Check CAN BUS resistance
WARNING: This page is about a different variant/trim than selected.
- IG "OFF"
- Measure the resistance between P-CAN HIGH and P-CAN LOW terminals of ECM harness connector (Measurement "A")
- Disconnect smart junction box (gateway) connector.
- Measure the resistance between P-CAN HIGH and P-CAN LOW terminals of ECM harness connector (Measurement "B")
Specification:
Smart junction box (gateway) connected: 60 ± 3Ω (Measurement "A")
Smart junction box (gateway) disconnected: 120 ± 3Ω (Measurement "B")
- Is the measured resistance within specification?
YES
- Go to "CHECK SHORT TO GROUND IN CAN BUS " as follows.
NO
- Below 10Ω for both conditions (disconnected, connected): Repair short between CAN BUS lines and go to "VERIFICATION OF VEHICLE REPAIR ".
- 1120Ω for both conditions (disconnected, connected): Go to "Check CAN BUS continuity".
- Infinite Ω for both conditions (disconnected, connected): Repair open in CAN communication circuit between smart junction box (gateway) and ECM.