DESCRIPTION
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0104 | No communication from the driving support ECU assembly continues. | Driving support ECU assembly branch line or connector Power source circuit of driving support ECU assembly Driving support ECU assembly ground circuit Driving support ECU assembly |
HINT
This diagnosis procedure is for when DTC U0104 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 138
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0199 | 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
This diagnosis procedure is for when DTC U0199 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 139
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0200 | No communication from the outer mirror control ECU assembly (for driver side) continues. | Outer mirror control ECU assembly (for driver side) branch line or connector Power source circuit of outer mirror control ECU assembly (for driver side) Outer mirror control ECU assembly (for driver side) ground circuit Outer mirror control ECU assembly (for driver side) |
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 140
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0208 | 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
This diagnosis procedure is for when DTC U0208 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 141
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0209 | No communication from the front power seat switch RH continues. | Front power seat switch RH branch line or connector Power source circuit of front power seat switch RH Front power seat switch RH ground circuit Front power seat switch RH |
HINT
This diagnosis procedure is for when DTC U0209 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).
Scheme 142
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0230 | No communication from the luggage closer motor assembly continues. | Luggage closer motor assembly branch line or connector Power source circuit of luggage closer motor assembly Luggage closer motor assembly ground circuit Luggage closer motor assembly |
HINT
This diagnosis procedure is for when DTC U0230 is output by the main body ECU (Techstream display: Main Body).
Scheme 143
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0233 | 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
This diagnosis procedure is for when DTC U0233 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 144
Scheme 145
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0235 | No communication from the millimeter wave radar sensor assembly continues. | Millimeter wave radar sensor assembly branch line or connector Power source circuit of millimeter wave radar sensor assembly Millimeter wave radar sensor assembly ground circuit Millimeter wave radar sensor assembly |
HINT
This diagnosis procedure is for when DTC U0235 is output by the driving support ECU assembly (Techstream display: Pre-Collision 2).
Scheme 146
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U023A | 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
- w/o Pre-collision system: This diagnosis procedure is for when DTC U023A is output by the Gateway of the network gateway ECU (Techstream display: Gateway).
- w/ Pre-collision system: This diagnosis procedure is for when DTC U023A is output by the combination meter assembly (Techstream display: Combination Meter).
Scheme 147
Scheme 148
- 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. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1002 | 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 Seat belt control ECU*1 Driving support ECU assembly*1 Lane departure warning camera*2*3 Blind spot monitor sensor LH*4 Open or short in CAN junction connector RH3 Open or short in CAN No. 2 junction connector*2 Open or short in CAN No. 3 junction connector Open or short in CAN No. 4 junction connector |
- *1: w/ Pre-collision system
- *2: w/o Pre-collision system
- *3: w/ Lane departure alert system
- *4: w/ Blind spot monitor system
HINT
This diagnosis procedure is for when DTC U1002 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 149
Scheme 150
- 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. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1002 | 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 Open or short sub bus 13 branch line or connector Driving support ECU assembly Millimeter wave radar sensor assembly Lane departure warning camera*1 Open or short in CAN No. 2 junction connector |
- *1: w/ Lane departure alert system
HINT
The diagnosis procedure is for when DTC U1002 is output by the driving support ECU assembly (Techstream display: Pre-Collision 2).
Scheme 151
- 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. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1002 | 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) Front power seat switch LH*1 Front power seat switch RH*1 Outer mirror control ECU assembly LH*1 Outer mirror control ECU assembly RH*1 Multiplex tilt and telescopic ECU*2 Luggage closer motor assembly*3 Open or short in CAN junction connector LH2 Open or short in CAN junction connector RH2 Open or short in CAN No. 1 junction connector |
- *1: w/ Seat position memory system
- *2: w/ Power tilt and power telescopic steering column system
- *3: w/ Power trunk lid system
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 152
Scheme 153
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1100 | No communication from the seat belt control ECU continues. | Seat belt control ECU branch line or connector Power source circuit of seat belt control ECU Seat belt control ECU ground circuit Seat belt control ECU |
HINT
This diagnosis procedure is for when DTC U1100 is output by the network gateway ECU (Techstream display: Gateway).
Scheme 154
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1115 | 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
This diagnosis procedure is for when DTC U1115 is output by the main body ECU (Techstream display: Main Body).
Scheme 155
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Skid Control ECU Communication Stop Mode | Either condition is met: "Skid Control (ABS/VSC/TRAC)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Skid Control ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Brake actuator assembly branch line or connector Power source circuit of brake actuator assembly Brake actuator assembly ground circuit Brake actuator assembly |
Scheme 156
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Clearance Warning ECU Communication Stop Mode | Either condition is met: "Clearance Warning (Intuitive Parking Assist1)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Clearance Warning ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | 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 |
Scheme 157
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Air Conditioning Amplifier Communication Stop Mode | Either condition is met: "Air Conditioning Amplifier" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Air Conditioning Amplifier Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Air conditioning amplifier assembly branch line or connector Power source circuit of air conditioning amplifier assembly Air conditioning amplifier assembly ground circuit Air conditioning amplifier assembly |
Scheme 158
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Power Steering ECU Communication Stop Mode | Either condition is met: "Power Steering (EPS)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Power Steering ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Power steering ECU with motor assembly branch line or connector Power source circuit of power steering ECU with motor assembly Power steering ECU with motor assembly ground circuit Power steering ECU with motor assembly |
Scheme 159
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Gateway ECU Communication Stop Mode | Either condition is met: "CAN Gateway1" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Gateway ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Network gateway ECU branch line or connector Power source circuit of network gateway ECU Network gateway ECU ground circuit Network gateway ECU |
Scheme 160
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Steering Angle Sensor Communication Stop Mode | Either condition is met: "Spiral cable (Steering Angle Sensor)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Steering Angle Sensor Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Steering sensor branch line or connector Power source circuit of steering sensor Steering sensor ground circuit Steering sensor |
Scheme 161
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| ECM Communication Stop Mode | Either condition is met: "ECM (Engine) and TCM" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "ECM Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Power source circuit of ECM ECM main line or connector ECM ground circuit ECM |
Scheme 162
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Main Body ECU Communication Stop Mode | Either condition is met: "Main Body" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Main Body ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Main body ECU (multiplex network body ECU) branch line or connector Power source circuit of main body ECU (multiplex network body ECU) or Instrument panel junction block assembly Main body ECU (multiplex network body ECU) ground circuit or instrument panel junction block assembly Main body ECU (multiplex network body ECU) or instrument panel junction block assembly |
Scheme 163
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Combination Meter ECU Communication Stop Mode | Either condition is met: "Combination Meter" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Combination Meter ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Combination meter assembly main line or connector Power source circuit of combination meter assembly Combination meter assembly ground circuit Combination meter assembly |
Scheme 164
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Certification ECU Communication Stop Mode | Either condition is met: "Certification (Smart)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Certification ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Certification ECU (Smart key ECU assembly) branch line or connector Power source circuit of certification ECU (smart key ECU assembly) Certification ECU (Smart key ECU assembly) ground circuit Certification ECU (Smart key ECU assembly) |
Scheme 165
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Center Airbag Sensor Communication Stop Mode | Either condition is met: "Airbag" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Center Airbag Sensor Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Airbag sensor assembly branch line or connector Power source circuit of airbag sensor assembly Airbag sensor assembly ground circuit Airbag sensor assembly |
Scheme 166
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Multi-media Module Receiver Assembly Communication Stop Mode | Either condition is met: "Display and Navigation (AVN1)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Navigation ECU Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Multi-media module receiver assembly branch line or connector Power source circuit of multi-media module receiver assembly Multi-media module receiver assembly ground circuit Multi-media module receiver assembly |
Scheme 167
| Detection Item | Symptom | Trouble Area |
|---|---|---|
| Audio Receiver Assembly Communication Stop Mode | Either condition is met: "Display and Navigation (AVN1)" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Audio Receiver Assembly Communication Stop Mode" in "DTC Combination Table". Refer to DIAGNOSIS SYSTEM [06/2012 - ] | Radio receiver assembly branch line or connector Power source circuit of radio receiver assembly Radio receiver assembly ground circuit Radio receiver assembly |
Scheme 168
There may be an open circuit in one of the V bus main lines and/or a DLC3 branch line when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 ohms or higher.
| Symptom | Trouble Area |
|---|---|
| Resistance between terminals 6 (CANH) and 14 (CANL) of DLC3 is 70 ohms or higher. | DLC3 branch line or connector CAN main bus line or connector ECM Combination meter assembly CAN junction connector LH1 CAN junction connector RH1 |
This malfunction is not related to the lines of a CAN main bus branch or to ECUs or sensors connected a CAN main bus branch.
Scheme 169
There may be a short circuit between the V bus main lines and/or CAN branch lines when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 54 ohms.
| Symptom | Trouble Area |
|---|---|
| Resistance between terminals 6 (CANH) and 14 (CANL) of DLC3 is below 54 ohms. | Short in CAN main bus line Short in CAN branch line Combination meter assembly Power steering ECU with motor assembly Main body ECU (Multiplex network body ECU) Steering sensor Airbag sensor assembly ECM Brake actuator assembly (Skid control ECU) Air conditioning amplifier assembly Certification ECU (Smart key ECU assembly) Network gateway ECU*1 Multi-media module receiver assembly*2*3 Radio receiver assembly*4 Clearance warning ECU assembly*5 CAN junction connector LH1 CAN junction connector RH1 |
- *1: w/ Blind spot monitor system or lane departure alert system
- *2: w/ Navigation system
- *3: w/ Audio and visual system (w/ multi-display with parking assist monitor system)
- *4: w/ Audio and visual system (w/ multi-display without parking assist monitor system)
- *5: w/ Intuitive parking assist system
Scheme 170
Scheme 171
There may be a short circuit between one of the CAN bus lines and +B when no resistance exists between terminals 6 (CANH) and 16 (BAT) or 14 (CANL) and 16 (BAT) of the DLC3.
| Symptom | Trouble Area |
|---|---|
| No resistance exists between terminals 6 (CANH) and 16 (BAT) or 14 (CANL) and 16 (BAT) of DLC3. | Short in CAN main bus line Short in CAN branch line Combination meter assembly Power steering ECU with motor assembly Main body ECU (Multiplex network body ECU) Steering sensor Airbag sensor assembly ECM Brake actuator assembly (Skid control ECU) Air conditioning amplifier assembly Certification ECU (Smart key ECU assembly) Network gateway ECU*1 Multi-media module receiver assembly*2*3 Radio receiver assembly*4 Clearance warning ECU assembly*5 CAN junction connector LH1 CAN junction connector RH1 |
- *1: w/ Blind spot monitor system or lane departure alert system
- *2: w/ Navigation system
- *3: w/ Audio and visual system (w/ multi-display with parking assist monitor system)
- *4: w/ Audio and visual system (w/ multi-display without parking assist monitor system)
- *5: w/ Intuitive parking assist system
There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminals 6 (CANH) and 4 (CG) or 14 (CANL) and 4 (CG) of the DLC3.
| Symptom | Trouble Area |
|---|---|
| No resistance exists between terminals 6 (CANH) and 4 (CG) or 14 (CANL) and 4 (CG) of DLC3. | Short in CAN main bus line Short in CAN branch line Combination meter assembly Power steering ECU with motor assembly Main body ECU (Multiplex network body ECU) Steering sensor Airbag sensor assembly ECM Brake actuator assembly (Skid control ECU) Air conditioning amplifier assembly Certification ECU (Smart key ECU assembly) Network gateway ECU*1 Multi-media module receiver assembly*2*3 Radio receiver assembly*4 Clearance warning ECU assembly*5 CAN junction connector LH1 CAN junction connector RH1 |
- *1: w/ Blind spot monitor system or lane departure alert system
- *2: w/ Navigation system
- *3: w/ Audio and visual system (w/ multi-display with parking assist monitor system)
- *4: w/ Audio and visual system (w/ multi-display without parking assist monitor system)
- *5: w/ Intuitive parking assist system
If an ECU or sensor is not displayed on the CAN Bus Check screen of the Techstream and some ECUs and sensors repeatedly appear and disappear from the screen when the CAN main bus lines are normal (there is no open, short, short to +B or short to GND in the main bus lines), there may be an open circuit in either of the lines in a CAN branch.
HINT
If some ECUs and sensors repeatedly appear and disappear from the CAN Bus Check screen, communication between the normal ECUs (sensors) and the Techstream may be affected by the incomplete signals that are output from the ECU that has an open circuit in either of the lines in its CAN branch. In this case, the CAN branch lines for the ECUs and sensors that repeatedly appear and disappear from the screen are normal and the ECU that is not displayed on the screen may be the main cause of the problem (this ECU may have an open circuit in either of the lines in its CAN branch).
| Symptom | Trouble Area |
|---|---|
| 2 or more ECUs and/or sensors do not appear on the Techstream CAN Bus Check screen. | One side of CAN branch line is open, or output signals are incomplete. Combination meter assembly Power steering ECU with motor assembly Main body ECU (Multiplex network body ECU) Steering sensor Airbag sensor assembly ECM Brake actuator assembly (Skid control ECU) Air conditioning amplifier assembly Certification ECU (Smart key ECU assembly) Network gateway ECU*1 Multi-media module receiver assembly*2*3 Radio receiver assembly*4 Clearance warning ECU assembly*5 |
- *1: w/ Blind spot monitor system or lane-keeping assist system
- *2: w/ Navigation system
- *3: w/ Audio and visual system (w/ multi-display with parking assist monitor system)
- *4: w/ Audio and visual system (w/ multi-display without parking assist monitor system)
- *5: w/ Intuitive parking assist system