CAN Communication: Other Lexus ES XV40

TERMINALS OF ECU

Note. This section describes the standard CAN values for all CAN related components. Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the engine switch, any other switches, or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.

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1. JUNCTION CONNECTOR (CAN No. 2 J/C, CAN No. 5 J/C) CAN No. 2 J/C for CAN No. 1 Bus Wiring color: WIRING COLOR REFERENCE CAN No. 2 J/C Connector ("A" side, with earth terminal) Connector Color Color (CAN-H Side) Color (CAN-L Side) CAN No. 1 Bus Wire (E42) White B W Main Body ECU (E43) White BR GR DLC3 (E44) White LG P Wiring color: WIRING COLOR REFERENCE CAN No. 2 J/C Connector ("B" side, with earth terminal) Connector Color Color (CAN-H Side) Color (CAN-L Side) Yaw Rate Sensor (E47) White O P Center Airbag Sensor (E45) White G Y Steering Angle Sensor (E46) White V P Combination Meter (E48) White B W CAN No. 5 J/C for CAN No. 1 Bus (FRONT SIDE OF THE VEHICLE) Wiring color: WIRING COLOR REFERENCE Terminal Wiring Color Destination A26-1 (CANH) B ECM (CANH) A26-7 (CANL) W ECM (CANL) A26-2 (CANH) L Skid Control ECU (CANH) A26-8 (CANL) LG Skid Control ECU (CANL) A26-3 (CANH) G Active Control Engine Mount ECU (CANH) A26-9 (CANL) R Active Control Engine Mount ECU (CANL) CAN No. 5 J/C for CAN No. 1 Bus (REAR SIDE OF THE VEHICLE) Wiring color: WIRING COLOR REFERENCE Terminal Wiring Color Destination E34-1 (CANH) GR A/C Amplifier (CANH) E34-7 (CANL) BR A/C Amplifier (CANL) E34-2 (CANH)*2 P Gateway ECU (CANH) E34-8 (CANL)*2 O Gateway ECU (CANL) E34-4 (CANH) B CAN No. 2 J/C (CANH) E34-10 (CANL) W CAN No. 2 J/C (CANL) E34-5 (CANH)*1 L Multi-display (CANH) E34-11 (CANL)*1 Y Multi-display (CANL) HINT: *1: with Navigation system *2: with AFS, dynamic radar cruise control system or pre-collision system The connection diagram of the components which are connected to the CAN J/C
2. JUNCTION CONNECTOR (CAN No. 3 J/C) CAN No. 3 J/C for CAN MS Bus Wiring color: WIRING COLOR REFERENCE CAN No. 3 J/C Connector ("A" side, with earth terminal) Connector Color Color (CAN-H Side) Color (CAN-L Side) Certification ECU (E50) White R W Main Body ECU (E49) White B W Wiring color: WIRING COLOR REFERENCE CAN No. 3 J/C Connector ("B" side, with earth terminal) Connector Color Color (CAN-H Side) Color (CAN-L Side) Outer Mirror Control ECU (E52) White O P Multiplex Tilt and Telescopic ECU (E51) White BR GR Seat Position Control ECU (Front LH Side) (L17) Blue LG L Clearance Warning ECU (M13) Gray Y L Seat Position Control ECU (Front RH Side) (M14) Black V P
3. JUNCTION CONNECTOR (CAN No. 4 J/C) CAN No. 1 J/C for CAN No. 2 Bus Wiring color: WIRING COLOR REFERENCE CAN No. 1 J/C Connector ("A" Side, with earth terminal) Connector Color Color (CAN-H Side) Color (CAN-L Side) Gateway ECU (E38) White B W AFS ECU (E39) White L Y Distance Control ECU (E40) White GR BR CAN No. 2 Bus Wire (E41) White LG P CAN No. 4 J/C for CAN No. 2 Bus Wiring color: WIRING COLOR REFERENCE CAN No. 4 J/C Connector ("A" side, with earth terminal) Connector Color Color (CAN-H Side) Color (CAN-L Side) CAN No. 1 J/C (M15) White LG P Seat Belt Control ECU (M16) White L Y
4. DLC3 Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E21-6 (CANH) - E21-14 (CANL) LG-P HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E21-6 (CANH) - E21-4 (CG) LG - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E21-14 (CANL) - E21-4 (CG) P - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E21-6 (CANH) - E21-16 (BAT) LG-O HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E21-14 (CANL) - E21-16 (BAT) P-O LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
5. SKID CONTROL ECU WITH ACTUATOR Disconnect the connector from the skid control ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value A36-11 (CANH) - A36-25 (CANL) L - LG HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms A36-11 (CANH) - A36-32 (GND1) L - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher A36-25 (CANL) - A36-32 (GND1) LG - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher A36-11 (CANH) - A36-31 (+BS) L-L HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher A36-25 (CANL) - A36-31 (+BS) LG-L LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
6. STEERING ANGLE SENSOR Disconnect the connector from the steering angle sensor. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E31-10 (CANH) - E31-9 (CANL) V-P HIGH-level CAN bus wire-LOW-level CAN bus wire Engine switch off 54 to 69 ohms E31-10 (CANH) - E31-2 (ESS) V - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E31-9 (CANL) - E31-2 (ESS) P - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E31-10 (CANH) - E31-3 (BAT) V-V HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E31-9 (CANL) - E31-3 (BAT) P-V LOW-level CAN bus wire-Battery positive Engine switch off 6 kohms or higher
7. 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 RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E88-3 (CANH) - E88-2 (CANL) O-P HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E88-3 (CANH) - E88-1 (GND) O-W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E88-2 (CANL) - E88-1 (GND) P - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E88-3 (CANH) - E21-16 (BAT) O-O HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E88-2 (CANL) - E21-16 (BAT) P-O LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
8. CENTER AIRBAG SENSOR Disconnect the connector from the center airbag sensor. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E6-13 (CANH) - E6-22 (CANL) G-Y HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E6-13 (CANH) - E6-25 (E1) G - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E6-22 (CANL) - E6-25 (E1) Y - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E6-13 (CANH) - E21-16 (BAT) G-O HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E6-22 (CANL) - E21-16 (BAT) Y-O LOW-level CAN bus wire-Battery positive Engine switch off 6 kohms or higher
9. ECM Disconnect the connector from the ECM. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Condition Specified Value A10-41 (CANH) - A10-49 (CANL) Engine switch off 108 to 132 ohms Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value A10-41 (CANH) - A10-49 (CANL) B-W HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 108 to 132 ohms A10-41 (CANH) - B12-81 (E1) B - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher A10-49 (CANL) - B12-81 (E1) W - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher A10-41 (CANH) - A10-20 (BATT) B-Y HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher A10-49 (CANL) - A10-20 (BATT) W-Y LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
10. AIR CONDITIONING AMPLIFIER Disconnect the connector from the air conditioning amplifier. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E1-11 (CANH) - E1-12 (CANL) GR-BR HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E1-11 (CANH) - E1-14 (GND) GR - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E1-12 (CANL) - E1-14 (GND) BR - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E1-11 (CANH) - E1-21 (B) GR-GR HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E1-12 (CANL) - E1-21 (B) BR-GR LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
11. COMBINATION METER Disconnect the connector from the combination meter. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Condition Specified Value E19-17 (CANH) - E19-18 (CANL) Engine switch off 108 to 132 ohms Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E19-17 (CANH) - E19-18 (CANL) B-W HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 108 to 132 ohms E19-17 (CANH) - E19-12 (E2) B - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E19-18 (CANL) - E19-12 (E2) W - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E19-17 (CANH) - E19-1 (B2) B-R HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E19-18 (CANL) - E19-1 (B2) W-R LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
12. CERTIFICATION ECU Disconnect the connector from the certification ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Condition Specified Value E13-27 (CANH) - E13-28 (CANL) Engine switch off 108 to 132 ohms Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E13-27 (CANH) - E13-28 (CANL) R-W HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 108 to 132 ohms E13-27 (CANH) - E13-17 (E) R - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E13-28 (CANL) - E13-17 (E) W - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E13-27 (CANH) - E13-1 (+B1) R-W HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E13-28 (CANL)-E13-1 (+B1) W-W LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
13. MAIN BODY ECU (INSTRUMENT PANEL J/B) Disconnect the connector from the main body ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Condition Specified Value E59-16 (CANP) - E59-15 (CANN) Engine switch off 108 to 132 ohms Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E59-5 (CANH) - E59-6 (CANL) BR-GR HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E59-5 (CANH) - DF-10 (GND1) BR - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E59-6 (CANL) - DF-10 (GND1) GR - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E59-5 (CANH) - DA-1 (BATB) BR-W HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E59-6 (CANL) - DA-1 (BATB) GR-W LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E59-16 (CANP) - E59-15 (CANN) B-W HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 108 to 132 ohms E59-16 (CANP) - DF-10 (GND1) B - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E59-15 (CANN) - DF-10 (GND1) W - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E59-16 (CANP) - DA-1 (BATB) B-W HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E59-15 (CANN) - DA-1 (BATB) W-W LOW-level CAN bus wire-Battery positive Engine switch off 6 kohms or higher
14. ACTIVE CONTROL ENGINE MOUNT ECU Disconnect the connector from the active control engine mount ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value A9-14 (CANH) - A9-13 (CANL) G-R HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms A9-14 (CANH) - A9-12 (GND) G-GR HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher A9-13 (CANL) - A9-12 (GND) R-GR LOW-level CAN bus wire - Ground Engine switch off 200 a or higher A9-14 (CANH) - A9-2 (+B) G-B HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher A9-13 (CANL) - A9-2 (+B) R-B LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
15. GATEWAY ECU Disconnect the connector from the gateway ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Condition Specified Value E25-13 (CA2H) - E25-12 (CA2L) Engine switch off 108 to 132 ohms Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E25-16 (CA1H) - E25-15 (CA1L) P-O HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E25-16 (CA1H) - E25-4 (GND) P - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E25-1S (CA1L) - E25-4 (GND) O - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E25-16 (CA1H) - E25-2 (BATT) P-V HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E25-15 (CA1L) - E25-2 (BATT) O-V LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E25-13 (CA2H) - E25-12 (CA2L) B-W HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 108 to 132 ohms E25-13 (CA2H) - E25-4 (GND) B - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E25-12 (CA2L) - E25-4 (GND) W - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E25-13 (CA2H) - E25-2 (BATT) B-V HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E25-12 (CA2L) - E25-2 (BATT) W-V LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
16. MULTI-DISPLAY Disconnect the connector from the multi-display. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E62-26 (CANH) - E62-25 (CANL) L-Y HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E62-26 (CANH) - E62-10 (GND1) L - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E62-2S (CANL) - E62-10 (GND1) Y - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E62-26 (CANH) - E62-1 (+B1) L-GR HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E62-25 (CANL) - E62-1 (+B1) Y-GR LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
17. OUTER MIRROR CONTROL ECU Disconnect the connector from the outer mirror control ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E65-1 (CANH) - E65-21 (CANL) O-P HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E65-1 (CANH) - E66-9 (GND) O - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E65-21 (CANL) - E66-9 (GND) P - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E65-1 (CANH) - E66-3 (B) O-V HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E65-21 (CANL) - E66-3 (B) P-V LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
18. MULTIPLEX TILT AND TELESCOPIC ECU Disconnect the connector from the multiplex tilt and telescopic ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value E79-5 (CANH) - E79-14 (CANL) BR-GR HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms E79-5 (CANH) - E79-11 (GND) BR - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher E79-14 (CANL) - E79-11 (GND) GR - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher E79-5 (CANH) - E79-2 (+B) BR-W HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher E79-14 (CANL) - E79-2 (+B) GR-W LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
19. SEAT BELT CONTROL ECU Disconnect the connector from the seat belt control ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value M21-4 (CANH) - M21-6 (CANL) L-Y HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms M21-4 (CANH) - M21-18 (PGND) L - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher M21-6 (CANL) - M21-18 (PGND) Y - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher M21-4 (CANH) - M21-9 (+B) L-BR HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher M21-6 (CANL) - M21-9 (+B) Y-BR LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
20. SEAT POSITION CONTROL ECU (Front LH Side) Disconnect the connector from the seat position control ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value U4-5 (CANH) - U4-1 (CANL) LG-L HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms U4-5 (CANH) - U3-1 (GND) LG - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher U4-1 (CANL) - U3-1 (GND) L - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher U4-5 (CANH) - U3-5 (+B) LG-G HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher U4-1 (CANL) - U3-5 (+B) L-G LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
21. SEAT POSITION CONTROL ECU (Front RH Side) Disconnect the connector from the seat position control ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value T7-5 (CANH) - T7-1 (CANL) V-P HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms T7-5 (CANH) - T6-1 (GND) V - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher T7-1 (CANL) - T6-1 (GND) P - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher T7-5 (CANH) - T6-5 (+B) V-G HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher T7-1 (CANL) - T6-5 (+B) P-G LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
22. AFS ECU Disconnect the connector from the AFS ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value A22-12 (MPX1) - A22-13 (MPX2) L-Y HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms A22-12 (MPX1) - A22-22 (E1) L-W HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher A22-13 (MPX2) - A22-22 (E1) Y-W LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher A22-12 (MPX1) - E21-16 (BAT) L-O HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher A22-13 (MPX2) - E21-16 (BAT) Y-O LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
23. 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 RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value A8-8 (CANH) - A8-9 (CANL) GR-BR HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms A8-8 (CANH) - A8-12 (GND) GR-GR HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher A8-9 (CANL) - A8-12 (GND) BR-GR LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher A8-8 (CANH) - E21-16 (BAT) GR-O HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher A8-9 (CANL) - E21-16 (BAT) BR-O LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher
24. CLEARANCE WARNING ECU Disconnect the connector from the clearance warning ECU. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Terminals Wiring Color Terminal Description Condition Specified Value M2-19 (R1) - M2-20 (R2) Y-L HIGH-level CAN bus wire - LOW-level CAN bus wire Engine switch off 54 to 69 ohms M2-19 (R1) - M2-21 (E) Y - W-B HIGH-level CAN bus wire - Ground Engine switch off 200 ohms or higher M2-20 (R2) - M2-21 (E) L - W-B LOW-level CAN bus wire - Ground Engine switch off 200 ohms or higher M2-19 (R1) - E21-16 (BAT) Y-O HIGH-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher M2-20 (R2) - E21-16 (BAT) L-O LOW-level CAN bus wire - Battery positive Engine switch off 6 kohms or higher

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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. The screen displays the ECUs and sensors that are properly connected to the CAN communication system. HINT: There is a communication stop in the system of any properly connected ECUs or sensors that are not displayed.
2. CHECK FOR INSTALLED SYSTEMS (ECUS AND 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 NAME AND CHECKING METHOD REFERENCE ECU/Sensor name Check method Skid control ECU Installed on all vehicles Steering angle sensor Installed on all vehicles Yaw rate sensor Installed on all vehicles ECM Installed on all vehicles Center airbag sensor Installed on all vehicles Air conditioning amplifier Installed on all vehicles Combination meter Installed on all vehicles Main body ECU Installed on all vehicles Active control engine mount ECU Installed on all vehicles Certification ECU Installed on all vehicles Multi-display Installed on vehicles with navigation system Gateway ECU Installed on vehicles with any of AFS, dynamic radar cruise control system, and pre-collision system Outer mirror control ECU Installed on all vehicles Multiplex tilt and telescopic ECU Installed on all vehicles Clearance warning ECU Installed on vehicles with intuitive parking assist system Seat position control ECU (Front LH side) Installed on vehicles with seat position memory system Seat position control ECU (Front RH side) Installed on vehicles with seat position memory system AFS ECU Installed on vehicles with AFS (Adaptive Front-lighting System) Distance control ECU Installed on vehicles with dynamic radar cruise control system Seat belt control ECU Installed on vehicles with pre-collision system
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-283107-S06034118862008041700000) ". ECM HINT: DTC communication uses the CAN communication system. Distance control ECU data is also output. DTC TABLE (ECM) DTC No. Detection Item U0100 ( (3) ) Lost Communication with ECM/PCM "A" U0101 ( (1) ) Lost Communication with Communication with TCM U0122 ( (3) ) Lost Communication with Vehicle Dynamics Control Module U0123 ( (3) ) Lost Communication with Yaw Rate Sensor Module U0126 ( (3) ) Lost Communication with Steering Angle Sensor Module U0235 ( (2) , (3) ) Lost Communication with Cruise Control Front Distance Range Sensor U1101 ( (3) ) Lost Communication with Distance Control ECU U1102 ( (2) ) Lost Communication with Radar Sensor (1) If only DTC U0101 is output, refer to SFI system (See «DTC U0101 LOST COMMUNICATION WITH TCM»(ref-283100-S42418135072008041700000) ). (2) If U0235 or U1102 is output alone from the ECUs, the CAN communication is normal (See «DTC U0235 LOST COMMUNICATION WITH CRUISE CONTROL FRONT DISTANCE RANGE SENSOR»(ref-283119-S14483969902008041700000) for U0235, See «DTC U1102 LOST COMMUNICATION WITH RADAR SENSOR»(ref-283119-S11377222072008041700000) for U1102). (3) This DTC is output only for vehicles with the dynamic radar cruise control system. SKID CONTROL ECU HINT: DTC communication uses the CAN communication system. DTC TABLE (SKID CONTROL ECU) DTC No. Detection Item U0073 Control Module Communication Bus Off U0100 Lost Communication with ECM/PCM "A" U0123 Lost Communication with Yaw Rate Sensor Module U0124 Lost Communication with Lateral Acceleration Sensor Module U0126 Lost Communication with Steering Angle Sensor Module COMBINATION METER HINT: DTC communication uses the CAN communication system. DTC TABLE (COMBINATION METER) DTC No. Detection Item U0100 Lost Communication with ECM/PCM "A" U0129 Lost Communication with Skid Control ECU GATEWAY ECU HINT: DTC communication uses the CAN communication system. DTC TABLE (GATEWAY ECU) DTC No. Detection Item U0182 Lost Communication with AFS ECU U1002 Lost Communication with Gateway Module U1100 Lost Communication with Seat Belt Control ECU U1102 Lost Communication with Radar Sensor MAIN BODY ECU HINT: DTC communication uses the CAN communication system. DTC TABLE (MAIN BODY ECU) DTC No. Detection Item B1207 Certification ECU Communication Malfunction B1213 Tilt and Telescopic ECU Communication Stop B1272 Power Seat ECU Communication Stop B1276 Power Mirror Control ECU Communication Stop B1289 Passenger Seat ECU Communication Stop B1297 Clearance Sonar ECU Communication Stop B2326 CAN MS Bus Line Communication Malfunction AFS ECU HINT: DTC communication uses the CAN communication system. DTC TABLE (AFS ECU) DTC No. Detection Item B2427 CAN Communication Malfunction SEAT BELT CONTROL ECU HINT: DTC communication uses the CAN communication system. DTC TABLE (SEAT BELT CONTROL ECU) DTC No. Detection Item U0100 Lost Communication with ECM/PCM "A" U0122 Lost Communication with Vehicle Dynamics Control Module U0151 Lost Communication with Airbag ECU U0235 (*4) Lost Communication with Cruise Control Front Distance Range Sensor U1101 Lost Communication with Distance Control ECU U1102 (*4) Lost Communication with Radar Sensor HINT: *4 : If U0235 or U1102 is output alone from the ECUs, the CAN communication is normal (See «DTC U0235 LOST COMMUNICATION WITH CRUISE CONTROL FRONT DISTANCE RANGE SENSOR»(ref-283119-S14483969902008041700000) for U0235, See «DTC U0235 LOST COMMUNICATION WITH CRUISE CONTROL FRONT DISTANCE RANGE SENSOR»(ref-283119-S14483969902008041700000) for U1102). MULTIPLEX TILT AND TELESCOPIC ECU HINT: DTC communication uses the CAN communication system. DTC TABLE (MULTIPLEX TILT AND TELESCOPIC ECU) DTC No. Detection Item B2621 Communication interruption CENTER AIRBAG SENSOR HINT: The center airbag sensor is connected to the CAN communication system, but CAN communication DTCs are not output. STEERING ANGLE SENSOR HINT: The steering angle sensor is connected to the CAN communication system, but CAN communication DTCs are not output. YAW RATE SENSOR HINT: The yaw rate sensor is connected to the CAN communication system, but CAN communication DTCs are not output. OUTER MIRROR CONTROL ECU HINT: The outer mirror control ECU sensor is connected to the CAN communication system, but CAN communication DTCs are not output. CERTIFICATION ECU HINT: The certification ECU is connected to the CAN communication system, but CAN communication DTCs are not output. MULTI-DISPLAY HINT: The multi-display is connected to the CAN communication system, but CAN communication DTCs are not output. CLEARANCE WARNING ECU HINT: The clearance warning ECU is connected to the CAN communication system, but CAN communication DTCs are not output. SEAT POSITION CONTROL ECU (FRONT LH SIDE) HINT: The seat position control ECU (front LH side) is connected to the CAN communication system, but CAN communication DTCs are not output. SEAT POSITION CONTROL ECU (FRONT RH SIDE) HINT: The seat position control ECU (front RH side) is connected to the CAN communication system, but CAN communication DTCs are not output.
4. DTC COMBINATION TABLE CAN No. 1 Bus DTC COMBINATION TABLE (CAN NO 1 BUS) DTC Trouble Mode Output from Output DTC ECM Communication Stop Mode Skid Control ECU Communication Stop Mode Steering Angle Sensor Communication Stop Mode Yaw Rate Sensor Communication Stop Mode Combination Meter ECU Communication Stop Mode Skid Control ECU U0073 X X X X X U0100 [] During driving X X X X U0123 X X X o X U0124 X X X o X U0126 X X o X X ECM U0100 [] During distance control X X X X U0122 X [] During distance control X X X U0123 X X X [] During distance control X U0126 X X [] During distance control X X U1101 X X X X X Combination Meter ECU U0100 o X X X X U0129 X o X X X AFS ECU B2427 o o o X X Seat Belt Control ECU U0100 o X X X X U0122 X o X X X U0151 X X X X X U1101 X X X X X Multiplex tilt and telescopic ECU B2621 X X X X o HINT: o: Set X: Not set or may be set according to the malfunctioning part when one side of the CAN bus wire opens []: Set under the condition shown in the table above DTC COMBINATION TABLE (CAN NO 1 BUS) DTC Trouble Mode Output from Output DTC Air Conditioning Amplifier Communication Stop Mode Center Airbag Sensor Communication Stop Mode Gateway ECU Communication Stop Mode (*2) Active Control Engine Mount ECU Communication Stop Mode Main Body ECU Communication Stop Mode Navigation ECU Communication Stop Mode (*1) Skid Control ECU U0073 X X X X X X U0100 X X X X X X U0123 X X X X X X U0124 X X X X X X U0126 X X X X X X ECM U0100 X X X X X X U0122 X X X X X X U0123 X X X X X X U0126 X X X X X X U1101 X X [] During distance control X X X Combination Meter ECU U0100 X X X X X X U0129 X X X X X X AFS ECU B2427 X X o X o X Seat Belt Control ECU U0100 X X o X X X U0122 X X o X X X U0151 X o o X X X U1101 X X X X X X Multiplex tilt and telescopic ECU B2621 X X X X X X HINT: o O: Set X: Not set or may be set according to the malfunctioning part when one side of the CAN bus wire opens (*1): with Navigation system (*2): Only when any ECU is connected to the CAN No. 2 bus wire (See «SKID CONTROL ECU COMMUNICATION STOP MODE»(ref-283107-S41690494692008041700000) ) (See «STEERING ANGLE SENSOR COMMUNICATION STOP MODE»(ref-283107-S38871123052008041700000) ) (See «YAW RATE SENSOR COMMUNICATION STOP MODE»(ref-283107-S37569999682008041700000) ) (See «GATEWAY ECU COMMUNICATION STOP MODE»(ref-283107-S27485422182008041700000) ) (See «ECM COMMUNICATION STOP MODE»(ref-283107-S37339627692008041700000) ) (See «MAIN BODY ECU COMMUNICATION STOP MODE»(ref-283107-S09348081242008041700000) ) (See «ACTIVE CONTROL ENGINE MOUNT ECU COMMUNICATION STOP MODE»(ref-283107-S29713464592008041700000) ) (See «CENTER AIRBAG SENSOR COMMUNICATION STOP MODE»(ref-283107-S29458566592008041700000) ) (See «NAVIGATION ECU COMMUNICATION STOP MODE»(ref-283107-S37937367922008041700000) ) (See «COMBINATION METER ECU COMMUNICATION STOP MODE»(ref-283107-S22339845212008041700000) ). (See «AIR CONDITIONING AMPLIFIER COMMUNICATION STOP MODE»(ref-283107-S33046689782008041700000) ).

FAIL-SAFE CHART

1. FAIL-SAFE FUNCTION When communication fails in any of the CAN bus wires (communication wires), a fail-safe function(s) will operate. The fail-safe function that is specified for each system operates to prevent those systems from malfunctioning. The following chart shows the relationships between components and system functions and effects of communication failure on these functions. (For further details, see the pages for each system.) FAIL-SAFE CHART Function (Function Description) Control Master System Related Fail-safe Operation DTC (Driver Detectable) ACM control (Controls active engine mount to reduce engine vibration) Active control engine mount ECU ECM Skid Control ECU Air Conditioning Amplifier ACM control stops P16A4 (Engine vibration increases) VSC control (Controls driving force while VSC in operation) Skid Control ECU ECM Steering Angle Sensor Yaw Rate Sensor VSC control is inoperative (VSC control gradually stops) U0073, U0100, U0123, U0124, U0126 (VSC warning Light comes on) Buzzer control Combination Meter ECM Skid Control ECU Center Airbag Sensor Assembly Certification ECU Main Body ECU Distance Control ECU Buzzer function stops U0100, U0129 (Buzzer does not sound) Meter display (Displays operation condition and DTCs) Combination Meter ECM Skid Control ECU Center Airbag Sensor Assembly Certification ECU Main Body ECU AFS ECU Distance Control ECU Seat Belt Control ECU Light does not come on, illuminates abnormally, or blinks abnormally U0100, U0129 (Abnormal light illumination) Air conditioning control Air Conditioning Amplifier ECM Combination Meter Main Body ECU Multi-display Air conditioning function and PTC heater function stop B1499 (Air conditioning inoperative) Smart entry/Power door lock control Certification ECU Combination Meter Main Body ECU Unlock permitted B1207, B2326 (Wireless door lock cannot operate) Security function Certification ECU Main Body ECU Security function is inoperative (Theft deterrent system cannot be set) B1207, B2326 (Security indicator light does not come on) Clearance sonar function (Informs driver when an obstacle is detected) Clearance Warning ECU ECM Combination Meter Main Body ECU Navigation Control ECU Clearance sonar function stops None (Clearance sonar main switch indicator does not come on) Mirror surface adjustment/power retracting function Outer Mirror Control ECU Main Body ECU Mirror surface adjustment/ power retracting function is inoperative None (Mirror adjustment inoperative) Mirror automatic retracting/mirror tilt reverse-link function Outer Mirror Control ECU ECM Main Body ECU Mirror automatic retracting/mirror tilt reverse-link function is inoperative None (Mirror adjustment inoperative) Door mirror foot light illumination function Outer Mirror Control ECU Main Body ECU Certification ECU Foot illumination is inoperative None (Foot illumination inoperative) D seat, mirror, tilt and telescopic positions memorizing/restoring function Seat Position Control ECU (Front LH Side) ECM Combination Meter Main Body ECU Outer Mirror Control ECU Multiplex Tilt and Telescopic ECU Positions cannot be memorized or restored None (Position memorizing/ restoring function inoperative) Memory call registration/restoration function (Registration/restoration of positions for each smart/ wireless key) Seat Position Control ECU (Front LH Side) Main Body ECU Certification ECU Outer Mirror Control ECU Multiplex Tilt and Telescopic ECU Positions cannot be registered or restored None (Position registration/restoration inoperative) P seat position memorizing/restoring function Seat Position Control ECU (Front RH Side) ECM Combination Meter Main Body ECU Position cannot be memorized or restored None (Position memorizing/restoring function inoperative) Auto away/return function (Moves the steering wheel based on the engine switch condition) Multiplex Tilt and Telescopic ECU Combination Meter Main Body ECU Auto away/return function is inoperative None (Auto away/return function inoperative) AFS control (Headlight left/right angle control) AFS ECU ECM Skid Control ECU Steering Angle Sensor Main Body ECU Swivel control stops/leveling control continues B2427 (AFS OFF indicator blinks) Dynamic radar cruise control (Maintains vehicle-to-vehicle distance) Distance Control ECU ECM Skid Control ECU Steering Angle Sensor Yaw Rate Sensor Vehicle-to-vehicle distance control does not operate U0100, U0122, U0123, U0126 (Master warning light comes on, warning message is displayed on multi-information display, and warning buzzer sounds) Pre-collision control (Requests seat belt tightening when an unavoidable collision possibility is detected) Seat Belt Control ECU Skid Control ECU Center Airbag Sensor Assembly Distance Control ECU Pre-collision system is inoperative U0122, U0151, U1101 (PCS warning light comes on) CAN MS bus monitoring function Main Body ECU Certification ECU Outer Mirror Control ECU Seat Position Control ECU (Front LH Side) Seat Position Control ECU (Front RH Side) Multiplex Tilt and Telescopic ECU Clearance warning ECU Communication error is detected B1207, B1213, B1272, B1276, B1297, B1289, B2326 (Not detectable) CAN No. 2 bus monitoring function Gateway ECU AFS ECU Distance Control ECU Seat Belt Control ECU Communication error is detected U0182, U1002, U1100, U1102 (Not detectable)