Can Bus Signal Diagnostic - Geely EC718 2009 Workshop Manual

11-522 Data Communication System Body Electric
Harness Maximum Repair Size: 50 mm (1.97 in)
Harness Repair Interval: >100 mm (3.94 in)
FE11-1505b

11.17.7.6 CAN Bus Signal Diagnostic

Use the oscilloscope dual-channel input to monitor the signal on the CAN bus, the signal should have the following features:
1. CAN_H bus voltage signal is 2.5-3.5 V, CAN_L bus voltage signal is 1.5-2.5 V.
2. Two signals mirror each other.
3. Signals start to transfer with the ignition switch is turned to on, but stops 2 s after the ignition is switched off.
EC718/EC718RV EC715/EC715RV 10/2009