DESCRIPTION
This DTC is detected if communication is lost with the skid control ECU (brake actuator assembly).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
U0122 |
Lost Communication with Vehicle Dynamics Control Module |
|
CAN communication system |
CAUTION / NOTICE / HINT
HINT:
When the data in the skid control ECU (brake actuator assembly) is being overwritten, a message is displayed on the multi-information display and the 4LO indicator light rapidly blinks due to the 4 wheel drive control ECU detecting a communication malfunction (blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)), but this is not a malfunction.
for 2WD:
When the data in the skid control ECU (brake actuator assembly) is being overwritten, the rear differential lock indicator light may rapidly blink due to the 4 wheel drive control ECU detecting a communication malfunction (blinks at 0.25 second intervals (0.25 seconds on and 0.25 seconds off)), but this is not a malfunction.
PROCEDURE
1. |
PERFORM DTC |
(a) Clear the DTCs (See page ).
(b) Check if the same DTCs are output (See page
).
Result |
Proceed to |
---|---|
DTC is output |
A |
DTC is not output |
B |
A | ![]() |
CHECK CAN COMMUNICATION SYSTEM |
B | ![]() |
USE SIMULATION METHOD TO CHECK |
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CAUTION / NOTICE / HINT
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Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
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