DESCRIPTION The absorber
control ECU receives signals from the ECM, skid control ECU (brake
actuator assembly), airbag ECU assembly and steering sensor via CAN
communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first. |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Warning Indicate | Memory | |
U0100 | Lost Communication With ECM/PCM "A" |
While driving at 30 km/h (19 mph) or more, data is not received via CAN communication for 3 seconds or more. |
- ECM
- CAN communication system
- Absorber control ECU
| Does not come on |
Yes | | U0101 |
Lost Communication with TCM |
While driving at 30 km/h (19 mph) or more, data is not received via CAN communication for 6 seconds or more. |
- ECM
- CAN communication system
- Absorber control ECU
| Does not come on |
Yes | | U0122 |
Lost Communication With Vehicle Dynamics Control Module |
Data is not received from the skid control ECU (brake actuator assembly) via CAN communication for 3 seconds or more. |
- Skid control ECU (brake actuator assembly)
- CAN communication system
- Absorber control ECU
| Does not come on |
Yes | | U0124 |
Lost Communication with Lateral Acceleration Sensor Module |
Data is not received from the airbag ECU assembly via CAN communication for 3 seconds or more. |
- Airbag ECU assembly
- CAN communication system
- Absorber control ECU
| Does not come on |
Yes | | U0126 |
Lost Communication with Steering Angle Sensor Module |
Data is not received from the steering sensor via CAN communication for 3 seconds or more. |
- Steering sensor
- CAN communication system
- Absorber control ECU
| Does not come on |
Yes | CAUTION / NOTICE / HINT
NOTICE:
- Before performing troubleshooting, inspect the connectors of related circuits.
- If DTC C1782 (Power Source Voltage Malfunction) is output at the same time, perform troubleshooting for C1782 first.
Click here 
- Before replacing the absorber control ECU, perform all of the following:
- Symptom simulation.
Click here
- DTC inspection.
Click here
- Techstream inspection.
Click here
- If no malfunctions are found in other areas, replace the absorber control ECU.
- After replacing the absorber control ECU with a new one, perform registration of vehicle identification information.
Click here
PROCEDURE (a) Clear the DTCs.
Click here Chassis > Air suspension > Clear DTCs
(b) Turn the engine switch off. (c) Drive the vehicle at a speed of 30 km/h (19 mph) or more for 10 seconds or more.
(d) Check for DTCs. Click here Chassis > Air suspension > Trouble Codes
|
Result | Proceed to | |
CAN DTCs are not output |
A | | CAN DTCs are output |
B | HINT: If
a CAN communication malfunction DTC and a related sensor malfunction
DTC are output at the same time, the CAN communication malfunction must
be repaired before troubleshooting the sensor.
| A |
 | USE SIMULATION METHOD TO CHECK |
| B |
| GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) | |
