If the relative data in the ECU and ABS(ESP) module doesn't correspond with the data in the 4WD ECU, the 4WD ECU sets P1837 and lets a warning lamp turn on.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Checking ECU and ABS(ESP)'s CAN signal | 1. Open or short in the CAN communication line 2. An error in the ECU, ABS/ESP |
Enable conditions |
•
IG " ON " | |
Threshold value |
•
The 4WD ECU can't senses its vehicle status | |
Detecting time |
•
2 seconds |
