CAN Communication System (Diagnostics - Introduction): Diagnosis Lexus HS I

HOW TO PROCEED WITH TROUBLESHOOTING

Note. Refer to the Diagnosis System for the DTCs for the CAN communication. Refer to troubleshooting of each system if DTCs regarding the CAN communication system are not output.

HINT

*: Use the Techstream.

Scheme 36

Scheme 37

Scheme 38

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. CUSTOMER PROBLEM ANALYSIS Interview the customer and confirm the problem. NEXT: Go to next step
3. CHECK BATTERY Standard Voltage 11 to 14 V HINT: If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. NEXT: Go to next step
4. CHECK AND CLEAR DTCS* HINT: CAN communication DTCs are stored when there is an open or short in any of the communication wires. Any problems with the power source of a corresponding ECU or sensor, or problems in the ECU or the sensor itself also cause these DTCs to be stored. If a CAN communication wire connector is disconnected with the power switch on (IG), the ECUs of the corresponding system and related systems store a DTC. NEXT: Go to next step
5. CHECK FOR DLC3 BRANCH WIRE AND CAN NO. 1 BUS MAIN WIRE (CANH - CANL) NOTE: Turn the power switch off before measuring the resistances between CAN bus main wires and between CAN bus branch wires. Turn the power switch off before inspecting CAN bus wires for a ground short. After the power switch is turned off, check that the key reminder warning system and light reminder warning system are not operating. Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the power 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. HINT: Operating the power switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change. Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition F11-6 (CANH) - F11-14 (CANL) Power switch off 54 to 69 ohms TEXT IN ILLUSTRATION *1 DLC3 Result Result Proceed to OK A NG (70 ohms or higher) B NG (Below 54 ohms) C B --> GO TO OPEN IN CAN MAIN BUS WIRE. Refer to «Open in CAN Main Bus Line»(ref-398325-S32409520272011051600000) C --> GO TO SHORT IN CAN BUS LINES. Refer to «Check CAN Bus Lines for Short Circuit»(ref-398325-S40195401372011051600000) A: Go to next step
6. CHECK FOR SHORT TO GND IN CAN NO. 1 BUS (CANH, CANL - CG) Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition F11-6 (CANH) - F11-4 (CG) Power switch off 200 ohms or higher F11-14 (CANL) - F11-4 (CG) Power switch off 200 ohms or higher TEXT IN ILLUSTRATION *1 DLC3 NG --> GO TO SHORT TO GND IN CAN BUS WIRE. Refer to «Check CAN Bus Line for Short to GND»(ref-398325-S38166884742011051600000) OK: Go to next step
7. CHECK FOR SHORT TO +B IN CAN NO. 1 BUS (CANH, CANL - BAT) Disconnect the cable from the negative (-) battery terminal. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F11-6 (CANH) - F11-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher F11-14 (CANL) - F11-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher TEXT IN ILLUSTRATION *1 DLC3 NG --> GO TO SHORT TO +B IN CAN BUS WIRE. Refer to «Check CAN Bus Line for Short to +B»(ref-398325-S03442504982011051600000) OK: Go to next step
8. CHECK INSTALLED SYSTEMS (ECU AND SENSOR) THAT USE CAN COMMUNICATION Based on the vehicle equipment and specifications, confirm the systems that use CAN communication. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . NEXT: Go to next step
9. CHECK ECUS CONNECTED TO CAN BUS* Select "CAN Bus Check" from the screen on the Techstream. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Observe the screen for approximately 1 minute to check the ECUs and sensors displayed on the screen. Result Result Proceed to All ECUs and sensors connected to the CAN communication system are displayed on the screen. (CAN bus circuit is currently normal.) A All ECUs except the power management control ECU connected to the CAN No. 2 bus are not displayed on the screen. The power management control ECU (power management1) outputs DTC U1002. (Open or short in CAN No. 2 bus main wires.) B All ECUs except the power management control ECU connected to the power management bus are not displayed on the screen. The power management control ECU (power management2) outputs DTC U1002. (Open or short in power management bus main wires.) C All ECUs except the main body ECU connected to the CAN MS bus are not displayed on the screen. The main body ECU outputs DTC U1002. (Open or short in CAN MS bus main wires.) D The driving support ECU (Pre-Collision2) outputs DTC U1002. (Open or short in driving support bus main wires.) E All ECUs connected to the CAN No. 2 bus and power management bus are not displayed on the screen. (Open in power management control ECU branch wires or power management control ECU malfunction.) F One of the ECUs and sensors connected to the CAN No. 1 bus is not displayed on the screen. (Open in ECU or sensor branch wires, or communication interrupted.) G One of the ECUs and sensors connected to the CAN No. 2 bus or power management bus is not displayed on the screen. (Open in ECU or sensor branch wires, or communication interrupted.) G Some ECUs and sensors repeatedly appear and disappear on the screen during this check. (Open in one side of ECU or sensor branch wires.) H NOTE: The systems (ECUs and sensors) that adopt CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed on the vehicle. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . Non-installed ECUs or sensors will not be displayed. Do not mistake them for being in communication stop mode. The ECUs and sensors that repeatedly appear and disappear from the screen during this check are considered normal. (The response to the Techstream and its display are affected by signals output from other ECUs which have an open circuit in either of their CAN bus branch wires.) HINT: The ECUs connected to the CAN No. 2 bus and power management bus are displayed on the screen by the power management control ECU. The ECUs connected to the CAN MS bus are displayed on the screen by the main body ECU. B --> GO TO U1002 (POWER MANAGEMENT1). Refer to «DTC U1002: Lost Communication with Gateway Module (Power Management1)»(ref-398325-S24214952212011051600000) C --> GO TO U1002 (POWER MANAGEMENT2). Refer to «DTC U1002: Lost Communication with Gateway Module (Power Management2); DTC U0164: Lost Communication with A/C ECU»(ref-398325-S34832894492011051600000) D --> GO TO U1002 (MAIN BODY). Refer to «DTC U1002: Lost Communication with Gateway Module (Main Body)»(ref-398325-S34588729182011051600000) E --> GO TO U1002 (PRE-COLLISION2). Refer to «DTC U1002: Lost Communication with Gateway Module (Pre-Collision2)»(ref-398325-S04770101022011051600000) F --> GO TO POWER MANAGEMENT CONTROL ECU COMMUNICATION STOP MODE. Refer to «Power Management Control ECU Communication Stop Mode»(ref-398325-S20845656262011051600000) G --> GO TO COMMUNICATION STOP MODE TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-398235-S40445488692011051600000) G --> GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398235-S04349864842011051600000) H --> GO TO OPEN IN ONE SIDE OF CAN BRANCH LINE. Refer to «Open in One Side of CAN Branch Line»(ref-398325-S39420950402011051600000) A: Go to next step
10. RECHECK DTC HINT: Sometimes CAN communication system DTCs are output, but all ECUs and sensors connected to the CAN communication system are displayed on the Techstream. In this case, previous or history DTCs may indicate the cause of the problem. ECUs related to a problem in the CAN bus will store DTCs to indicate communication malfunctions. Communication stop mode in the CAN bus can be determined by comparing the combination of DTCs that have been set. Refer to DTC Combination Table for the CAN bus. The power management control ECU will store communication error DTCs when the ECUs connected to the CAN No. 2 bus and power management bus cannot communicate, or if a network malfunction occurs. The main body ECU will store communication error DTCs when the ECUs connected to the CAN MS bus cannot communicate, or if a network malfunction occurs. The driving support ECU will store communication error DTCs when the ECUs connected to the driving support bus cannot communicate, or if a network malfunction occurs. Result Result Proceed to Communication error DTCs other than the codes output from the power management control ECU are output. (A malfunction occurred in the CAN No. 1 bus.) A The power management control ECU (Power Management1) outputs DTC 1002. (A malfunction occurred in the CAN No. 2 bus.) B The power management control ECU (Power Management2) outputs DTC 1002. (A malfunction occurred in the power management bus.) C The main body ECU (Main Body) outputs DTC 1002. (A malfunction occurred in the CAN MS bus.) D The driving support ECU (Pre-Collision2) outputs DTC 1002. (A malfunction occurred in the driving support bus.) E The power management ECU outputs DTCs other than DTC 1002. (A malfunction occurred in an ECU branch wire connected to the CAN No. 2 bus or power management bus.) F B --> GO TO U1002 (POWER MANAGEMENT1). Refer to «DTC U1002: Lost Communication with Gateway Module (Power Management1)»(ref-398325-S24214952212011051600000) C --> GO TO U1002 (POWER MANAGEMENT2). Refer to «DTC U1002: Lost Communication with Gateway Module (Power Management2); DTC U0164: Lost Communication with A/C ECU»(ref-398325-S34832894492011051600000) D --> GO TO U1002 (MAIN BODY). Refer to «DTC U1002: Lost Communication with Gateway Module (Main Body)»(ref-398325-S34588729182011051600000) E --> GO TO U1002 (PRE-COLLISION2). Refer to «DTC U1002: Lost Communication with Gateway Module (Pre-Collision2)»(ref-398325-S04770101022011051600000) F --> GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-398235-S04349864842011051600000) A: Go to next step
11. DTC COMBINATION TABLE Confirm trouble according to the combination of output DTCs regarding the CAN communication system. Refer to «DIAGNOSIS SYSTEM»(ref-398235-S15853483682011051600000) . HINT: Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs and sensors connected to the CAN communication system are displayed on "CAN Bus Check" of the Techstream. NEXT: Go to next step
12. CIRCUIT INSPECTION NEXT: Go to next step
13. IDENTIFICATION OF PROBLEM NEXT: Go to next step
14. REPAIR OR REPLACEMENT NEXT: Go to next step
15. CONFIRMATION TEST* NEXT --> END

PROBLEM SYMPTOMS TABLE

HINT

1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

RESULT OF CAN NO. 1 BUS CHECK

HINT

Refer to How to Proceed with Troubleshooting for the CAN No. 1 Bus Check procedure.

COMMUNICATION STOP MODE TABLE

DIAGNOSIS SYSTEM

1. ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM CAN No. 1 Bus Hybrid vehicle control ECU Power management control ECU Transmission control ECU Brake booster with master cylinder (Skid control ECU) Airbag sensor assembly Multiplex network body ECU (Main body ECU) Smart key ECU (Certification ECU) Combination meter Display and navigation module display (Navigation ECU)*1 Headlight swivel ECU (AFS ECU)*2 Driving support ECU*3 Seat belt control ECU*4 CAN No. 2 Bus Power management control ECU Hybrid vehicle control ECU Brake booster with master cylinder (Skid control ECU) Power steering ECU Spiral cable with sensor (Steering angle sensor) Yaw rate sensor Parking assist ECU*5 Clearance warning ECU*6 CAN MS Bus Multiplex network body ECU (Main body ECU) Tire pressure monitor ECU Multiplex tilt and telescopic ECU*7 Front power seat switch LH*7 Outer mirror control ECU LH*7 Outer mirror control ECU RH*7 Power Management Bus Power management control ECU Air conditioning amplifier Driving Support Bus*3 Driving support ECU Millimeter wave radar sensor Lane recognition camera sensor*8 Driver monitor ECU*9 HINT: *1: w/ Navigation system *2: w/ AFS *3: w/ Dynamic radar cruise control system *4: w/ Pre-collision system *5: w/ Wide view front monitor system *6: w/ Intuitive parking assist system *7: w/ Seat position memory *8: w/ Lane-keeping assist system *9: w/ Driver monitor system
2. CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT ADOPT CAN COMMUNICATION The systems (ECUs and sensors) that adopt CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed on the vehicle. ECU/Sensor Name Techstream Display Applicability Hybrid vehicle control ECU Hybrid Control Engine Installed on all vehicles Power management ECU Power Management1 Installed on all vehicles Transmission control ECU Transmission Control Installed on all vehicles Power steering ECU EPS Installed on all vehicles Skid control ECU ABS/VSC/TRAC Installed on all vehicles Steering angle sensor Steering Angle Sensor Installed on all vehicles Yaw rate sensor Yaw Rate/Deceleration Sensor Installed on all vehicles Tire pressure monitor ECU Tire Pressure Monitor Installed on all vehicles Airbag sensor assembly SRS Airbag Installed on all vehicles Main body ECU Main Body Installed on all vehicles Certification ECU Smart Access/Smart Key/Wireless Tuner Installed on all vehicles Air conditioning amplifier Air Conditioner Installed on all vehicles Combination meter Combination Meter Installed on all vehicles Navigation ECU AVN1 w/ Navigation system AFS ECU AFS/HL AutoLeveling w/ AFS Parking assist ECU Advanced Parking Guidance System w/ Wide view front monitor system Clearance warning ECU Clearance Sonar1 w/ Intuitive parking assist system Driving support ECU Cruise Control (ACC) w/ Dynamic radar cruise control system Millimeter wave radar sensor - w/ Dynamic radar cruise control system Seat belt control ECU Pre-Collision1 w/ Pre-collision system Lane recognition camera sensor - w/ Lane-keeping assist system Driver monitor ECU - w/ Driver monitor system Front power seat switch (LH) Driver Seat w/ Seat position memory Tilt and telescopic ECU Tilt and Telescopic w/ Seat position memory Outer mirror control ECU LH L-Mirror w/ Seat position memory Outer mirror control ECU RH R-Mirror w/ Seat position memory
3. CAN BUS CHECK HINT: The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the Techstream. Using the Techstream, select "CAN Bus Check" from "System Select".
4. DTC TABLE BY ECU HINT: In the CAN communication system, CAN communication system DTCs can be displayed by the ECU using the Techstream. If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to How to Proceed with Troubleshooting. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-398235-S17886579092011051600000) . Hybrid Vehicle Control ECU / Techstream Display "Engine" DTC Code Detection Item U0001*1 Lost Communication with ECM/PCM "A" U0293*2 Lost Communication with HV ECU HINT: DTC communication uses the CAN communication system. *1: Refer to Engine Control system. Refer to «DTC U0001: High Speed CAN Communication Circuit»(ref-398226-S30593199392011051600000) . *2: Refer to Engine Control system. Refer to «DTC U0293: Lost Communication with HV ECU»(ref-398226-S39594931382011051600000) . Hybrid Vehicle Control ECU / Techstream Display "Hybrid Control" HINT: Refer to Hybrid Control System "DTC CHECK / CLEAR". Refer to «DTC CHECK / CLEAR»(ref-398094-S29961611252011051600000) . DTC Code Detection Item 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" U0110-159*3 Lost Communication with ECM/PCM "A" U0110-160*4 Lost Communication with ECM/PCM "A" U0110-656*3 Lost Communication with ECM/PCM "A" U0110-657*3 Lost Communication with ECM/PCM "A" U0122-732 Lost Communication with Vehicle Dynamic Control Module U0123-736 Lost Communication with Yaw Rate Sensor Module U10126-735 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 U0129-527 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 U0140-146 Communication Error from Body ECU to HV ECU U0151-763*5 Communication Error from Airbag ECU to HV ECU U0164-594*6 Communication Error from A/C ECU to HV ECU U0164-827 Communication Error from A/C ECU to HV ECU U0235-737 Lost Communication with Cruise Control Front Distance Range Sensor U0293-730 Lost Communication with Hybrid Vehicle Control System U0424-537*7 Invalid Data Received From HV AC Control Module U1102-738 Lost Communication with Radar Sensor U1104-728 Lost Communication with Driving Support ECU U1107-436 Lost Communication with Power Management Module HINT: DTC communication uses the CAN communication system. *3: Refer to Engine Control system. Refer to «DTC U0110-159: Lost Communication with Driver Motor Control Module; DTC U0110-656: Lost Communication with Driver Motor Control Module; DTC U0110-657: Lost Communication with Driver Motor Control Module»(ref-398092-S17906613792011051600000) . *4: Refer to Engine Control system. Refer to «DTC U0110-160: Lost Communication with Driver Motor Control Module»(ref-398092-S20810446472011051600000) . *5: Refer to Engine Control system. Refer to «DTC U0151-763: Lost Communication with Airbag ECU»(ref-398092-S39579096692011051600000) . *6: Refer to Engine Control system. Refer to «DTC U0164-594: Lost Communication with A/C ECU; DTC U0164-827: Lost Communication with A/C ECU»(ref-398092-S27424881322011051600000) . *7: Refer to Engine Control system. Refer to «DTC U0424-537: Invalid Data Received from HVAC Control Module»(ref-398092-S13977582132011051600000) . Power Management Control ECU / Techstream Display "Electric Power Control" DTC Code Detection Item U0129 Vehicle Speed Signal Communication U0293 HV ECU Communication HINT: DTC communication uses the CAN communication system. Power Management Control ECU / Techstream Display "Power Management1" DTC Code Detection Item U0100 Lost Communication with ECM/PCM "A" U0125 Lost Communication with Yaw Rate Sensor Module U0126 Lost Communication with Steering Angle Sensor Module U0129 Lost Communication With Brake System Control Module U0131 Lost Communication with Power Steering Control Module U0293 Lost Communication with Hybrid Vehicle Control Module U1002 Lost Communication with Gateway Module U1110 Lost Communication with Clearance Sonar Module U110B Lost Communication with Parking Assist Control Module "B" HINT: DTC communication uses the CAN communication system. "Power Management1" output DTC is communication error in the CAN No. 2 bus. Power Management Control ECU / Techstream Display "Power Management2" DTC Code Detection Item U0164 Lost Communication with HVAC Control Module U1002 Lost Communication with Gateway Module HINT: DTC communication uses the CAN communication system. "Power Management2" output DTC is communication error in the power management bus. Transmission Control ECU / Techstream Display "Transmission Control" DTC Code Detection Item U0146 Lost Communication with Body ECU HINT: DTC communication uses the CAN communication system. Power Steering ECU / Techstream Display "EPS" DTC Code Detection Item U0129 Lost Communication with Brake System Control Module U0293 Lost Communication with Hybrid Control Module U1104 Lost Communication with Driving Support ECU HINT: DTC communication uses the CAN communication system. Skid control ECU (Brake booster with master cylinder) / Techstream Display "ABS/VSC/TRAC" DTC Code 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 Lost Communication with Hybrid Vehicle Control System HINT: DTC communication uses the CAN communication system. Main Body ECU (Multiplex network body ECU) )/ Techstream Display "Main Body" DTC Code Detection Item U0100 Lost Communication with ECM/ PCM "A" U0101 Lost Communication with TCM*8 U0127 Lost Communication with Tire Pressure Monitor Module U0129 Lost Communication with Brake System Control Module U0151 Lost Communication with Restraints Control Module U0155 Lost Communication with Instrument Panel Cluster U0163 Lost Communication with Navigation Control Module U0164 Lost Communication with HVAC Control Module U0182 Lost Communication with AFS U0199 Lost Communication with "Door Control Module A" U0200 Lost Communication with "Door Control Module B" U0208 Lost Communication with "Seat Control Module A" U0293 Lost Communication with Hybrid Powertrain Control Module U0327 Software Incompatibility with Vehicle Security U1002 Lost Communication with Gateway Module U1104 Lost Communication with Driving Support ECU U1110 Lost Communication with Clearance Sonar Module U1115 Lost Communication with Tilt & Telescopic Module U1133 Lost Communication with PMN Module HINT: DTC communication uses the CAN communication system. *8: Shift state signal can not received from hybrid vehicle control ECU Certification ECU (Smart key ECU)/ Techstream Display "Smart Access/ Smart Key/ Wireless Tuner" DTC Code Detection Item U0142 Lost Communication with Body Control Module "B" HINT: DTC communication uses the CAN communication system. Combination Meter / Techstream Display "Combination Meter" DTC Code Detection Item U0100 Lost Communication with ECM / PCM "A" U0129 Lost Communication with Brake System Control Module U0131 Lost Communication with Power Steering Control Module U0142 Lost Communication with Body Control Module "B" U0151 Lost Communication with Restraints Control Module HINT: DTC communication uses the CAN communication system. Air Conditioning Amplifier / Techstream Display "Air Conditioner" DTC Code Detection Item U0100 Communication Malfunction (Engine ECU) U0101 Lost Communication with TCM*8 U0131 Communication Malfunction (Electric Power Steering ECU) U0142 Communication Malfunction (Main body ECU) U0155 Communication Malfunction (Meter ECU) U0293 Communication Malfunction (Navigation ECU) HINT: DTC communication uses the CAN communication system. *8: Shift state signal can not received from hybrid vehicle control ECU AFS ECU (Headlight Swivel ECU) / Techstream Display "AFS/HL Auto Leveling" DTC Code Detection Item U0073 Control Module Communication Bus Off U0101 Lost Communication with TCM*8 U0126 Lost Communication with Steering Angle Sensor Module U0129 Lost Communication with Brake System Control Module U0142 Lost Communication with Body Control Module "B" U0163 Lost Communication with Navigation Control Module U0293 Lost Communication with Hybrid Vehicle Control System U1121 Lost Communication with Driver Seat Module HINT: DTC communication uses the CAN communication system. *8: Shift state signal can not received from hybrid vehicle control ECU Navigation ECU (Display and navigation module display) / Techstream Display "AVN1" DTC Code Detection Item U0073 Sending Malfunction (Navigation to APGS) U0100 Engine ECU Communication U0126 Steering Sensor Communication U0129 VSC(ECB*) ECU Communication U0155 Meter ECU Communication U0164 Air Conditioner ECU Communication U0293 HV ECU Communication U1110 Clearance Sonar ECU Communication HINT: DTC communication uses the CAN communication system. *: Electronically Control Brake Seat Belt Control ECU / Techstream Display "Pre-Collision1" DTC Code Detection Item U0122 Lost Communication with Vehicle Dynamics Control Module U0140 Lost Communication with J/B ECU U0151 Lost Communication with SRS Airbag ECU U1104 Lost Communication with Driving Support ECU HINT: DTC communication uses the CAN communication system. Driving Support ECU / Techstream Display "Pre-Collision2" DTC Code Detection Item U0122 Lost Communication with Vehicle Dynamics Control Module U0123 Lost Communication with Yaw Rate Sensor Module U0126 Lost Communication with Steering Angle Sensor Module U0235 Lost Communication with Cruise Control Front Distance Range Sensor U0293 Lost Communication with Hybrid Vehicle Control System U1002 Lost Communication with Gateway Module U1100 Lost Communication with Pre-Collision Module U1104 Lost Communication with Driving Support ECU U1121 Lost Communication with Driver Monitor ECU HINT: DTC communication uses the CAN communication system. Driving Support ECU / Techstream Display "Cruise Control (ACC)" DTC Code Detection Item U0122 Lost Communication with Vehicle Dynamics Control Module U0123 Lost Communication with Yaw Rate Sensor Module U0126 Lost Communication with Steering Angle Sensor Module U0235 Lost Communication with Cruise Control Front Distance Range Sensor U0293 Lost Communication with Hybrid Vehicle Control System U1104 Lost Communication with Driving Support ECU DTC communication uses the CAN communication system. Driving Support ECU / Techstream Display "Lane Keeping Assist" DTC Code Detection Item U0122 Lost Communication with Vehicle Dynamics Control Module U0123 Lost Communication with Yaw Rate Sensor Module U0131 Lost Communication with Power Steering Control Module U0235 Lost Communication with Cruise Control Front Distance Range Sensor U0293 Lost Communication with Hybrid Vehicle Control System U1104 Lost Communication with Driving Support ECU U1119*9 Lost Communication with Object Recognition ECU HINT: DTC communication uses the CAN communication system. *9: If U1119 is output alone, CAN communication is normal. Refer to Lane-keeping Assist System. Refer to «DTC U1119: Lost Communication with Object Recognition ECU (CAN)»(ref-398271-S03558350172011051600000) . Parking Assist ECU / Techstream Display "Parking Assist Monitor System" DTC Code Detection Item U0073 Control Module Communication Bus Off U0126 Lost Communication with Steering Angle Sensor Module U0129 Lost Communication with Brake System Control Module U0140 Lost Communication with Body Control Module U0293 Lost Communication with Hybrid Control Module U1110 Lost Communication with Clearance Sonar Module HINT: DTC communication uses the CAN communication system. Clearance Warning ECU / Techstream Display "Clearance Sonar1" DTC Code Detection Item U0101 Lost Communication with TCM*8 U0142 Lost Communication with Body Control Module "B" U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module U1114 Lost Communication With Main Switch Module HINT: DTC communication uses the CAN communication system. *8: Shift state signal can not received from hybrid vehicle control ECU Multiplex tilt and Telescopic ECU / Techstream Display "Tilt and Telescopic" DTC Code Detection Item B2621*10 Communication Interruption B2624*11 Vehicles Speed HINT: DTC communication uses the CAN communication system. *10: If B2621 is output alone (U1115 is not output), CAN communication is normal. Refer to Power Tilt and Telescopic Steering Column System. Refer to «DTC B2621: Communication Interruption»(ref-398293-S41850272752011051600000) . *11: If B2624 is output alone (U1115 is not output), CAN communication is normal. Refer to Power Tilt and Telescopic Steering Column System. Refer to «DTC B2624: Vehicles Speed Malfunction»(ref-398293-S33178727542011051600000) . Outer Mirror Control ECU LH/ Techstream Display "L-Mirror" DTC Code Detection Item U0142 Lost Communication With Body Control Module "B" HINT: DTC communication uses the CAN communication system. Outer Mirror Control ECU RH/ Techstream Display "R-Mirror" DTC Code Detection Item U0142 Lost Communication With Body Control Module "B" HINT: DTC communication uses the CAN communication system.
5. DTC COMBINATION TABLE CAN No. 1 Bus DTC Trouble Mode Output ECU Output DTC Hybrid Vehicle Control ECU Communication Stop Mode Power Management ECU Communication Stop Mode Transmission Control ECU Communication Stop Mode Skid Control ECU Communication Stop Mode Hybrid vehicle control ECU U0100 o*1 X X X U0122 o*1 X X o U0129 o*1 X X o U0140 o*1 X X X U0151 o*1 X X X U0293 o*1 X X X U1104 o*1 X X X U1107 o*1 o X X Power management control ECU (Electric Power Control) U0129 X o*1 X o U0293 o o*1 X X Transmission control ECU U0146 X X o*1 X Skid control ECU U0073 X X X o*1, *2 U0293 o X X o*1 Main body ECU U0100 o X X X U0101 o X X X U0129 X X X o U0151 X X X X U0155 X X X X U0163 X X X X U0182 X X X X U0293 o X X X U0327 X X X X U1104 X X X X U1133 X o X X Certification ECU U0142 X X X X Combination meter U0100 o X X X U0129 X X X o U0142 X X X X U0151 X X X X Navigation ECU U0073 X X X X U0100 o X X X U0129 X X X o U0155 X X X X U0293 o X X X AFS ECU U0073 X X X X U0101 o X X X U0129 X X X o U0142 X X X X U0293 o X X X Driving support ECU U0122 X X X o U0293 o X X X U1100 X X X X Seat belt control ECU U0122 X X X o U0140 X X X X U0151 X X X X U1104 X X X X DTC Trouble Mode Output ECU Output DTC Center Airbag Sensor Communication Stop Mode Main Body ECU Communication Stop Mode Certification ECU Communication Stop Mode Combination Meter Communication Stop Mode Hybrid vehicle control ECU U0100 X X X X U0122 X X X X U0129 X X X X U0140 X o X X U0151 o X X X U0293 X X X X U1104 X X X X U1107 X X X X Power management control ECU (Electric Power Control) U0129 X X X X U0293 X X X X Transmission control ECU U0146 X o X X Skid control ECU U0073 X X X X U0293 X X X X Main body ECU U0100 X o*1 X X U0101 X o*1 X X U0129 X o*1 X X U0151 o o*1 X X U0155 X o*1 X o U0163 X o*1 X X U0182 X o*1 X X U0293 X o*1 X X U0327 X o*1 o X U1104 X o*1 X X U1133 X o*1 X X Certification ECU U0142 X o o*1 X Combination meter U0100 X X X X U0129 X X X X U0142 X o X X U0151 o X X X Navigation ECU U0073 X X X X U0100 X X X X U0129 X X X X U0155 X X X o U0293 X X X X AFS ECU U0073 X X X X U0100 X X X X U0129 X X X X U0142 X o X X U0293 X X X X Driving support ECU U0122 X X X X U0293 X X X X U1100 X X X X Seat belt control ECU U0122 X X X X U0140 X o X X U0151 o X X X U1104 X X X X DTC Trouble Area Output ECU Output DTC Navigation ECU Communication Stop Mode AFS ECU Communication Stop Mode Driving Support ECU Communication Stop Mode Seat Belt Control ECU Communication Stop Mode Hybrid vehicle control ECU U0100 X X X X U0122 X X X X U0129 X X X X U0140 X X X X U0151 X X X X U0293 X X X X U1104 X X o X U1107 X X X X Power management control ECU (Electric Power Control) U0129 X X X X U0293 X X X X Transmission control ECU U0146 X X X X Skid control ECU U0073 X X X X U0293 X X X X Main body ECU U0100 X X X X U0101 X X X X U0129 X X X X U0151 X X X X U0155 X X X X U0163 o X X X U0182 X o X X U0293 X X X X U0327 X X X X U1104 X X o X U1133 X X X X Certification ECU U0142 X o*1 X X Combination meter U0100 X X X X U0129 X X X X U0142 X X X X U0151 X X X X Navigation ECU U0073 o*1 X X X U0100 o*1 X X X U0122 o*1 X X X U0155 o*1 X X X U0293 o*1 X X X AFS ECU U0073 X o*1 X X U0100 X o*1 X X U0129 X o*1 X X U0155 X o*1 X X U0293 X o*1 X X Driving support ECU U0122 X X o*1 X U0293 X X o*1 X U1100 X X o*1 o Seat belt control ECU U0122 X X X o*1 U0140 X X X o*1 U0151 X X X o*1 U1104 X X o o*1 HINT: o: Set X: Not set or may be set according to the malfunctioning part when one side of the CAN branch wire opens. *1: DTC is not output during communication error, but will be output as a history DTC (past DTC) when communication returns to normal. *2: DTC U0100, U0123, U0124 and U0126 are not stored when DTC U0073 has already been stored. Hybrid Vehicle Control ECU Communication Stop Mode. Refer to «Hybrid Vehicle Control ECU Communication Stop Mode»(ref-398325-S32027563922011051600000) Power Management ECU Communication Stop Mode. Refer to «Power Management Control ECU Communication Stop Mode»(ref-398325-S20845656262011051600000) Transmission Control ECU Communication Stop Mode. Refer to «Transmission Control ECU Communication Stop Mode»(ref-398325-S03780333922011051600000) Skid Control ECU Communication Stop Mode. Refer to «Skid Control ECU Communication Stop Mode»(ref-398325-S32140043942011051600000) Center Airbag Sensor Communication Stop Mode. Refer to «Center Airbag Sensor Communication Stop Mode»(ref-398325-S33167130282011051600000) Main Body ECU Communication Stop Mode. Refer to «Main Body ECU Communication Stop Mode»(ref-398325-S06296724882011051600000) Certification ECU Communication Stop Mode. Refer to «Certification ECU Communication Stop Mode»(ref-398325-S35196792312011051600000) Combination Meter ECU Communication Stop Mode. Refer to «Combination Meter ECU Communication Stop Mode»(ref-398325-S04478181032011051600000) Navigation ECU Communication Stop Mode. Refer to «Navigation ECU Communication Stop Mode»(ref-398325-S35028031762011051600000) AFS ECU Communication Stop Mode. Refer to «AFS ECU Communication Stop Mode»(ref-398325-S11666395522011051600000) Driving Support ECU Stop Mode. Refer to «Cruise Control ECU Communication Stop Mode»(ref-398325-S07889051092011051600000) Seat Belt Control ECU Stop Mode. Refer to «Seat Belt Control ECU Communication Stop Mode»(ref-398325-S12883948972011051600000)

DIAGNOSTIC TROUBLE CODE CHART

POWER MANAGEMENT CONTROL ECU OUTPUT DTCS (TECHSTREAM DISPLAY/POWER MANAGEMENT1)

POWER MANAGEMENT CONTROL ECU OUTPUT DTCS (TECHSTREAM DISPLAY/POWER MANAGEMENT2)

MAIN BODY ECU OUTPUT DTCS (TECHSTREAM DISPLAY/MAIN BODY)

DRIVING SUPPORT ECU OUTPUT DTCS (TECHSTREAM DISPLAY/PRE-COLLISION2)