DTC U1102 Lost Communication with Radar Sensor
DESCRIPTION
The laser sensor and distance control ECU transmit the data for general vehicle control and diagnosis function along the communication line. The distance control ECU determines the curve radius information based on signals from the steering wheel and yaw rate sensor. The distance control ECU transmits the current vehicle speed and curve radius information to the laser sensor.
DTC No. |
DTC Detection Condition |
Trouble Area |
U1102 |
The ECM detects a communication error signal (from the distance control ECU to the laser sensor) for 0.15 sec. or more while the dynamic laser cruise control is in operation |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
1 CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - LASER SENSOR)
Standard resistance
2 CHECK DISTANCE CONTROL ECU
Standard voltage
3 CHECK DTC OUTPUT
Result
END (INTERMITTENT PROBLEM IS PRESENT)
Power seat switch
Inspection
1. INSPECT FRONT POWER SEAT SWITCH
Inspect the driver side power seat switch.
Measure the resistance according to the
value(s) in the table below.
Standard resistance:
Slide switch
Front vertical switch
Lifter switch
Reclining switch
If the res ...
Terminals of ECU
1. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Disconnect the 1C, 1J, 1L, 1K, 1P, B6, B7 and B9 J/
B connectors.
Measure the voltage and resistance according to
the value(s) in the table below.
Standard
HINT:
If the result is not as specified ...
Cold Start Ignition Timing Performance
DESCRIPTION
This monitor will run when the engine is started at -10 to 50°C (14 to 122°F)
of the engine coolant
temperature. The DTC will set after the engine idling for 13 seconds (2 trip
detection logic).
The DTC is designed to monitor the idle air control at cold start. When the
...