Scantool Diagnostics

Instrument Panel Module
B1625 ECM Communication Data Failure - Scantool Diagnostics

Scantool Data Analysis

1. IG "ON" & ENG "OFF"
2. After connect GDS, select "Oscilloscope" mode.
3. Measure the signal waveform on IPM and ECM Serial Communication line.




Fig.1) IPM and ECM Serial Communication signal waveform
4. Does the measured signal waveform follow the specification?