. Click Continue >.

Information about the currently selected DTC is shown under DTC details.

Without connection to product

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When there is no connection to a product, DTCs must be handled manually.

  1. Click Edit List....
  2. Select DTCs by setting the status to Active or Inactive for the DTCs you want to add to the DTC list.See DTC list for detailed information,
  3. Click OK.
  4. Click Continue >.

Information about the currently selected DTC is shown under DTC details.

DTC information toolbar

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Name

Description

Refresh

Rereads the DTCs. If there is no connection to the product, they must be selected manually.

Clear

Opens a separate window containing all connected DTCs. Select the control units you want to clear DTCs from.

Note: To get the best result when clearing DTCs, it is advisable to select all control units.

Filter

Select which DTCs should be displayed in the list.

Edit List...

Set a status manually for a DTC and add it to the DTC list.

Filter applied

Displayed if there is an active filtration of the DTCs.


DTC list

Note: To avoid confusion about time mismatch it is good to know that when reading DTCs, Tech Tool is using local time (based on PC settings), while DTCs set in the product are using UTC.

Product Time — The date and time of the product.

Engine Hours — Total hours the engine had been running.

Readout Time — The date and time from the local computer.

Table Heading

Description

Control Unit

The name of the control unit.

DTC

The DTC identifier and error type.

Status

The DTC can be active or inactive.

Last Occurrence

The date and time of the last occurrence of the DTC.

Count

Number of times the DTC has been detected.


DTC details

Details about the selected DTCs are shown in DTC Details. The information is divided into different areas — Detailed Information, Detailed Status Information, Service Information and Freeze Frame Information. Displayed information depends on the electrical system of the product.

Click the title row to expand the information.

Detailed information

Table Heading

Description

Fault Type

The name of the DTC.

DTC Display Value

The code that is displayed in the product's information display.

First Occurrence

The date and time of the first occurrence of the DTC.

Last Occurrence

The date and time of the last occurrence of the DTC.

OBD Days Remaining

The number of days remaining.


Detailed status information

This section contains more detailed information about the DTC. Applies only to products with VERSION 3 and 4 electrical system.

Service bulletin

Diagnostic information for the selected DTC.

Note: Applies only to Renault.

Freeze Frame Information

A freeze frame is a collection of values from a number of sensors and components, saved around the time when the error code was set.

This information is important, since it can contain clues as to how the vehicle was being driven when the error occurred. It is also possible to read any abnormal sensor values or see if the vehicle was being driven under abnormal conditions when the error occurred.

Table Heading

Description

Parameter

Contains static information from a readout of Vehicle Mode, Outdoor Temperature, Odometer Value, Fan Speed, Vehicle Speed etc.

ID

The ID number of the parameter.

Unit

Parameter units. Percent, speed, pressure etc.

Value

The unit value for the parameter.


Run diagnostics (Step 3 of 3)

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  1. Select a DTC area in Select Fault Tracing Area.
  2. Select one of the recommended procedures in Select Diagnostic Procedure.
  3. Click Start >.
  4. Follow the displayed step-by-step instructions or, if applicable, use the hub-navigation.

The Select Diagnostic Procedure list is divided into the following sub-headers.

Heading

Description

DTC: Active

Active DTCs related to selected system.

Function test

Suggested fault tracing procedures based on selected symptoms and, when appropriate, answers to the symptom questions (from Driver Interview).

DTC: Inactive

Inactive DTCs related to selected system.

Information

Additional information.


Icon

Description

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Reset the picture.

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Zoom in the picture.

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Zoom out the picture.

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Move around the picture.

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View additional information.

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In progress.


Different icons can be displayed in the Select Fault Tracing Area list.

Icon

Description

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The functional area or component area that can be fault traced.

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This fault indication is not covered in the diagnostics steps in Tech Tool. Instead there is a reference to the service information.

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No information is available in Tech Tool. There is a reference to external information that can be helpful.


These icons symbolize different properties that are associated with fault tracing.

Icon

Description

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Remove transmission.

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Requires a test drive.


These icons show the status of the procedure.

Icon

Description

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Fault tracing has not been done/was aborted or the result was unknown.

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Fault tracing was completed and no fault was found.

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Fault tracing was completed and a fault was found.

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Fault tracing could not be completed.

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Fault tracing was completed and a fault was found. The fault was repaired and the verification was successful.

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Fault tracing was completed and a fault was found. The fault was repaired but the verification failed.

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Fault tracing was completed and a fault was found. The verification was not completed.

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Fault tracing was completed but the cause of failure is unknown.


Diagnostic instructions

Step-by-step instructions

The following information provides dynamic step-by-step instructions for the user on how to fault trace a specific problem after starting the diagnostic procedure.

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  1. As each step is executed:
    • Click Continue > to approve a step result or to continue to the next step.
    • Click Yes to approve a step result or to continue to the next step.
    • Click No to reject the step result.
    • Click < Back to return to the previous step.
    • Click Cancel to end the procedure.
  2. Once the fault is found, a link to service information is displayed. Click the link to open the service information application and display the relevant information.
  3. Repair the fault and then verify that the problem is solved.

Hub-navigation instructions

The start page will provide information in a hub-navigation manner rather than using the step-by-step interface. It displays a dashboard with relevant information to assist in finding the root of a problem. The hub-navigation lets you create your own fault-tracing workflow.

  1. Use the hub-navigation dashboard to diagnose the Product.
  2. Once the fault is found, a link to service information will be available. Click the link to open the service information application and display the relevant information.
  3. Repair the fault and then verify that the problem is solved.
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Note: Click the help button if you need any guidance with the diagnosing process using the hub-navigation dashboard.

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Note: The Tech tip contains useful information for the technician to help diagnose the system.

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Operations

You can start some operations directly from the Diagnose dashboard.

  • Open the Operations tab
  • Select Start the Test
  • Test/Operation will begin in new window
  • After test/operation is done, it will return to the diagnose dashboard
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Refresh DTCs

DTCs can be refreshed straight from the Diagnose dashboard.

  • Open the Refresh Status tab
  • Start a refresh and the DTC status will be updated
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Tool list

In the tool list you will find the various tools needed to perform the fault tracing.

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Click the various tools to see a detailed image of the tool needed.

View different images

The table contains information about the available options for the images shown in the fault tracing steps. Depending on the fault tracing, the available buttons may vary.

Icon

Description

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View an explanatory picture that is associated with the text displayed on the right side. This is the default picture.

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View picture that shows the component location.

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View picture that shows schematic for the circuit.

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View block diagram.

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View picture that shows measuring points.

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View protocol.

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View component specifications.


Icons shown when electrical measurements are needed.

Icon

Description

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88890074 Multimeter.

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Resistance measurement.

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Voltage measurement.

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Frequency measurement.

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Insulation measurement.

Note: 88890142 Multimeter.

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The vehicle must be in Power OFF mode when the measurement takes place.

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The vehicle must be in Power ON mode when the measurement takes place.

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Table showing target values

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Reliable ground point. Click the button to see reliable ground points in the vehicle.

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Step back to previous view.


View symptoms and DTCs

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The Step Navigation is found in the bottom left corner. It is a drop-down list with links to the different steps in the Diagnostics flow.

You can always use the links to go back and view the inputted information regarding the product symptoms or view the listed DTCs. To make changes, use the Back button.

Note: If a diagnostic procedure is running, the Select Symptom step and View DTC Information step will be locked in the Step Navigation list.

Step

Description

1. Select Symptoms

View, change, or add symptoms. If symptoms are changed or added, the navigation button Continue > must be used to go to the next step.

2. View DTC Information

View DTC details, Refresh or Clear DTCs. If Refresh or Clear is run, the navigation button Continue > must be used to go to the next step.

3. Run Diagnostic

Navigates back to this step if nothing has been changed in the previous steps.