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
Result |
Proceed to |
---|---|
DTC is output |
A |
DTC is not output |
B |
A |
CHECK CAN COMMUNICATION SYSTEM |
B |
USE SIMULATION METHOD TO CHECK |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
(a) Using a dial indicator, measure the inside diameter of the front
oil pump body sub-assembly bushing.
Maximum inside diameter:
38.138 mm (1.50 in.)
If the inside diameter is more than the maximum inside d ...
Lost Communication with HMI-LAN (B150A)
DESCRIPTION
The combination meter assembly receives a text data signal from the navigation
receiver assembly or radio and display receiver assembly via local bus communication.
Based on this signal, navigation system information is displayed on the multi-information
display.
This DTC is store ...