DTC U0073/94, U0100/65, U0123/62, U0124/95, U0126/63: Control Module Communication Bus OFF; Lost Communication with ECM/PCM; Lost Communication with Yaw Rate Sensor Module; Lost Communication with Lateral Acceleration Sensor Module; Lost Communication with Steering Angle Sensor Module: Description
The skid control ECU receives the signals from the ECM, steering angle sensor, and yaw rate and acceleration sensor via the CAN communication system.
DTC DETECTION CONDITION TABLE
| DTC No. |
DTC Detection Condition |
Trouble Area |
| U0073/94 |
When any of the following is detected:
- With the IG1 terminal voltage 10 V or more, after the output of data from the skid control ECU is completed, the sending continues for 5 seconds or more.
- With the IG1 terminal voltage 10 V or more, the condition that bus OFF state occurs once or more within 100 ms occurs 10 times in succession. (Sent signals cannot be received.)
- With the IG1 terminal voltage 10 V or more, a delay in receiving data from the yaw rate and acceleration sensor and steering angle sensor continues for 1 second or more.
- With the IG1 terminal voltage 10 V or more, the condition that a delay in receiving data from the yaw rate and acceleration sensor occurs more than once within 5 seconds occurs 10 times in succession.
|
CAN communication system |
| U0100/65 |
When either of the following is detected:
- With the IG1 terminal voltage 10 V or more and the vehicle speed 9 mph (15 km/h) or more, data cannot be sent to the ECM for 2 seconds or more.
- With the IG1 terminal voltage 10 V or more and the vehicle speed 9 mph (15 km/h) or more, data cannot be received from the ECM for 2 seconds or more.
|
CAN communication system (Skid control ECU to ECM) |
| U0123/62 |
When either of the following is detected:
- With the IG1 terminal voltage 10 V or more, data from the yaw rate sensor cannot be received for 1 second or more.
- With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.
- The condition that data from the yaw rate sensor cannot be received occurs once or more within 5 seconds.
|
CAN communication system (Skid control ECU to yaw rate and acceleration sensor) |
| U0124/95 |
When either of the following is detected:
- With the IG1 terminal voltage 10 V or more, data from the acceleration sensor cannot be received for 1 second or more.
- With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.
- The condition that data from the acceleration sensor cannot be received occurs once or more within 5 seconds.
|
CAN communication system (Skid control ECU to yaw rate and acceleration sensor) |
| U0126/63 |
When either of the following is detected:
- With the IG1 terminal voltage 10 V or more, data from the steering angle sensor cannot be received for 1 second or more.
- With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.
- The condition that data from the steering angle sensor cannot be received occurs once or more within 5 seconds.
|
CAN communication system (Skid control ECU to steering angle sensor) |