Lexus NX: Engine ECU Communication (U0100,U0126,U0140,U0163,U0233,U1110)
DESCRIPTION
These DTCs are stored if there is a malfunction in the CAN communication system connected to the rear television camera assembly.
HINT:
If CAN communication system DTCs are stored, they may also be stored in other systems.
- *1: w/ Blind Spot Monitor System
- *2: w/ LEXUS Parking Assist-sensor System
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0100 | Engine ECU Communication | Lost communication with hybrid vehicle control ECU | CAN communication system |
| U0126 | Steering Sensor Communication | Lost communication with steering sensor | CAN communication system |
| U0140 | Lost Communication with Body Control Module | Lost communication with main body ECU (multiplex network body ECU) | CAN communication system |
| U0163 | Lost Communication With Navigation Control Module | Lost communication with radio receiver assembly | CAN communication system |
| U0233 | Lost Communication with Blind Spot Monitor Master Module | Lost communication with blind spot monitor sensor RH*1 | CAN communication system |
| U1110 | Lost Communication with Clearance Sonar Module | Lost communication with clearance warning ECU assembly*2 | CAN communication system |
PROCEDURE
| 1. | CHECK DTC |
(a) Clear the DTCs.
Click here .gif)
(b) Check for DTCs.
Click here
HINT:
- If CAN communication system DTCs are stored, they may also be stored in other systems.
- If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
-
If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTC U0100, U0126, U0140, U0163, U0233 and U1110 are not output | A |
| DTC U0100, U0126, U0140, U0163, U0233 and U1110 is output | B |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | GO TO CAN COMMUNICATION SYSTEM |
READ NEXT:
CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION This DTC is stored when the rear television camera assembly judges that it has an internal CAN malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area U1000
Reverse Signal Circuit
DESCRIPTION The multi-display receives a reverse signal from the BK UP LP relay*1 or clearance warning ECU assembly*2. *1: except 10.3 Inch Display and w/ Intuitive Parking Assist System *2: for 10.3
Image from Camera for Parking Assist Monitor is Abnormal
DESCRIPTION The video signal from the rear television camera assembly is transmitted to the multi-display assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
When the "!" mark is displayed on
SEE MORE:
Hybrid system precautions
Take care when handling the hybrid system, as it is a high voltage
system
(about 650 V at maximum) as well as contains parts that become extremely
hot when the hybrid system is operating. Obey the warning labels attached to
the vehicle.
System components
The illustration is an example for e
Components
COMPONENTS ILLUSTRATION *1 CRANKSHAFT POSITION SENSOR *2 CYLINDER HEAD COVER SUB-ASSEMBLY *3 ENGINE MOUNTING BRACKET RH *4 IGNITION COIL ASSEMBLY *5 CYLINDER HEAD COVER GASKET *6 GASKET *7 SEAL WASHER - N*m (kgf*cm, ft.*lbf): Specified torque ●
