FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Reading and Clearing Diagnostic Trouble Codes

DIAGNOSTIC FUNCTION

HOW TO CONNECT THE SCAN TOOL M.U.T..-III)

Required Special Tools:
^ MB991958: Scan Tool M.U.T.-III Sub Assembly)
^ MB991824: Vehicle Communication Interface (V.C.I.)
^ MB991827: M.U.T-III USB Cable
^ MB991910: M.U.T-III Main Harness A (Vehicles with CAN communication system)





CAUTION:
To prevent damage to scan tool MB9911958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB9911958.


1. Ensure that the ignition switch is at the "LOCK" (OFF) position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 and the personal computer.
4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" position.

NOTE: When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color

7. Start the M.U.T.-III system on the personal computer.

NOTE: Disconnecting scan tool MB991958 is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES

Required Special Tools:
^ MB991958: Scan Tool M.U.T.-III Sub Assembly)
^ MB991824: Vehicle Communication Interface (V.C.I.)
^ MB991827: M.U.T.-III USB Cable
^ MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

CAUTION: To prevent damage to scan tool MB9911958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB9911958.

NOTE: If the battery voltage is low, diagnostic trouble codes will not be set. Check the battery if scan tool MB991958 does not display

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle Information" is displayed, check the contents.
5. Select "ETACS" from "System List", and press the "OK" button.

NOTE: When the "Loading Option Setup" list is displayed, check the applicable item.

6. Select "Diagnostic Trouble Code."
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.