CA. Scan Tool With DTC Reader Access (System Tester)
NOTE: For more information on the diagnostic test modes DTM refer to Diagnostic Test Modes
CA. Volvo System Tester Scan Tool ST (Only certain markets, USA and Canada)
General
The Volvo System Tester Scan Tool with memory cassette for text readouts is a special tool that gives the user direct access to diagnostic trouble codes (DTC) transmitted from the data link connector (DLC). The memory cassettes for text readouts are available in certain markets (USA and Canada). For this reason all the menu texts and abbreviations used are in English. The memory cassette also contains text in French.
The communications interface with the Volvo On-board Diagnostics system is accessed by connecting the Scan Tool to the data link connector (DLC) A. Communication operates in diagnostic test modes 1, 2, 3, 4, 5 and 6.
The transmission control module (TCM) can be read off manually using the flashing code sequences, this however means relatively long flashing sequences for each incident. In contrast, using the facilities available in the ST, the TCM can be read off ten times faster. High speed activation occurs in approx. 10 seconds. After this initial period each operation takes only a few seconds to complete.
Depending on the system module to be activated the following abbreviations appear in the text display on the ST:
The Scan Tool Volvo System Tester keyboard functions
ENTER:
Activates the selected function and/or shows the next menu level.
EXIT:
Aborts a function or shows the previous menu level.
YES/NO:
Used for responding to questions.
The arrow keys are used for moving within the menus and scrolling the text on the display up or down when there is more text than can be displayed on one screen.
HELP:
The HELP key provides help functions for the keys in the menu that is being used at the time the HELP key is pressed.
The Display:
When the system is in operating mode a flashing symbol can be seen in the upper right-hand corner of the display. The abbreviations in the text display are explained in the table above. Text that requires the user to select or activate a function appears in CAPITAL letters. Text which gives information appears as lower case (small) letters.
Connecting the Volvo System Tester Scan Tool
- Ignition OFF.
- Insert memory cassette.
- Connect the adapter cable to the scan tool (ST) and data link connector (DLC) A.
- Connect cable for power supply to the car battery. Red cable clip to positive terminal.
- Turn on the ST using the switch on the adapter cable box.
- Ignition ON.
CA1
Self-diagnostics
The Scan Tool (ST) carries out a series of self-diagnostics to check memory cassette status and the ST hardware.
CA2
System identification
Check the correct memory cassette has been inserted in the ST. Confirm by checking the memory cassette version and language on the display.
NxD is the version number, x=Language.
CA3
Language selection
The memory cassettes are in two languages per cassette that are user-selectable.
CA4
Selecting a system
The memory cassettes will communicate with several on-board systems. To select the AW5O-42 TGM, first select 800 series, test mode group 4. Transmission and then AW5O-42.
CA5
Data Link Connector DLC connection
To tell the ST which DLC connection the adapter is connected to enter either A or B.
Connect the adapter to the correct DLC - A.
Press ENTER.
If there is no communication
Refer to FB.Communications problems with the Volvo Scan Tools Volvo System Tester Volvo Diagnostic key. F. Other Electrical Test and Communication Problem Solving
CA6
Transfer to high transmission speed
The Scan Tool (ST) automatically selects the highest transmission speed at the start of the program.
CA7
Diagnostic Test Mode (Test mode) menu
To select a Diagnostic Test Mode use the arrow keys and move the cursor to the desired DTM.
CA8
DIAGNOSTIC TEST MODE DTM 1 (MODE 1)
Reading DTCs
Displayed if there are no DTCs set.
NOTE: This does not mean the system has no faults, only that the OBD could not detect any.
If there are DTCs set the first menu shows how many have been set.
To step through the list of set DTCs press ENTER and they appear one at a time.
When the final DTC is desplayed, pressing ENTER again will restart the list from the first DTC.
EXIT at DTC 1: Returns to menu for selecting test mode "READ DTC".
EXIT at DTC 2 and above: Displays the previous DTC.
- (A1) in the top left corner of the display means the adapter is connected to DLC "A" and reading from connection 1.
- 1 -1 - 2 is the flashing DTC code sequence from the control module that appears on the text display.
- NO: 1 shows which DTC from the list is being displayed.
CA9
Clearing DTCs.
YES to clear the DTC.
NO / EXIT to return to the previous menu without clearing the DTC.
If all the DTCs have not been read the text as shown on the left will appear on the display.
Code not erased. Fault still exists.
NOTE: Read off the DTCs again to determine which one is still set.
When all the DTCs have been cleared the menu will appear.
Diagnostic Test Mode DTM 2 (Mode 2)
CA1O
Test of input signals from various sensors connected to the OBD system.
Activate the sensor which is to be tested using DTM 2.
For more sensor tests and activation of a another sensor.
ENTER to return to
"ACTIVATE SENSOR" menu.
EXIT to return to Test Mode Selection menu. "READ DTC", see CA7.
The "Invalid code" message. This could be caused by:
- Incorrect car model
- Incorrect DLC connector
- Bad signal.
Check these points and correct. Test the ST again.
ENTER to return to "ACTIVATE SENSOR" menu.
EXITto return to Test Mode Selection menu: "READ DTC", see CA7.
Diagnostic Test Mode DTM 3 (Mode 3)
CA11
Cyclic activation of components.
- Gear selector in position P or N
- Speed 0 (test cannot be carried out while driving).
- Engine idling
The components that will be activated are listed in the display.
Use the arrow keys to scroll the text on the display. The flashing square in the upper right corner of the display shows that activation is in progress.
Press EXIT to abort and/or return to selection of test mode menu: READ DTC", see CA8.
NOTE: On cars with Turbo and/or OBD II. When activating operation 6 and 7, according to the table below, no change/symptom is indicated on the engine, transmission or combined instrument. To check these functions proceed as follows before activating DTM 3:
- Ignition OFF
- Connect test box
- Connect a voltmeter to the terminals indicated in the table below.
Check the voltmeter reading when function is activated.
Diagnostic Test Mode DTM 4 (Mode 4)
CA12
Activating individual components and setting the reading speed.
NOTE: On cars with Turbo and/or OBD II. When activating DTCs 4-3-1 and 4-3-2 no change/symptom is indicated on the engine, transmission or combined instrument. To check these functions proceed as follows before activating DTM 4:
- Ignition OFF
- Connect test box
- Connect a voltmeter to the terminals indicated in the table below.
Check the voltmeter reading when function is activated.
Refer to Diagnostic Test Mode 4
- Gear selector in position P or N
- Speed 0 (test cannot be carried out while driving).
- Engine idling
Use the arrow keys and move the cursor to the component you are going to test.
Press ENTER to activate.
Select new component or press EXIT to return to previous menu, see CA7.
You will see this text when the component is activated. The indicator in the top right corner will flash.
Diagnostic Test Mode DTM 5 (Mode 5)
CA13
Reading data from a control module.
Use the arrow keys and move the cursor to the desired component.
Press ENTER to activate.
Select new component or press EXIT to return to previous menu, see CA7.
You will see this text while contact is being established with the control module.
The data will appear in the display.
Diagnostic Test Mode DTM 6 (Mode 6)
CA14
Writing data to a control module.
Use the arrow keys and move the cursor to the component.
Press ENTER to activate.
Select new component or press EXIT to return to previous menu, see CA7.
You will see this text while the ST is transmitting the default values to the control module.
And an acknowledgement when the task is complete.