6, Computer output circuit
7-8, Transmission
5.5.1.5.4 Fourth and Fifth DTC Character
The fourth and fifth DTC codes are two-digit numbers from 0 to 99, known as the
"Specific Fault Index." It identifies the exact malfunction that a vehicle has.
5.5.3 Clear Trouble Code(Mode $04)
This option is designed to erase all emission-related diagnostic data stored in the
memory of the selected ECM. This includes Diagnostic Trouble Codes (DTCs), freeze
frame data, and test results. While OBD-II/EOBD displays generic data only, clearing
codes removes all stored information, including any enhanced codes and freeze
frame details.
When you select the clear codes function, a confirmation screen appears to prevent
accidental data loss. You must choose "Yes" on the confirmation screen to proceed
with the operation.
5.5.4 Live Data(Mode $01)
Use this function to view current emission-related data from the selected electronic
control module (ECM) of the vehicle. The main screen layout consists of two primary
columns: the left-hand column provides descriptions of each parameter, while the
right-hand column displays the corresponding parameter values along with their
units or states.
5.5.4.1 View Waveform Chart
Click the circled area in the diagram to view the waveform chart for each data
stream.
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