DTC U0104-87: Lost Communication with Cruise Control Module Missing Message [09/2020 - ]: Procedure
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- CHECK FOR DTCs
- Read each DTC and check the diagnosis pattern using the table below.
Body Electrical > Front Radar Sensor > Trouble Codes
Body Electrical > Pre-Collision System > Trouble Codes
Chassis > Lane Control > Trouble Codes
Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes
Powertrain > Radar Cruise 2 > Trouble Codes
Pattern DTC output part name
(Display on Techstream)Front Radar Sensor Pre-Collision System Lane Control Forward Recognition Camera (Front Lighting Control) Radar Cruise 2 Pattern 1 U0104-87 U0235-87 U0235-87 U0235-87 U0235-87 Pattern 2 U0104-87 - - - - Result
Result Proceed to Pattern 1 A Pattern 2 B
Result:
A
GO TO PRE-COLLISION SYSTEM. Refer to DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Missing Message [09/2020 - ]
Result:
B
See step 2
- Read each DTC and check the diagnosis pattern using the table below.
- CHECK FORWARD RECOGNITION CAMERA
*a Front view of wire harness connector
(to Millimeter Wave Radar Sensor Assembly)- Disconnect the millimeter wave radar sensor assembly connector.
- Using an oscilloscope, check the waveform.
OK
Tester Connection Condition Tool Setting Specified Condition B10-5 (CA1P) - B10-6 (CA1N) Engine switch on (IG) 1V/DIV., 100μs./DIV. Pulse generation Result
Proceed to OK NG
Result:
OK
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to REMOVAL [09/2020 - ]
Result:
NG
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [09/2020 - ]