Toyota Camry (XV70): Software Incompatibility with Brake System Control Module Invalid/Incompatible Software Component (U031857)
DESCRIPTION
If the vehicle information stored in the forward recognition camera does not match the vehicle information sent from the skid control ECU (brake actuator assembly), the forward recognition camera stores DTC U031857.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
DTC Output from |
|---|---|---|---|---|
|
U031857 | Software Incompatibility with Brake System Control Module Invalid/Incompatible Software Component |
The vehicle information sent from the skid control ECU (brake actuator assembly) does not match that stored in the forward recognition camera. |
| Radar Cruise2 |
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the forward recognition camera, replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored.
- When the forward recognition camera is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.
HINT:
Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.
One Time Recognition: Click here
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Sequential Recognition: Click here
Driving Adjustment: Click here
PROCEDURE
|
1. | CHECK FOR DTCs |
(a) Check for vehicle stability control system DTCs.
Chassis > Brake > Trouble Codes|
Result | Proceed to |
|---|---|
|
Vehicle stability control system DTCs are not output |
A |
| Vehicle stability control system DTCs are output |
B |
| A |
.gif) | REPLACE FORWARD RECOGNITION CAMERA |
| B |
| GO TO VEHICLE STABILITY CONTROL SYSTEM w/ Electric Parking Brake System: Click here
w/o Electric Parking Brake System: Click here
|
READ NEXT:
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DESCRIPTION If the forward recognition camera cannot verify the vehicle information sent from the main body ECU (multiplex network body ECU), the forward recognition camera stores DTC U032251.
D
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DESCRIPTION If the vehicle information stored in the forward recognition camera does not match the vehicle information sent from the main body ECU (multiplex network body ECU), the forward recognition
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DTC No. Detection Item
DTC Detection Condition Trouble Area
DTC Output from
U
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during shift paddle switch (transmission shift switch assembly) removal/installation are shown below. Necessa
Pressure Control Solenoid "A" Circuit Short to Ground or Open (P074514)
DESCRIPTION Refer to DTC P074512. Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Memory
Note P074514
Pressure Control Solenoid "A" Circuit Short to Ground or Open
While the vehicle is being driven so that gear changes occur,
