Dtc U0100 Lost Communication With Ecm / Pcm
DESCRIPTION
INSPECTION PROCEDURE
CHECK FOR DTC
DTC U0100 Lost Communication with ECM / PCM |
DTC U0129 Lost Communication with Brake System Control Module |
DTC U0142 Lost Communication with Main Body ECU |
DTC U0155 Lost Communication with Combination Meter |
DESCRIPTION
The power management control ECU receives information from 2 sources. It receives information via a direct line and via the CAN communication line. If the information from these 2 sources is inconsistent, this DTC is stored.- HINT:
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode is reset to on (IG). When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
DTC Code
| DTC Detection Condition
| Trouble Area
|
U0100
| There is no communication from the ECM.
| - CAN communication system
- ECM
|
U0129
| There is no communication from the skid control ECU.
| - CAN communication system
- Skid control ECU
|
U0142
| There is no communication from the main body ECU.
| - CAN communication system
- Main body ECU (Driver side junction block assembly)
|
U0155
| There is no communication from the combination meter.
| - CAN communication system
- Combination meter assembly
|
INSPECTION PROCEDURE
Check for DTCs and note any codes that are output (LandCruiser RM000000YEH0GKX.html).
Clear the DTCs (LandCruiser RM000000YEH0GKX.html).
Recheck for DTCs (LandCruiser RM000000YEH0GKX.html).
ResultResult
| Proceed to
|
DTC is not output
| A
|
DTC is output
| for LHD with Entry and Start System
| B
|
for RHD with Entry and Start System
| C
|