CA. Volvo Diagnostic Key Scan Tool

CA. Volvo Diagnostic Key scan tool

General

The figure below shows the Volvo Diagnostic Key ST display text when fault tracing in the MFI LH 2.4 and DI EZ 116 K Systems. The symbols show how to press the buttons to access the various texts. Steps CA2-CA5 show how the Diagnostic Key ST is used for Test Modes (DTMs) 1-3.

For a more detailed description of the Volvo Diagnostic Key ST see its User Manual.

Diagram X:

Symbols:

Diagram Y:

CA1




Connection and initiation
- Ignition off.
- Insert memory cassette.
- Connect the Volvo Diagnostic Key ST to the DLC.
- Ignition on.
Search for text "A2 FUEL SYSTEM: Press *".

CA2




Diagnostic test mode (DTM) 1
Search for the text "Mode 1: Diagnosis Press *" in diagrams X or Y.
- Press according to the adjacent diagram.
- Read off all DTCs.
- Make a note of all the DTCs.
^ Continue with Deleting DTCs CA3.

CA3




Deleting diagnostic trouble codes (DTCs)
Look for the text "Del. FUEL SYSTEM Press *" in accordance with diagram X or "Del IGNITION SYSTEM Press *" in accordance with diagram Y.
- Press according to the adjacent diagram to delete.
- Check that the DTCs have been deleted in accordance with DTM 1 CA2.

If the DI system DTCs have not been read:
^ Look for the text "A6 IGNITION SYSTEM: Press *".
^ Continue with DTM 1 CA2.

CA4




Diagnostic test mode (DTM) 2
Look for text "Mode2: Activation Press *" according to diagrams X or Y.
- Press according to the adjacent diagram to activate.
- Activate the sensors one at a time.
- Read which sensors have been activated on the display.

If there Is no response from the display and the LED still flashes rapidly when a sensor has been activated:
^ The control module has not received a signal from the sensor.

CA5




Diagnostic test mode (DTM) 3
Look for text "Mode3: Cyd. act. Press *".
- To initiate press according to the adjacent diagram.
- Listen to see if the component is activated.

If the component is not activated:
^ The component is not receiving a signal from the control module.