DESCRIPTION
| DTC Code | DTC Detection Condition | Trouble Area |
|---|
| U0100 | There is no communication from the ECM. | Power source or inside ECM ECM CAN main wire or connector ECM |
Scheme 51
Scheme 51: WIRING DIAGRAM
| DTC Code | DTC Detection Condition | Trouble Area |
|---|
| U0100 | There is no communication from the ECM. | Power source or inside ECM ECM CAN main wire or connector ECM |
| Detection Item | Symptom | Trouble Area |
|---|
| Skid Control ECU Communication Stop Mode | Either condition is met: "Skid Control (AB S/VSC/TRAC)" is not displayed on "Bus Check". "Skid Control ECU Communication Stop Mode" in "DTC Communication Table" applies. | Power source or inside brake actuator assembly (skid control ECU) Brake actuator assembly (skid control ECU) CAN branch wire or connector Brake actuator assembly (skid control ECU) |
Scheme 52
Scheme 52: WIRING DIAGRAM
| Detection Item | Symptom | Trouble Area |
|---|
| Skid Control ECU Communication Stop Mode | Either condition is met: "Skid Control (AB S/VSC/TRAC)" is not displayed on "Bus Check". "Skid Control ECU Communication Stop Mode" in "DTC Communication Table" applies. | Power source or inside brake actuator assembly (skid control ECU) Brake actuator assembly (skid control ECU) CAN branch wire or connector Brake actuator assembly (skid control ECU) |
| Detection Item | Symptoms | Trouble Area |
|---|
| Air Conditioning Amplifier Communication Stop Mode | Either condition is met: "Air Conditioning Amplifier" is not displayed on "Bus Check". "Air Conditioning Amplifier Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside air conditioning amplifier assembly Air conditioning amplifier assembly CAN branch wire or connector Air conditioning amplifier assembly |
Scheme 53
Scheme 53: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Air Conditioning Amplifier Communication Stop Mode | Either condition is met: "Air Conditioning Amplifier" is not displayed on "Bus Check". "Air Conditioning Amplifier Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside air conditioning amplifier assembly Air conditioning amplifier assembly CAN branch wire or connector Air conditioning amplifier assembly |
| Detection Item | Symptoms | Trouble Area |
|---|
| Power Steering ECU Communication Stop Mode | Either condition is met: "Power Steering (EPS)" is not displayed on "Bus Check". "Power Steering ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside power steering ECU assembly Power steering ECU assembly CAN branch wire or connector Power steering ECU assembly |
Scheme 54
Scheme 54: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Power Steering ECU Communication Stop Mode | Either condition is met: "Power Steering (EPS)" is not displayed on "Bus Check". "Power Steering ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside power steering ECU assembly Power steering ECU assembly CAN branch wire or connector Power steering ECU assembly |
| Detection Item | Symptoms | Trouble Area |
|---|
| Steering Angle Sensor Communication Stop Mode | Either condition is met: "Spiral cable (Steering Angle Sensor)" is not displayed on "Bus Check". "Steering Angle Sensor Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside spiral with sensor cable sub-assembly (steering angle sensor) Spiral with sensor cable sub-assembly (steering angle sensor) CAN branch wire or connector Spiral with sensor cable sub-assembly (steering angle sensor) |
Scheme 55
Scheme 55: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Steering Angle Sensor Communication Stop Mode | Either condition is met: "Spiral cable (Steering Angle Sensor)" is not displayed on "Bus Check". "Steering Angle Sensor Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside spiral with sensor cable sub-assembly (steering angle sensor) Spiral with sensor cable sub-assembly (steering angle sensor) CAN branch wire or connector Spiral with sensor cable sub-assembly (steering angle sensor) |
| Detection Item | Symptoms | Trouble Area |
|---|
| ECM Communication Stop Mode | Either condition is met: "ECM (Engine)" is not displayed on "Bus Check". "ECM Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside ECM ECM |
Scheme 56
Scheme 56: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| ECM Communication Stop Mode | Either condition is met: "ECM (Engine)" is not displayed on "Bus Check". "ECM Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside ECM ECM |
| Detection Item | Symptoms | Trouble Area |
|---|
| Main Body ECU Communication Stop Mode | Either condition is met: "Main Body" is not displayed on "Bus Check". "Main Body ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside main body ECU (multiplex network body ECU) Main body ECU (multiplex network body ECU) CAN branch wire or connector Main body ECU (multiplex network body ECU) |
Scheme 57
Scheme 57: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Main Body ECU Communication Stop Mode | Either condition is met: "Main Body" is not displayed on "Bus Check". "Main Body ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside main body ECU (multiplex network body ECU) Main body ECU (multiplex network body ECU) CAN branch wire or connector Main body ECU (multiplex network body ECU) |
| Detection Item | Symptoms | Trouble Area |
|---|
| Power Source Control ECU Communication Stop Mode | Either condition is met: "Power Management1" is not displayed on "Bus Check". "Power Source Control ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside power source control ECU Power source control ECU CAN branch wire or connector Power source control ECU |
For vehicles with a smart key system.
Scheme 58
Scheme 58: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Power Source Control ECU Communication Stop Mode | Either condition is met: "Power Management1" is not displayed on "Bus Check". "Power Source Control ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside power source control ECU Power source control ECU CAN branch wire or connector Power source control ECU |
For vehicles with a smart key system.
| Detection Item | Symptoms | Trouble Area |
|---|
| Combination Meter ECU Communication Stop Mode | Either condition is met: "Combination Meter" is not displayed on "Bus Check". "Combination Meter ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside combination meter assembly Combination meter assembly |
Scheme 59
Scheme 59: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Combination Meter ECU Communication Stop Mode | Either condition is met: "Combination Meter" is not displayed on "Bus Check". "Combination Meter ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside combination meter assembly Combination meter assembly |
| Detection Item | Symptoms | Trouble Area |
|---|
| Certification ECU Communication Stop Mode | Either condition is met: "Certification (Smart)" is not displayed on "Bus Check". "Certification ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly) CAN branch wire or connector Certification ECU (smart key ECU assembly) |
For vehicles with a smart key system.
Scheme 60
Scheme 60: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Certification ECU Communication Stop Mode | Either condition is met: "Certification (Smart)" is not displayed on "Bus Check". "Certification ECU Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly) CAN branch wire or connector Certification ECU (smart key ECU assembly) |
For vehicles with a smart key system.
| Detection Item | Symptoms | Trouble Area |
|---|
| Center Airbag Sensor Communication Stop Mode | Either condition is met: "Airbag" is not displayed on "Bus Check". "Center Airbag Sensor Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside airbag sensor assembly Airbag sensor assembly CAN branch wire or connector Airbag sensor assembly |
Scheme 61
Scheme 61: WIRING DIAGRAM
| Detection Item | Symptoms | Trouble Area |
|---|
| Center Airbag Sensor Communication Stop Mode | Either condition is met: "Airbag" is not displayed on "Bus Check". "Center Airbag Sensor Communication Stop Mode" in "DTC Combination Table" applies. | Power source or inside airbag sensor assembly Airbag sensor assembly CAN branch wire or connector Airbag sensor assembly |
There may be an open circuit in the CAN main wire and/or DLC3 CAN branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 ohms or higher.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 ohms or higher. | CAN main wire and connector No. 1 junction connector No. 2 junction connector ECM Combination meter assembly DLC3 CAN branch wire or connector |
Scheme 62
Scheme 62: WIRING DIAGRAM
There may be an open circuit in the CAN main wire and/or DLC3 CAN branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 ohms or higher.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 ohms or higher. | CAN main wire and connector No. 1 junction connector No. 2 junction connector ECM Combination meter assembly DLC3 CAN branch wire or connector |
There may be a short circuit between the CAN bus lines when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 53 ohms.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 53 ohms. | Short between CAN bus lines ECM Brake actuator assembly (skid control ECU) Combination meter assembly Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly No. 1 junction connector No. 2 junction connector DLC3 CAN branch wire or connector |
Scheme 63
Scheme 63: WIRING DIAGRAM
Scheme 64
There may be a short circuit between the CAN bus lines when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 53 ohms.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 53 ohms. | Short between CAN bus lines ECM Brake actuator assembly (skid control ECU) Combination meter assembly Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly No. 1 junction connector No. 2 junction connector DLC3 CAN branch wire or connector |
There may be a short circuit between the CAN bus lines and +B when the resistance between terminals 6 (CANH) and 16 (BAT) or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kohms.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 16 (BAT) or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kohms. | Short between CAN bus lines and +B ECM Brake actuator assembly (skid control ECU) Combination meter assembly Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly No. 1 junction connector No. 2 junction connector DLC3 CAN branch wire or connector |
There may be a short circuit between the CAN bus lines and +B when the resistance between terminals 6 (CANH) and 16 (BAT) or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kohms.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 16 (BAT) or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kohms. | Short between CAN bus lines and +B ECM Brake actuator assembly (skid control ECU) Combination meter assembly Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly No. 1 junction connector No. 2 junction connector DLC3 CAN branch wire or connector |
There may be a short circuit between the CAN bus lines and GND when the resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 ohms.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 ohms. | Short between CAN bus lines and GND ECM Brake actuator assembly (skid control ECU) Combination meter assembly Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly No. 1 junction connector No. 2 junction connector DLC3 CAN branch wire or connector |
There may be a short circuit between the CAN bus lines and GND when the resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 ohms.
| Symptom | Trouble Area |
|---|
| The resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 ohms. | Short between CAN bus lines and GND ECM Brake actuator assembly (skid control ECU) Combination meter assembly Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly No. 1 junction connector No. 2 junction connector DLC3 CAN branch wire or connector |
If 2 or more ECUs and/or sensors do not appear on the Techstream "Bus Check" screen, one side of the CAN branch wire may be open (one side of the CANH [CAN branch wire]/CANL [CAN branch wire] of the ECU and/or sensor is open).
| Symptom | Trouble Area |
|---|
| 2 or more ECUs and/or sensors do not appear on the Techstream "Bus Check" screen. | Brake actuator assembly (skid control ECU) Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly |
If 2 or more ECUs and/or sensors do not appear on the Techstream "Bus Check" screen, one side of the CAN branch wire may be open (one side of the CANH [CAN branch wire]/CANL [CAN branch wire] of the ECU and/or sensor is open).
| Symptom | Trouble Area |
|---|
| 2 or more ECUs and/or sensors do not appear on the Techstream "Bus Check" screen. | Brake actuator assembly (skid control ECU) Spiral with sensor cable sub-assembly (steering angle sensor) Airbag sensor assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Certification ECU (smart key ECU assembly)* Power source control ECU* Power steering ECU assembly |
