Dtc U0100 Lost Communication With Ecm / Pcm A
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK FOR DTC
DTC U0100 Lost Communication with ECM / PCM "A"
DESCRIPTION
The combination meter communicates with the ECM via the CAN line.
DTC Code | DTC Detection Condition | Trouble Area |
U0100 | When the vehicle speed is 5 km/h (3 mph) or more and IG voltage is 10.5 V or more while no communication with the ECM continues for 3 seconds or more (no communication with the ECM or skid control ECU continues for 60 seconds or more). | CAN communication system |
WIRING DIAGRAM

INSPECTION PROCEDURE
Check for DTCs and note any codes that are output ().
Recheck for DTCs ().
ResultResult | Proceed to |
CAN communication system DTC is not output | A |
CAN communication system (for LHD) DTC is output | B |
CAN communication system (for RHD) DTC is output | C |
- If CAN communication system DTC U0100 and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100 first.
| Go to CAN COMMUNICATION SYSTEM ()
|
|
|
| Go to CAN COMMUNICATION SYSTEM ()
|
|
|
A | |
| |
USE SIMULATION METHOD TO CHECK ()
|
|