DESCRIPTION
- The driving support ECU assembly will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 13.
- When the driving support ECU assembly receives a response signal from the ECUs connected to sub bus 13, the driving support ECU assembly recognizes and memorizes that the ECU is connected to sub bus 13. Based on this memorized data, the driving support ECU assembly monitors for malfunctions in the ECUs connected to sub bus 13 when communicating with those ECUs. If the driving support ECU assembly cannot receive response signals from the ECUs that have been memorized as those connected to sub bus 13, the driving support ECU assembly determines that a malfunction exists.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0235 | Lost Communication with Cruise Control Front Distance Range Sensor | No communication from the Millimeter Wave Radar Sensor Assembly continues. | Open or short in sub bus 13 main line or connector Millimeter wave radar sensor assembly Power source circuit of millimeter wave radar sensor assembly Millimeter wave radar sensor assembly ground circuit | HINT: The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13. |
| U1002 | Lost Communication with Gateway Module (Sensor Bus) | The driving support ECU assembly cannot receive signals from all ECUs that have been memorized as those connected to sub bus 13. | Open or short in sub bus 13 main line or connector Driving support ECU assembly Power source circuit of driving support ECU assembly Driving support ECU assembly ground circuit Millimeter wave radar sensor assembly Power source circuit of millimeter wave radar sensor assembly Millimeter wave radar sensor assembly ground circuit | HINT: The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13. |
HINT
The diagnosis procedure is for when DTC U1002 is output by the driving support ECU assembly (Techstream display: Pre-Collision 2).
Scheme 189
- The network gateway ECU will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 2.
- When the network gateway ECU receives a response signal from the ECUs connected to sub bus 2, the network gateway ECU recognizes and memorizes that the ECU is connected to sub bus 2. Based on this memorized data, the network gateway ECU monitors for malfunctions in the ECUs connected to sub bus 2 when communicating with those ECUs. If the network gateway ECU cannot receive response signals from the ECUs that have been memorized as those connected to sub bus 2, the network gateway ECU determines that a malfunction exists.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U1002 | Lost Communication with Gateway Module (Network Gateway ECU) | The network gateway ECU cannot receive signals from all ECUs that have been memorized as those connected to sub bus 2. | Open or short in sub bus 2 main line or connector Open or short in sub bus 2 branch line or connector Network gateway ECU 4WD ECU assembly (for AWD) Absorber control ECU (w/ AVS System) Driving support ECU assembly (w/ Pre-collision system) Clearance warning ECU assembly (w/ Intuitive parking assist system) Option connector (Bus buffer ECU) (w/ Option connector) Lane departure warning camera (w/ Lane departure alert system) Blind spot monitor sensor LH (w/ Blind spot monitor system) Open or short in No. 3 CAN junction connector Open or short in No. 4 CAN junction connector Open or short in No. 8 CAN junction connector Open or short in No. 10 CAN junction connector Open or short in No. 2 CAN junction terminal | HINT: The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2. |
HINT
This diagnosis procedure is for when DTC U1002 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 190
Scheme 191
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U1110 | Lost Communication with Clearance Sonar Module | No communication from the clearance warning ECU assembly continues. | Clearance warning ECU assembly branch line or connector Power source circuit of clearance warning ECU assembly Clearance warning ECU assembly ground circuit Clearance warning ECU assembly | HINT: Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2. |
HINT
This diagnosis procedure is for when DTC U1110 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 192
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U1115 | Lost Communication with Tilt & Telescopic Module | No communication from the multiplex tilt and telescopic ECU continues. | Multiplex tilt and telescopic ECU branch line or connector Power source circuit of multiplex tilt and telescopic ECU Multiplex tilt and telescopic ECU ground circuit Multiplex tilt and telescopic ECU | HINT: Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1. |
HINT
This diagnosis procedure is for when DTC U1115 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 193
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U1117 | Lost Communication with Accessory Gateway | No communication from the option connector (Bus buffer ECU) continues. | Option connector (Bus buffer ECU) branch line or connector Option Connector (bus buffer ECU) | HINT: Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2. |
HINT
This diagnosis procedure is for when DTC U1117 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 194
- The main body ECU (multiplex network body ECU) will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 1.
- When the main body ECU (multiplex network body ECU) receives a response signal from the ECUs connected to sub bus 1, the main body ECU (multiplex network body ECU) recognizes and memorizes that the ECU is connected to sub bus 1. Based on this memorized data, the main body ECU (multiplex network body ECU) monitors for malfunctions in the ECUs connected to sub bus 1 when communicating with those ECUs. If the main body ECU (multiplex network body ECU) cannot receive response signals from the ECUs that have been memorized as those connected to sub bus 1, the main body ECU (multiplex network body ECU) determines that a malfunction exists.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U1002 | Lost Communication with Gateway Module (Main Body ECU) | The main body ECU (multiplex network body ECU) cannot receive signals from all ECUs that have been memorized as those connected to sub bus 1. | Open or short in sub bus 1 main line or connector Open or short in sub bus 1 branch line or connector Main body ECU (multiplex network body ECU) Outer mirror control ECU assembly (for driver side) (w/ Seat position memory system) Outer mirror control ECU assembly (for front passenger side) (w/ Seat position memory system) Front power seat switch LH (w/ Seat position memory system) Multiplex tilt and telescopic ECU (w/ Power tilt and power telescopic system) Open or short in No. 3 CAN junction connector Open or short in No. 4 CAN junction connector Open or short in No. 1 CAN junction terminal | HINT: The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1. |
HINT
This diagnosis procedure is for when DTC U1002 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 195
Scheme 196
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U023A | Lost Communication with Front Camera Module | No communication from the lane departure warning camera continues. | Lane departure warning camera branch line or connector Power source circuit of lane departure warning camera Lane departure warning camera ground circuit Lane departure warning camera | HINT: Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2. |
HINT
The diagnosis procedure is for when DTC U023A is output by the network gateway ECU (Techstream display: Gateway).
Scheme 197
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0233 | Lost Communication with Blind Spot Monitor Master Module | No communication from the blind spot monitor sensor LH continues. | Blind spot monitor sensor LH branch line or connector Power source circuit of blind spot monitor sensor LH Blind spot monitor sensor LH ground circuit Blind spot monitor sensor LH | HINT: Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2. |
HINT
This diagnosis procedure is for when DTC U0233 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 198
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0208 | Lost Communication with "Seat Control Module A" | No communication from the front power seat switch LH continues. | Front power seat switch LH branch line or connector Power source circuit of front power seat switch LH Front power seat switch LH ground circuit Front power seat switch LH | HINT: Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1. |
HINT
This diagnosis procedure is for when DTC U0208 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 199
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0200 | Lost Communication with "Door Control Module B" | No communication from the outer mirror control ECU assembly continues. | Outer mirror control ECU assembly branch line or connector Power source circuit of outer mirror control ECU assembly Outer mirror control ECU assembly ground circuit Outer mirror control ECU assembly | HINT: Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1. |
HINT
This diagnosis procedure is for when DTC U0200 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 200
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0199 | Lost Communication with "Door Control Module A" | No communication from the outer mirror control ECU assembly (for front passenger side) continues. | Outer mirror control ECU assembly (for front passenger side) branch line or connector Power source circuit of outer mirror control ECU assembly (for front passenger side) Outer mirror control ECU assembly (for front passenger side) ground circuit Outer mirror control ECU assembly (for front passenger side) | HINT: Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1. |
HINT
This diagnosis procedure is for when DTC U0199 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 201
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0132 | Lost Communication with Suspension Control ECU | No communication from the absorber control ECU continues. | Absorber control ECU branch line or connector Power source circuit of absorber control ECU Absorber control ECU ground circuit Absorber control ECU | HINT: Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2. As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs. |
HINT
This diagnosis procedure is for when DTC U0132 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 202
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0130 | Lost Communication with VGRS | No communication from the front steering control ECU continues. | Front steering control ECU branch line or connector Power source circuit of front steering control ECU Front steering control ECU ground circuit Front steering control ECU | HINT: As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs. |
HINT
This diagnosis procedure is for when DTC U0130 is output only by the absorber control ECU and skid control ECU (brake actuator assembly).
Scheme 203
See also:
• DIAGNOSIS SYSTEM [04/2013 - ]
• REMOVAL [04/2013 - ]