Retrieving & Clearing Diagnostic Trouble Codes (Section 11): Notes
Connect the Impulse Counter Scan Tool and read DTC memory. Malfunction can be recalled from memory using the impulse counter scan tool with the engine off and the ignition ON. Numbers ranging from 1 to 41 may appear on the display of the impulse counter scan tool. The number 1 indicates: No malfunction recognized in system. All further numbers refer to a particular malfunction source. If there are multiple system malfunctions, the malfunction assigned with the lowest number will be displayed first. See Fig 1 -Fig 3 .
If the DTC readout number indicated first reappears after more than 2 DTC readouts, then no further malfunctions are present in the system. After eliminating all malfunctions, the DTC's must be cleared individually. In case of engine complaints, the DTC memory must be read and the malfunction must be eliminated before proceeding with any additional repairs.