Toyota Camry (XV70): Lost Communication with Blind Spot Monitor Master Module (U0233)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
U0233 | Lost Communication with Blind Spot Monitor Master Module |
The blind spot monitor sensor (slave) cannot receive signals from the blind spot monitor sensor (master) |
|
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
HINT:
- Operating the engine switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
- Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
PROCEDURE
|
1. | CHECK DTC OUTPUT |
(a) Turn the engine switch off.
(b) Turn the engine switch on (IG).
(c) Clear the DTCs.
Body Electrical > Blind Spot Monitor Slave > Clear DTCs(d) Check for DTCs.
Body Electrical > Blind Spot Monitor Slave > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTC U0233 is output | A |
|
No DTCs are output | B |
| B |
.gif) | USE SIMULATION METHOD TO CHECK
|
|
.gif)
| 2. |
REPLACE BLIND SPOT MONITOR SENSOR RH |
Click here
.gif)
|
| 3. |
CHECK DTC OUTPUT |
(a) Check for DTCs.
Body Electrical > Blind Spot Monitor Slave > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTC U0233 is output | A |
|
No DTCs are output | B |
| A |
| REPLACE BLIND SPOT MONITOR SENSOR LH
|
| B |
| END (BLIND SPOT MONITOR SENSOR RH WAS DEFECTIVE) |
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CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
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Precaution
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NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.
System Name See Procedure
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