With Generic Scan Tool

HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES






Required Special Tool: MB991502: Scan Tool (MUT-II)

CAUTION: To prevent damage to the scan tool MB991502, make sure the ignition switch is "OFF" before connecting or disconnecting the scan tool MB991502.

NOTE:
- If the battery positive voltage is low, diagnostic trouble codes will not be output Check the battery if the scan tool cannot display.
- If the battery is disconnected or if the powertrain control module connector is disconnected, the diagnostic trouble codes will be erased.
Do not disconnect the battery or powertrain control module before the diagnostic trouble codes have been read.

1. Connect the scan tool to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Record the diagnostic trouble codes for Automatic Transmission.
4. Refer to the Diagnostic Trouble Code Chart. Diagnostic Trouble Code Descriptions
5. Turn the ignition switch to "OFF" and then back to "ON" again.
6. Erase the diagnostic trouble code by selecting DTC erase from SPECIAL MENU screen, using MUT-II.
7. Check for diagnostic trouble codes. Confirm the scan tool (MUT-II) displays "normal."
8. Turn the ignition switch to the "OFF" position.
9. Disconnect the scan tool.