- Short to ground
- +B short
| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000012VFM |
| Model Year Start: 2018 | Model: Camry | Prod Date Range: [03/2017 - 06/2017] |
| Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: U0232; Lost Communication with Blind Spot Monitor Slave Module; 2018 MY Camry [03/2017 - 06/2017] | ||
|
DTC |
U0232 |
Lost Communication with Blind Spot Monitor Slave Module |
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH judges that there is a communication problem with the blind spot monitor sensor LH.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
U0232 |
Lost Communication with Blind Spot Monitor Slave Module |
The blind spot monitor sensor (master) cannot receive signals from the blind spot monitor sensor (slave) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When checking for DTCs, make sure that the blind spot monitor system is turned on.
- Inspect the fuses for circuits related to this system before performing the following procedure.
- Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
-
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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HINT:
- Operating the ignition 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 CAN BUS MAIN WIRE |
(a) Turn the ignition switch off
(b) Disconnect the cable from the negative (-) battery terminal.
|
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(d) Reconnect the cable to the negative (-) battery terminal.
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
Open circuit in CAN main bus lines |
B |
|
Short circuit between bus lines |
C |
|
|
D |
| B |
|
| C |
|
| D |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BODY GROUND) |
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| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - POWER SOURCE) |
Click here
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK DTC |
(a) Turn the ignition switch off
(b) Turn the ignition switch to ON.
(c) Check for DTCs.
Body Electrical > Blind Spot Monitor Master > Trouble Codes
OK:
No DTCs are output.
| OK |
|
| NG |
|
|
5. |
CHECK FOR OPEN IN CAN BUS MAIN WIRE (BLIND SPOT MONITOR SENSOR LH) |
(a) Disconnect the cable from the negative (-) battery terminal.
|
(b) Disconnect the W6 blind spot monitor sensor LH connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
W6-1 (CA2P) -W6-6 (CA2N) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
|
|
|
6. |
CHECK FOR OPEN IN CAN BUS MAIN WIRE (BLIND SPOT MONITOR SENSOR RH) |
(a) Reconnect the W6 blind spot monitor sensor LH connector.
|
(b) Disconnect the W5 blind spot monitor sensor RH connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
W5-1 (CA2P) - W5-6 (CA2N) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BLIND SPOT MONITOR SENSOR LH) |
|
7. |
CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH) |
(a) Disconnect the cable from the negative (-) battery terminal.
|
(b) Disconnect the W6 blind spot monitor sensor LH connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
W6-1 (CA2P) -W6-6 (CA2N) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
|
|
|
8. |
CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH) |
(a) Reconnect the W6 blind spot monitor sensor LH connector.
|
(b) Disconnect the W5 blind spot monitor sensor RH connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
W5-1 (CA2P) - W5-6 (CA2N) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BLIND SPOT MONITOR SENSOR LH) |
|
9. |
CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the W6 blind spot monitor sensor LH connector.
|
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK |
|
|
|
10. |
CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH) |
(a) Disconnect the W5 blind spot monitor sensor RH connector.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BLIND SPOT MONITOR SENSOR LH) |
|
|