DTC U0232-87: Lost Communication with Side Obstacle Detection Control Module "A" Missing Message; DTC U1236-87: Lost Communication with Cruise Control Front Distance Range Sensor Front Side "B" Missing Message [12/2022 - ]: Procedure
- CONFIRM MODEL
- Choose the model to be inspected.
Result
Result Proceed to w/ Blind Spot Monitor System with Front Cross Traffic Alert A w/ Blind Spot Monitor System without Front Cross Traffic Alert B
Result:
B
See step 22
Result:
A
See step 2
- Choose the model to be inspected.
- CHECK FOR DTCs
- Read each DTC and check the diagnosis pattern using the table below.
Chassis > Front Recognition Camera > Trouble Codes
Pattern DTC output part name
(Display on GTS)Front Recognition Camera Pattern 1 U0232-87 U1236-87 Pattern 2 U0232-87 - Pattern 3 - U1236-87 Result
Result Proceed to Pattern 1 A Pattern 2 B Pattern 3 C
Result:
B
See step 10
Result:
C
See step 14
Result:
A
See step 3
- Read each DTC and check the diagnosis pattern using the table below.
- CHECK CONNECTION OF CONNECTORS
- Check that the connectors are properly connected to the forward recognition camera, blind spot monitor sensor RH (A), front side radar sensor (B) and No. 1 CAN junction terminal.
OK
The connectors are properly connected.
Result
Proceed to OK NG
Result:
NG
CONNECT THE CONNECTORS CORRECTLY
Result:
OK
See step 4
- Check that the connectors are properly connected to the forward recognition camera, blind spot monitor sensor RH (A), front side radar sensor (B) and No. 1 CAN junction terminal.
- CLEAR DTC
Result:
NEXT
See step 5
- CHECK FOR DTCs
Pre-procedure1
- Turn the ignition switch off.
- Turn the ignition switch to ON.
- Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to DTCs are not output A U0232-87 and U1236-87 are output B
Post-procedure1
- None
Result:
A
END
Result:
B
See step 6
- CLEAR DTC
Pre-procedure1
- Disconnect the S7 blind spot monitor sensor RH (A) connector
Post-procedure1
- None
Result:
NEXT
See step 7
- INSPECT BLIND SPOT MONITOR SENSOR RH (A)
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to U0232-87 is output A U0232-87 and U1236-87 are output B
Result:
B
See step 17
Result:
A
See step 8
- Check for DTCs.
- CHECK FOR DTCs (HEALTH CHECK)
- Perform a health check.
OK
There is a response from blind spot monitor sensor LH (B).
Result
Result Proceed to There is a response from blind spot monitor sensor LH (B) A No response from blind spot monitor sensor LH (B) B
Result:
B
GO TO CAN COMMUNICATION SYSTEM
Refer to Blind Spot Monitor Sensor Communication Stop Mode [12/2022 - ]
Result:
A
See step 9
- Perform a health check.
- CHECK FOR DTCs (BLIND SPOT MONITOR SYSTEM))
- Check for DTCs.
Body Electrical > Blind Spot Monitor "B" > Trouble Codes
Result
Result Proceed to U0232-87 is output A U0232-87 is not output B
Result:
A
GO TO BLIND SPOT MONITOR SYSTEM
Result:
B
See step 13
- Check for DTCs.
- CHECK CONNECTION OF CONNECTORS
- Check that the connectors are properly connected to the forward recognition camera and blind spot monitor sensor RH (A).
OK
The connectors are properly connected.
Result
Proceed to OK NG
Result:
NG
CONNECT THE CONNECTORS CORRECTLY
Result:
OK
See step 11
- Check that the connectors are properly connected to the forward recognition camera and blind spot monitor sensor RH (A).
- CLEAR DTC
Result:
NEXT
See step 12
- CHECK FOR DTCs
Pre-procedure1
- Turn the ignition switch off.
- Turn the ignition switch to ON.
- Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to U0232-87 is not output A U0232-87 is output B
Post-procedure1
- None
Result:
A
END
Result:
B
See step 8
- CHECK CAN MAIN WIRE (BLIND SPOT MONITOR SENSOR RH (A))
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the S7 blind spot monitor sensor RH (A) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result S7-3 (CA1P) - S7-2 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE FORWARD RECOGNITION CAMERA
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK CONNECTION OF CONNECTORS
- Check that the connectors are properly connected to the forward recognition camera and front side radar sensor (B).
OK
The connectors are properly connected.
Result
Proceed to OK NG
Result:
NG
CONNECT THE CONNECTORS CORRECTLY
Result:
OK
See step 15
- Check that the connectors are properly connected to the forward recognition camera and front side radar sensor (B).
- CLEAR DTC
Result:
NEXT
See step 16
- CHECK FOR DTCs
Pre-procedure1
- Turn the ignition switch off.
- Turn the ignition switch to ON.
- Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to U1236-87 is not output A U1236-87 is output B
Post-procedure1
- None
Result:
A
END
Result:
B
See step 19
- CLEAR DTC
Pre-procedure1
- Disconnect the A42 front side radar sensor (B) connector.
Post-procedure1
- None
Result:
NEXT
See step 18
- INSPECT FRONT SIDE RADAR SENSOR (B)
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to U1236-87 is output A U0232-87 and U1236-87 are output B
Result:
B
See step 27
Result:
A
See step 19
- Check for DTCs.
- CHECK FOR DTCs (HEALTH CHECK)
- Perform a health check.
OK
There is a response from front side radar sensor (A).
Result
Result Proceed to There is a response from front side radar sensor (A) A No response from front side radar sensor (A) B
Result:
B
GO TO CAN COMMUNICATION SYSTEM
Refer to Front Side Radar Sensor Communication Stop Mode [12/2022 - ]
Result:
A
See step 20
- Perform a health check.
- CHECK FOR DTCs (FRONT SIDE RADAR SENSOR SYSTEM)
- Check for DTCs.
Body Electrical > Front Side Radar "A" > Trouble Codes
Result
Result Proceed to U1236-87 is output A U1236-87 is not output B
Result:
A
GO TO FRONT SIDE RADAR SENSOR SYSTEM
Result:
B
See step 21
- Check for DTCs.
- CHECK CAN MAIN WIRE (FRONT SIDE RADAR SENSOR (B))
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the A42 front side radar sensor (B) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result A42-3 (CA1P) - A42-2 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE FRONT SIDE RADAR SENSOR (B)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK CONNECTION OF CONNECTORS
- Check that the connectors are properly connected to the forward recognition camera and blind spot monitor sensor RH (A).
OK
The connectors are properly connected.
Result
Proceed to OK NG
Result:
NG
CONNECT THE CONNECTORS CORRECTLY
Result:
OK
See step 23
- Check that the connectors are properly connected to the forward recognition camera and blind spot monitor sensor RH (A).
- CLEAR DTC
Result:
NEXT
See step 24
- CHECK FOR DTCs
Pre-procedure1
- Turn the ignition switch off.
- Turn the ignition switch to ON.
- Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to U0232-87 is not output A U0232-87 is output B
Post-procedure1
- None
Result:
A
END
Result:
B
See step 25
- CHECK FOR DTCs (HEALTH CHECK)
- Perform a health check.
OK
There is a response from blind spot monitor sensor LH (B).
Result
Result Proceed to There is a response from blind spot monitor sensor LH (B) A No response from blind spot monitor sensor LH (B) B
Result:
B
GO TO CAN COMMUNICATION SYSTEM
for Gasoline Model: Refer to Blind Spot Monitor Sensor Communication Stop Mode [12/2022 - ]
Result:
A
See step 26
- Perform a health check.
- CHECK FOR DTCs (BLIND SPOT MONITOR SYSTEM))
- Check for DTCs.
Body Electrical > Blind Spot Monitor "B" > Trouble Codes
Result
Result Proceed to U0232-87 is output A U0232-87 is not output B
Result:
A
GO TO BLIND SPOT MONITOR SYSTEM
Result:
B
See step 31
- Check for DTCs.
- CLEAR DTC
Pre-procedure1
- Disconnect the A42 front side radar sensor (B) connector.
Post-procedure1
- None
Result:
NEXT
See step 28
- INSPECT FRONT SIDE RADAR SENSOR (B)
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to U1236-87 is output A U0232-87 and U1236-87 are output B
Result:
B
See step 35
Result:
A
See step 29
- Check for DTCs.
- CHECK FOR DTCs (HEALTH CHECK)
- Perform a health check.
OK
There is a response from front side radar sensor (A).
Result
Result Proceed to There is a response from front side radar sensor (A) A No response from front side radar sensor (A) B
Result:
B
GO TO CAN COMMUNICATION SYSTEM
Refer to Front Side Radar Sensor Communication Stop Mode [12/2022 - ]
Result:
A
See step 30
- Perform a health check.
- CHECK FOR DTCs (FRONT SIDE RADAR SENSOR SYSTEM)
- Check for DTCs.
Body Electrical > Front Side Radar "A" > Trouble Codes
Result
Result Proceed to U1236-87 is output A U1236-87 is not output B
Result:
A
GO TO FRONT SIDE RADAR SENSOR SYSTEM
Result:
B
See step 32
- Check for DTCs.
- CHECK CAN MAIN WIRE (BLIND SPOT MONITOR SENSOR RH (A))
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the S7 blind spot monitor sensor RH (A) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result S7-3 (CA1P) - S7-2 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE BLIND SPOT MONITOR SENSOR RH (A)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
See step 33
- CHECK CAN MAIN WIRE (FRONT SIDE RADAR SENSOR (B))
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the A42 front side radar sensor (B) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result A42-3 (CA1P) - A42-2 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE FRONT SIDE RADAR SENSOR (B)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK CAN MAIN WIRE (FORWARD RECOGNITION CAMERA)
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the U10 forward recognition camera connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result U10-3 (CA3L) - U10-4 (CA3H) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω Ω U10-3 (CA3L) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω U10-4 (CA3H) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω U10-3 (CA3L) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ U10-4 (CA3H) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE FORWARD RECOGNITION CAMERA
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
See step 34
- CHECK CAN MAIN WIRE (NO. 1 CAN JUNCTION TERMINAL)
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the R100 No. 1 CAN junction terminal connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result R100-2 (CANL) - R100-3 (CANH) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω Ω R100-2 (CANL) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω R100-3 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω R100-2 (CANL) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ R100-3 (CANH) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE NO. 1 CAN JUNCTION TERMINAL
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CLEAR DTC
Pre-procedure1
- Disconnect the R36 clearance warning ECU assembly connector.
Post-procedure1
- None
Result:
NEXT
See step 36
- INSPECT CLEARANCE WARNING ECU ASSEMBLY
- Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes
Result
Result Proceed to DTCs are not output A U0232-87 and U1236-87 are output B
Result:
A
REPLACE CLEARANCE WARNING ECU ASSEMBLY
Refer to REMOVAL [12/2022 - ]
Result:
B
See step 37
- Check for DTCs.
- CHECK CAN MAIN WIRE (FORWARD RECOGNITION CAMERA)
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the U10 forward recognition camera connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result U10-3 (CA3L) - U10-4 (CA3H) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω Ω U10-3 (CA3L) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω U10-4 (CA3H) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω U10-3 (CA3L) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ U10-4 (CA3H) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE FORWARD RECOGNITION CAMERA
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
See step 38
- CHECK CAN MAIN WIRE (NO. 1 CAN JUNCTION TERMINAL)
Pre-procedure1
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the R100 No. 1 CAN junction terminal connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result R100-2 (CANL) - R100-3 (CANH) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω Ω R100-2 (CANL) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω R100-3 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher Ω R100-2 (CANL) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ R100-3 (CANH) - +B Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE NO. 1 CAN JUNCTION TERMINAL
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR