DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication With Vehicle Dynamics Control Module [08/2019 - ]: Description
This DTC is output when communication is lost with the skid control ECU (master cylinder solenoid) or ECM.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
| U0100 |
Lost Communication with ECM / PCM "A" |
- Engine switch turned on (IG) (3 seconds elapse after engine switch is turned on (IG))
- Communication is lost between ECM and 4 wheel drive control ECU
- 5.12 seconds or more when transfer is switching between high and low
- 1 trip detection logic
|
CAN communication system |
| U0122 |
Lost Communication With Vehicle Dynamics Control Module |
- Engine switch turned on (IG) (3 seconds elapse after engine switch is turned on (IG))
- Communication is lost between skid control ECU and 4 wheel drive control ECU
- 0.72 seconds or more when transfer is switching between high and low, when center differential is switching between free and lock.
- 1 trip detection logic
|
CAN communication system |