CAN Communication: Other Lexus RX II рестайлинг

TERMINALS OF ECU

HINT

This section describes the standard CAN values for all CAN related components.

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1. CAN J/C (CAN RH J/C, CAN CENTER J/C) CAN RH J/C. NOTE: The connectors connected to the CAN J/C can be distinguished by the colors of the bus lines and the connecting side of the connector. The connectors can be connected to any cables on the same side. Connector color CONNECTOR COLOR DESCRIPTION CAN RH J/C connectors (A side, with earth terminal) Connector color Skid control ECU (J22) W Connector colors CONNECTOR COLOR DESCRIPTION CAN RH J/C connectors (B side, without earth terminal) Connector color HV control ECU (J56) GR CAN main bus line (J27) (bus line to connect CAN RH - CAN CENTER) B Yaw rate sensor (J26) L CAN Center J/C NOTE: The connectors connected to the CAN J/C can be distinguished by the colors of the bus lines and the connecting side of the connector. The connectors can be connected to any cables on the same side. Connector colors CONNECTOR COLOR DESCRIPTION CAN Center J/C connectors (A side, with earth terminal) Connector color Power steering ECU (J50) BR CAN main bus line (J52) (bus line to connect CAN center - CAN RH) B Network gateway ECU (J53) L DLC3 (J54) W Connector colors CONNECTOR COLOR DESCRIPTION CAN J/C connectors (B side, without earth terminal) Connector color Distance control ECU (J51) W Steering sensor (J55) 6R The terminals of the CAN J/C connectors. TERMINALS SPECIFIED CONDITION Terminal Terminal symbol 1 CANH 2 CANL Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Condition Specified value CANH-CANL Disconnect the negative battery cable 108 to 132 ohms Wiring diagram for identifying CAN J/C connectors.
2. DLC3 Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Condition Specified Condition D1-6 (CANH) - D1-14 (CANL) Disconnect the negative battery cable 54 to 69 ohms D1-6 (CANH) - D1-4 (CG) Disconnect the negative battery cable 200 ohms or higher D1-14 (CANL) - D1-4 (CG) Disconnect the negative battery cable 200 ohms or higher D1-6 (CANH) - D1-16 (BAT) Disconnect the negative battery cable 6 kohms or higher D1-14 (CANL) - D1-16 (BAT) Disconnect the negative battery cable 6 kohms or higher
3. SKID CONTROL ECU Disconnect the connectors from the skid control ECU. Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Wiring Color Condition Specified Condition S39-19 (CANH) - S39-18 (CANL) B-W Disconnect the negative battery cable 54 to 69 ohms S39-19 (CANH) - S38-1 (GND1) B-W-B Disconnect the negative battery cable 200 ohms or higher S39-18 (CANL) - S38-1 (GND1) W-W-B Disconnect the negative battery cable 200 ohms or higher S39-19 (CANH) - S39-3 (+BI1) B-L Disconnect the negative battery cable 6 kohms or higher S39-18 (CANL) - S39-3 (+BI1) W-L Disconnect the negative battery cable 6 kohms or higher S39-19 (CANH) - S40-5 (+BI2) B-L-B Disconnect the negative battery cable 6 kohms or higher S39-18 (CANL) - S40-5 (+BI2) W-L-B Disconnect the negative battery cable 6 kohms or higher
4. STEERING SENSOR Disconnect the connector from the steering sensor. Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Wiring Color (ECB) Condition Specified Condition S10-10 (CANH) - S10-9 (CANL) B-W Disconnect the negative battery cable 54 to 69 ohms S10-10 (CANH) - S10-2 (ESS) B-W-B Disconnect the negative battery cable 200 ohms or higher S10-9 (CANL) - S10-2 (ESS) W-W-B Disconnect the negative battery cable 200 ohms or higher S10-10 (CANH) - S10-3 (BAT) B-SB Disconnect the negative battery cable 6 kohms or higher S10-9 (CANL) - S10-3 (BAT) W-SB Disconnect the negative battery cable 6 kohms or higher
5. YAW RATE SENSOR Disconnect the connector from the yaw rate sensor. Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Wiring Color Condition Specified Condition Y1-3 (CANH) - Y1-2 (CANL) B-W Disconnect the negative battery cable 54 to 69 ohms Y1-3 (CANH) - Y1-1 (GND) B-W-B Disconnect the negative battery cable 200 ohms or higher Y1-2 (CANL) - Y1-1 (GND) W-W-B Disconnect the negative battery cable 200 ohms or higher Y1-3 (CANH) - D1-16 (BAT) B-LG Disconnect the negative battery cable 6 kohms or higher Y1-2 (CANL) - D1-16 (BAT) W-LG Disconnect the negative battery cable 6 kohms or higher
6. HV CONTROL ECU Disconnect the connectors from the HV control ECU. Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Wiring Color Condition Specified Condition H30-2S (CANH) - H30-33 (CANL) B-W Disconnect the negative battery cable 54 to 69 ohms H30-25 (CANH) - H30-32 (EOM) B-W-B Disconnect the negative battery cable 200 ohms or higher H30-33 (CANL) - H30-32 (EOM) W-W-B Disconnect the negative battery cable 200 ohms or higher H30-25 (CANH) - H29-1 (BATT) B-GR Disconnect the negative battery cable 6 kohms or higher H30-33 (CANL) - H29-1 (BATT) W-GR Disconnect the negative battery cable 6 kohms or higher
7. POWER STEERING ECU Disconnect the connector from the power steering ECU. Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Wiring Color Condition Specified Condition P41-2 (CANH) - P41-3 (CANL) B-W Disconnect the negative battery cable 54 to 69 ohms P41-2 (CANH) - P41-5 (PGND) B-B Disconnect the negative battery cable 200 ohms or higher P41-3 (CANL) - P41-5 (PGND) W-B Disconnect the negative battery cable 200 ohms or higher P41-2 (CANH) - P41-6 (+B) B-B-W Disconnect the negative battery cable 6 kohms or higher P41-3 (CANL) - P41-6 (+B) W-B-W Disconnect the negative battery cable 6 kohms or higher
8. GATEWAY ECU Disconnect the connector from the gateway ECU. Measure the resistance according to the value (s) in the table below. Standard resistance TERMINALS SPECIFIED CONDITION Terminals Wiring Color Condition Specified Condition G3-17 (CA1H) - G3-18 (CA1L) B-W Disconnect the negative battery cable 54 to 69 ohms G3-17 (CA1H) - G3-24 (GND) B-W-B Disconnect the negative battery cable 200 ohms or higher G3-18 (CA1L) - G3-24 (GND) W-W-B Disconnect the negative battery cable 200 ohms or higher G3-17 (CA1H) - G3-10 (BATT) B-SB Disconnect the negative battery cable 6 kohms or higher G3-18 (CA1L) - G3-10 (BATT) W-SB Disconnect the negative battery cable 6 kohms or higher
9. DISTANCE CONTROL ECU Disconnect the connector from the distance control ECU. Measure the resistance according to the value (s) in the table below.

Standard resistance

TERMINALS SPECIFIED CONDITION

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1. BUS CHECK Select "BUS CHECK" from the "OBD/MOBD MENU" screen. HINT: The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the intelligent tester via CAN VIM. Press "ENTER" on the intelligent tester screen via CAN VIM. The screen displays the ECUs and sensors that are properly connected to the CAN communication system. HINT: If the ECUs or sensors that should be properly connected are not displayed, there is a communication stop in the system.
2. CHECK FOR INSTALLED SYSTEMS (ECUS & SENSORS) THAT ADOPT CAN COMMUNICATION Systems (ECUs, sensors) that adopt CAN communication vary depending on the vehicle's optional settings. Check which systems (ECUs, sensors) are installed on the vehicle. ECU SENSOR DESCRIPTION ECU/Sensor name Check method Skid control ECU Installed on all vehicles Steering sensor Installed on all vehicles Yaw rate sensor Installed on all vehicles HV control ECU Installed on all vehicles Network gateway ECU Installed on all vehicles Power steering ECU Installed on all vehicles Distance control ECU Dynamic laser cruise control
3. DTC TABLE BY ECU HINT: In the CAN communication system, CAN communication system DTCs can be displayed by the ECU using the intelligent tester. If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to " «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-282980-S35399571822008041400000) " . (If, however, U0235 is output alone, see the dynamic laser cruise control system.) HV control ECU (HV) HINT: DTC communication uses the CAN communication system. Distance control ECU data is also output. DTC DETECTION CONDITION CHART DTC No. Detection Item P3108-594 A/C Amplifier Communication Circuit Malfunction P0A1D-615 Communication Error from HV ECU U0100-211 Lost Communication With ECM/PCM "A" U0100-212 Lost Communication With ECM/PCM "A" U0100-530 Lost Communication With ECM/PCM "A" U0100-774 Lost Communication With ECM/PCM "A" U0100-784 Lost Communication With ECM/PCM "A" U0122-732 Lost Communication With Vehicle Dynamics Control Module U0123-736 Lost Communication Error of Yaw Rate Sensor U0126-735 Lost Communication With Steering Angle Sensor Module U0129-220 Lost Communication With Brake System Control Module U0129-222 Lost Communication With Brake System Control Module U0129-528 Lost Communication With Brake System Control Module U0129-529 Lost Communication With Brake System Control Module U0293-730 Lost Communication With Distance Control ECU U0293-733 Lost Communication With Vehicle Dynamics Control Module U0131-433 Lost Communication With Power Steering Control Module U0131-434 Lost Communication With Power Steering Control Module U0146-435 Lost Communication With Gateway "A" U1101-728 Lost Communication With Distance Control ECU *1: Displayed on the "communication malfunction DTCs" screen of the intelligent tester. If U0235 is output alone, the CAN communication system is normal (See «DTC U0235 Lost Communication with Cruise Control Front Distance Range Sensor»(ref-283007-S19224888522008041400000) for U0235). Check for INFORMATION (See «DTC CHECK / CLEAR»(ref-282981-S26655451532008041400000) ). U0110-159, U0110-160, U0110-656, and U0110-657 are not the DTCs for the CAN communication system. Therefore, refer to the troubleshooting procedures for the hybrid control system. HV control ECU (ENGINE) DTC DETECTION CONDITION CHART DTC No. Detection Item U0001 Control Module Communication Bus Off U0293 Communication Error from HV ECU Skid control ECU HINT: DTC communication uses the SIL line. DTC DETECTION CONDITION CHART DTC No. Detection Item U0073 Control Module Communication Bus Off U0123 Lost Communication With Yaw Rate Sensor Module U0124 Lost Communication With Lateral Acceleration Sensor Module U0126 Lost Communication With Steering Angle Sensor Module U0293-152 Lost Communication With HV Control Module U0293-153 Lost Communication With HV Control Module U0293-154 Lost Communication With HV Control Module HINT: Check for INFORMATION (See «DTC CHECK / CLEAR»(ref-282978-S31892089082008041400000) ). Power steering ECU HINT: DTC communication uses the SIL line. DTC DETECTION CONDITION CHART DTC No. Detection Item U0073 Control Module Communication Bus Off U0105 Lost Communication With ECM/PCM "A" U0121 Lost Communication With Anti-lock Brake System (ABS) Control Module Gateway ECU HINT: The gateway ECU is connected to the CAN communication system, but CAN communication DTCs are not output.
4. DTC COMBINATION TABLE DTC COMBINATION CHART DTC Trouble Mode Output from Output DTC HYBRID CONTROL ECU COMMUNICATION STOP MODE SKID CONTROL ECU COMMUNICATION STOP MODE STEERING SENSOR COMMUNICATION STOP MODE YAW RATE SENSOR COMMUNICATION STOP MODE POWER STEERING COMMUNICATION STOP MODE DISTANCE CONTROL ECU COMMUNICATION STOP MODE GATEWAY ECU COMMUNICATION STOP MODE HV control ECU (HV) U0100-xxx *1 - X X X X X X P0A1D-615 - X X X X X X U0129-220, 528 *2 - o X X X X X U0131-433,434 - X X X o X X U0146-435 - X X X X X o P3108-594 - X X X X X o U0122-732 - During driving X X X X X U0123-736 - X X During driving X X X U0126-735 - X During driving X X X X U0293-730 - X X X X X X U0293-733 - X X X X X X U1101-728 - X X X X During driving X HV control ECU (Engine) U0001 *1 - X X X X X X U0293 *1 - X X X X X X Skid control ECU U0123 X - X o X X X U0124 X - X o X X X U0126 X - o X X X X U0293 o - X X X X X Power steering ECU U0073 X X X X - X X U0105 During driving X X X - X X U0121 X o X X - X X HINT: o: Output : Outputs under the following condition X: Not output *1: If only the following DTCs for the CAN communication system are output, refer to the troubleshooting procedures for the hybrid control system. *2: If the HV control ECU outputs DTC U0129-222, refer to the troubleshooting procedures for DTC U0293 output from the skid control ECU. If DTC U0129-529 is output, check for DTCs of the skid control ECU. DTC Output ECU DTC OUTPUT ECU CHART DTC Output ECU DTC No. HV control ECU (HV) U0100-211 U0100-212 U0100-530 U0100-774 U0100-784 HV control ECU (engine) U0001 U023 Perform troubleshooting according to the combination of DTCs output. HINT: See «HYBRID CONTROL ECU COMMUNICATION STOP MODE»(ref-282980-S36460329572008041400000) See «SKID CONTROL ECU COMMUNICATION STOP MODE»(ref-282980-S23472345702008041400000) See «YAW RATE SENSOR COMMUNICATION STOP MODE»(ref-282980-S12612486042008041400000) STEERING SENSOR COMMUNICATION STOP MODE: See «STEERING ANGLE SENSOR COMMUNICATION STOP MODE»(ref-282980-S39045280872008041400000) See «GATEWAY ECU COMMUNICATION STOP MODE»(ref-282980-S13674474022008041400000) See «POWER STEERING ECU COMMUNICATION STOP MODE»(ref-282980-S27023159442008041400000) See «DISTANCE CONTROL ECU COMMUNICATION STOP MODE»(ref-282980-S22829645882008041400000)

FAIL-SAFE CHART

1. FAIL-SAFE FUNCTION When communication fails in any of the CAN bus lines (communication lines) due to a short circuit or other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning. FAIL-SAFE CHART Function HV Control ECU (HV) HV Control ECU (ENGINE) Skid Control ECU Power Steering ECU Yaw Rate Sensor Action when communication is disabled DTC detection (if the driver can recognize a malfunction) Toyota Hybrid System-II (THS-II) Control (to optimize the combination between the engine and motor drive power for driving • o - - - Safe running Recognizable (HV caution light and MIL come on) Regenerative Braking (the motor acts as a generator that depends on wheel rotation and generates electricity to be stored in the HV battery) o - • - - Regenerative braking will stop. Recognizable. (VSC, ABS, ECB, and 4WD warning lights come on) VSC Control (to control the braking force when the VSC is activated) o - o o o VSC function will stop. Recognizable. (VSC, ABS, ECB, and 4WD warning lights come on) Laser Cruise (to maintain a safe distance from other vehicles) • - o o o Laser cruise will be inoperative. Recognizable. (Cruise warning light blinks) Electric Power Steering (to calculate the assist current from the torque sensor value and vehicle speed, and outputs the current to the motor) o - o o - When communication with the THS-II is disabled: Assist will stop. When communication with the ECB is disabled: Control will continue using assist force that is equivalent to the vehicle speed of 100 km/h (62.14 mile/h) Recognizable. (EPS warning light blinks) Rear View Monitor (to display the direction of movement when reversing) o - - - - Rear View monitor will be inoperative. Recognizable with the screen not displaying the rear view monitor. Multi-Information Display (to display operating condition, shift position, and DTC) o o o - - Light does not come on, or remains on (Recognizable tire air pressure, BRAKE, ABS and P/S lights come on. Shift position light goes off) HINT: •: Control master o: System related FUNCTION CHART Function Power steering ECU Distance Control ECU Network gateway ECU Action when communication is disabled DTC detection (if the driver can recognize a malfunction) Toyota Hybrid System-II (THS-II) Control (to optimize the combination between the engine and motor drive power for driving - - - Safe running Recognizable (HV caution light and MIL come on) Regenerative Braking (the motor acts as a generator that depends on wheel rotation and generates electricity to be stored in the HV battery) - - - Regenerative braking will stop. Recognizable. (VSC, ABS, ECB, and 4WD warning lights come on) VSC Control (to control the braking force when the VSC is activated) - - - VSC function will stop. Recognizable. (VSC, ABS, ECB, and 4WD warning lights come on) Laser Cruise (to maintain a safe distance from other vehicles) - o - Laser cruise will be inoperative. Recognizable. (Cruise warning light blinks) Electric Power Steering (to calculate the assist current from the torque sensor value and vehicle speed, and outputs the current to the motor) • - - When communication with the THS-II is disabled: Assist will stop. When communication with the ECB is disabled: Control will continue using assist force that is equivalent to the vehicle speed of 100 km/h (62 mile/h) Recognizable. (EPS warning light blinks) Multi-Information Display (to display operating condition, shift position, and DTC) o - • Meter Light does not come on, or remains on (Recognizable tire air pressure, BRAKE, ABS and P/S lights come on. Shift position light goes off) HINT: •: Control master o: System related