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CAN Communication System (Diagnostic Codes (U1002-U0130)): Other Lexus IS III

Communication Devices 26 illustrations ~19211 words

CAUTION / NOTICE / HINT

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ]

HINT

  1. Operating the engine 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.
  2. 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.

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  1. RECONFIRM DTC OUTPUT Reconfirm DTCs. Body Electrical > Gateway > Trouble Codes Result Result Proceed to DTC U0104 not output from network gateway ECU (Techstream display: Gateway) A DTC U0104 is output from network gateway ECU (Techstream display: Gateway) B Result: 2 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U0104: Lost Communication with Driving Support ECU [04/2013 - ]»(ref-665855-S35199420262014102400000) Result: 1 A See step 2
  2. CHECK SUB BUS 13 Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Measure the resistance according to the value(s) in the table below. *1 DLC3 *a Component with harness connected (Driving Support ECU Assembly) Standard Resistance Tester Connection Condition Specified Condition Result M1-40 (CA1P) - M1-18 (CA1N) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Below 54 ohms: Short circuit between bus lines 70 ohms or more: Open circuit in main bus line M1-40 (CA1P) - M1-25 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short M1-18 (CA1N) - M1-25 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short M1-40 (CA1P) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short M1-18 (CA1N) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short Result Result Proceed to OK A Open circuit in CAN main bus line B Short circuit between bus lines C Ground short +B short D Result: 5 B See step 7 Result: 2 C See step 9 Result: 3 D See step 11 Result: 1 A See step 3
  3. CHECK FOR POWER SOURCE CIRCUIT (MILLIMETER WAVE RADAR SENSOR ASSEMBLY) Check the millimeter wave radar sensor assembly power source circuit. Refer to «Millimeter Wave Radar Sensor Power Source Circuit [04/2013 - ]»(ref-665795-S06780122462014102400000) Result Result OK NG Result: 2 NG REPAIR OR REPLACE POWER SOURCE CIRCUIT (MILLIMETER WAVE RADAR SENSOR ASSEMBLY) Result: 1 OK See step 4
  4. CHECK FOR DTC OUTPUT Reconnect the cable to the negative (-) battery terminal. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Body Electrical > Pre-Collision 2 > Clear DTCs Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Body Electrical > Pre-Collision 2 > Trouble Codes Result Result Proceed to DTC U1002 not output from driving support ECU assembly (Techstream display: Pre-Collision 2) A DTC U1002 is output from driving support ECU assembly (Techstream display: Pre-Collision 2) B Result: 1 A SYMPTOM SIMULATION. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000) Result: 2 B See step 5
  5. REPLACE DRIVING SUPPORT ECU ASSEMBLY Replace the driving support ECU assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S04305393192014102400000) Result Result NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC OUTPUT Reconnect the cable to the negative (-) battery terminal. Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Body Electrical > Pre-Collision 2 > Trouble Codes Result Result Proceed to DTC U1002 is output from driving support ECU assembly (Techstream display: Pre-Collision 2) A DTC U1002 not output from driving support ECU assembly (Techstream display: Pre-Collision 2) B Result: 1 A END Result: 2 B REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S24004513992014102400000)
  7. CHECK FOR OPEN IN SUB BUS 13 MAIN LINES (DRIVING SUPPORT ECU ASSEMBLY) Disconnect the M1 driving support ECU assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition M1-40 (CA1P) - M1-18 (CA1N) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to Driving Support ECU Assembly) Result Result OK NG Result: 1 OK REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S04305393192014102400000) Result: 2 NG See step 8
  8. CHECK FOR OPEN IN SUB BUS 13 MAIN LINES (MILLIMETER WAVE RADAR SENSOR ASSEMBLY) Reconnect the M1 driving support ECU assembly connector. Disconnect the B8 millimeter wave radar sensor assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B8-3 (CA1P) - B8-2 (CA1N) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to Millimeter Wave Radar Sensor Assembly) Result Result OK NG Result: 1 OK REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S24004513992014102400000) Result: 2 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR
  9. CHECK FOR SHORT IN SUB BUS 13 LINES (DRIVING SUPPORT ECU ASSEMBLY) Disconnect the M1 driving support ECU assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition M1-40 (CA1P) - M1-18 (CA1N) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to Driving Support ECU Assembly) Result Result OK NG Result: 1 OK REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S04305393192014102400000) Result: 2 NG See step 10
  10. CHECK FOR SHORT IN SUB BUS 13 LINES (MILLIMETER WAVE RADAR SENSOR ASSEMBLY) Reconnect the M1 driving support ECU assembly connector. Disconnect the B8 millimeter wave radar sensor assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B8-3 (CA1P) - B8-2 (CA1N) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to Millimeter Wave Radar Sensor Assembly) Result Result OK NG Result: 1 OK REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S24004513992014102400000) Result: 2 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR
  11. CHECK FOR SHORT IN SUB BUS 13 LINE (DRIVING SUPPORT ECU ASSEMBLY) Disconnect the M1 driving support ECU assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Purpose M1-40 (CA1P) - M1-25 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short M1-18 (CA1N) - M1-25 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short M1-40 (CA1P) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short M1-18 (CA1N) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short *1 DLC3 *a Front view of wire harness connector (to Driving Support ECU Assembly) HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 13 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 13 inspection. Result Result OK NG Result: 1 OK REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S04305393192014102400000) Result: 2 NG See step 12
  12. CHECK FOR SHORT IN SUB BUS 13 LINE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY) Reconnect the M1 driving support ECU assembly connector. Disconnect the B8 millimeter wave radar sensor assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Purpose B8-3 (CA1P) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short B8-2 (CA1N) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short B8-3 (CA1P) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short B8-2 (CA1N) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short *1 DLC3 *a Front view of wire harness connector (to Millimeter Wave Radar Sensor Assembly) HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 13 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 13 inspection. Result Result OK NG Result: 1 OK REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S24004513992014102400000) Result: 2 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 60 seconds, and then drive the vehicle at a speed of 60 km/h (37 mph) or more for 7 seconds or more. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ]

HINT

  1. Operating the engine 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.
  2. 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.

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  1. CHECK SUB BUS 2 Disconnect the cable from the negative (-) battery terminal. Measure the resistance according to the value(s) in the table below. *a Component with harness connector (Network Gateway ECU) Standard Resistance Tester Connection Condition Specified Condition Result K47-13 (CA2H) - K47-12 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Below 54 ohms: Short circuit between bus lines 70 ohms or higher: Open circuit in a main bus line K47-13 (CA2H) - K47-4 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K47-12 (CA2L) - K47-4 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K47-13 (CA2H) - K47-2 (BATT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K47-12 (CA2L) - K47-2 (BATT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short Result Result Proceed to OK A Open circuit in CAN main bus line B Short circuit between bus lines C Ground short +B short D Result: 4 B See step 3 Result: 3 C See step 4 Result: 1 D See step 6 Result: 2 A See step 2
  2. CHECK FOR DTC OUTPUT Reconnect the cable to the negative (-) battery terminal. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Body Electrical > Gateway > Clear DTCs Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Body Electrical > Gateway > Trouble Codes Result Result Proceed to DTC U1002 is not output A DTC U1002 is output B Result: 2 A SYMPTOM SIMULATION. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000) Result: 4 B REPLACE NETWORK GATEWAY ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665859-S37422967062014102400000)
  3. CHECK FOR OPEN IN SUB BUS 2 MAIN LINES (NETWORK GATEWAY ECU) Disconnect the K47 network gateway ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K47-13 (CA2H) - K47-12 (CA2L) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to Network Gateway ECU) Result Result OK NG Result: 1 OK REPLACE NETWORK GATEWAY ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665859-S37422967062014102400000) Result: 2 NG See step 5
  4. CHECK FOR SHORT IN SUB BUS 2 LINES (NETWORK GATEWAY ECU) Disconnect the K47 network gateway ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K47-13 (CA2H) - K47-12 (CA2L) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to Network Gateway ECU) Result Result OK NG Result: 1 OK REPLACE NETWORK GATEWAY ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665859-S37422967062014102400000) Result: 2 NG See step 7
  5. CHECK FOR OPEN IN SUB BUS 2 MAIN LINES (NO. 2 CAN JUNCTION TERMINAL) Reconnect the K47 network gateway ECU connector. Disconnect the K107 No. 2 CAN junction terminal connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K107-3 (CANH) - K107-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to No. 2 CAN Junction Terminal) Result Result OK NG Result: 1 OK REPLACE NO. 2 CAN JUNCTION TERMINAL Result: 2 NG See step 8
  6. CHECK FOR SHORT IN SUB BUS 2 LINE (NO. 3 CAN JUNCTION CONNECTOR) Disconnect the K111 No. 3 CAN junction connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 - - *a Front view of wire harness connector (to No. 3 CAN Junction Connector) *b to Absorber Control ECU (w/ AVS System) *c to 4WD ECU Assembly (for AWD) *d to No. 4 CAN Junction Connector *e to Network Gateway ECU - - Standard Resistance Tester Connection Condition Specified Condition Purpose Connected to K111-1 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Absorber control ECU*1 K111-12 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-2 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short 4WD ECU assembly*2 K111-13 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-3 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 4 CAN junction connector K111-14 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-4 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Network gateway ECU K111-15 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-1 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Absorber control ECU*1 K111-12 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K111-2 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short 4WD ECU assembly*2 K111-13 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K111-3 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 4 CAN junction connector K111-14 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K111-4 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Network gateway ECU K111-15 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *1: w/ AVS System *2: for AWD HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result Proceed to OK A NG (Network gateway ECU main line) B NG (ECU or sensor branch line) C NG (No. 4 CAN junction connector main line) D Result: 1 A REPLACE NO. 3 CAN JUNCTION CONNECTOR Result: 2 B See step 9 Result: 3 C See step 20 Result: 4 D See step 12
  7. CHECK FOR SHORT IN SUB BUS 2 LINES (NO. 2 CAN JUNCTION TERMINAL) Reconnect the K47 network gateway ECU connector. Disconnect the K107 No. 2 CAN junction terminal connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K107-3 (CANH) - K107-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms *a Front view of wire harness connector (to No. 2 CAN Junction Terminal) Result Result OK NG Result: 1 OK REPLACE NO. 2 CAN JUNCTION TERMINAL Result: 2 NG See step 10
  8. CHECK FOR OPEN IN SUB BUS 2 MAIN LINES (NO. 3 CAN JUNCTION CONNECTOR) Reconnect the K107 No. 2 CAN junction terminal connector. Disconnect the K111 No. 3 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to K111-3 (CANH) - K111-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 4 CAN junction connector K111-4 (CANH) - K111-15 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Network gateway ECU *a Front view of wire harness connector (to No. 3 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to Network Gateway ECU Result Result Proceed to OK A NG (Network gateway ECU main line) B NG (No. 4 CAN junction connector main line) C Result: 1 A REPLACE NO. 3 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NETWORK GATEWAY ECU - NO. 3 CAN JUNCTION CONNECTOR) Result: 3 C See step 11
  9. CHECK FOR SHORT IN SUB BUS 2 LINE (NETWORK GATEWAY ECU) Reconnect the K111 No. 3 CAN junction connector. Disconnect the K47 network gateway ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Purpose K47-13 (CA2H) - K47-4 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K47-12 (CA2L) - K47-4 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K47-13 (CA2H) - K47-2 (BATT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K47-12 (CA2L) - K47-2 (BATT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *a Front view of wire harness connector (to Network Gateway ECU) HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result OK NG Result: 1 OK REPLACE NETWORK GATEWAY ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665859-S37422967062014102400000) Result: 2 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NETWORK GATEWAY ECU - NO. 3 CAN JUNCTION CONNECTOR)
  10. CHECK FOR SHORT IN SUB BUS 2 LINES (NO. 3 CAN JUNCTION CONNECTOR) Reconnect the K107 No. 2 CAN junction terminal connector. Disconnect the K111 No. 3 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to K111-1 (CANH) - K111-12 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Absorber control ECU*1 K111-2 (CANH) - K111-13 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher 4WD ECU assembly*2 K111-3 (CANH) - K111-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 4 CAN junction connector K111-4 (CANH) - K111-15 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Network gateway ECU *a Front view of wire harness connector (to No. 3 CAN Junction Connector) *b to Absorber Control ECU (w/ AVS System) *c to 4WD ECU Assembly (for AWD) *d to No. 4 CAN Junction Connector *e to Network Gateway ECU *1: w/ AVS System *2: for AWD Result Result Proceed to OK A NG (Network gateway ECU main line) B NG (ECU or sensor branch line) C NG (No. 4 CAN junction connector main line) D Result: 1 A REPLACE NO. 3 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NETWORK GATEWAY ECU - NO. 3 CAN JUNCTION CONNECTOR) Result: 3 C See step 22 Result: 4 D See step 13
  11. CHECK FOR OPEN IN SUB BUS 2 MAIN LINES (NO. 4 CAN JUNCTION CONNECTOR) Reconnect the K111 No. 3 CAN junction connector. Disconnect the K113 No. 4 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to K113-1 (CANH) - K113-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 3 CAN junction connector K113-2 (CANH) - K113-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 10 CAN junction connector *a Front view of wire harness connector (to No. 4 CAN Junction Connector) *b to No. 3 CAN Junction Connector *c to No. 10 CAN Junction Connector Result Result Proceed to OK A NG (No. 3 CAN junction connector main line) B NG (No. 10 CAN junction connector main line) C Result: 1 A REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 3 C See step 14
  12. CHECK FOR SHORT IN SUB BUS 2 LINE (NO. 4 CAN JUNCTION CONNECTOR) Reconnect the K111 No. 3 CAN junction connector. Disconnect the K113 No. 4 CAN junction connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 - - *a Front view of wire harness connector (to No. 4 CAN Junction Connector) *b to No. 3 CAN Junction Connector *c to No. 10 CAN Junction Connector *d to Option Connector (Bus Buffer ECU) (w/ Option Connector) *e to Driving Support ECU Assembly (w/ Pre-collision System) *f to Clearance Warning ECU Assembly (w/ Intuitive Parking Assist System) Standard Resistance Tester Connection Condition Specified Condition Purpose Connected to K113-1 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 3 CAN junction connector K113-12 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-2 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 10 CAN junction connector K113-13 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-3 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Option connector (Bus buffer ECU)*1 K113-14 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-5 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Driving support ECU assembly*2 K113-16 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-6 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Clearance warning ECU assembly*3 K113-17 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-1 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 3 CAN junction connector K113-12 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-2 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 10 CAN junction connector K113-13 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-3 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Option connector (Bus buffer ECU)*1 K113-14 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-5 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Driving support ECU assembly*2 K113-16 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-6 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Clearance warning ECU assembly*3 K113-17 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *1: w/ Option connector *2: w/ Pre-collision system *3: w/ Intuitive parking assist system HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result Proceed to OK A NG (ECU or sensor branch line) B NG (No. 3 CAN junction connector main line) C NG (No. 10 CAN junction connector main line) D Result: 1 A REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 2 B See step 20 Result: 3 C REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 4 D See step 15
  13. CHECK FOR SHORT IN SUB BUS 2 LINES (NO. 4 CAN JUNCTION CONNECTOR) Reconnect the K111 No. 3 CAN junction connector. Disconnect the K113 No. 4 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to K113-1 (CANH) - K113-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 3 CAN junction connector K113-2 (CANH) - K113-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 10 CAN junction connector K113-3 (CANH) - K113-14 (CANL) Cable disconnected from negative (-) battery terminal 1 Mohms or higher Option connector (Bus buffer ECU)*1 K113-5 (CANH) - K113-16 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Driving support ECU assembly*2 K113-6 (CANH) - K113-17 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Clearance warning ECU assembly*3 *a Front view of wire harness connector (to No. 4 CAN Junction Connector) *b to No. 3 CAN Junction Connector *c to No. 10 CAN Junction Connector *d to Option Connector (Bus Buffer ECU) (w/ Option Connector) *e to Driving Support ECU Assembly (w/ Pre-collision System) *f to Clearance Warning ECU Assembly (w/ Intuitive Parking Assist System) *1: w/ Option connector *2: w/ Pre-collision system *3: w/ Intuitive parking assist system Result Result Proceed to OK A NG (No. 3 CAN junction connector main line) B NG (ECU or sensor branch line) C NG (No. 10 CAN junction connector main line) D Result: 1 A REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 3 C See step 22 Result: 4 D See step 17
  14. CHECK FOR OPEN IN SUB BUS 2 MAIN LINES (NO. 10 CAN JUNCTION CONNECTOR) Reconnect the K113 No. 4 CAN junction connector. Disconnect the S17 No. 10 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to S17-1 (CANH) - S17-7 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 4 CAN junction connector S17-2 (CANH) - S17-8 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 8 CAN junction connector *a Front view of wire harness connector (to No. 10 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to No. 8 CAN Junction Connector Result Result Proceed to OK A NG (No. 4 CAN junction connector main line) B NG (No. 8 CAN junction connector main line) C Result: 1 A REPLACE NO. 10 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 3 C See step 16
  15. CHECK FOR SHORT IN SUB BUS 2 LINE (NO. 10 CAN JUNCTION CONNECTOR) Reconnect the K113 No. 4 CAN junction connector. Disconnect the S17 No. 10 CAN junction connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 - - *a Front view of wire harness connector (to No. 10 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to No. 8 CAN Junction Connector *d to Lane Departure Warning Camera (w/ Lane Departure Alert System) Standard Resistance Tester Connection Condition Specified Condition Purpose Connected to S17-1 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 4 CAN junction connector S17-7 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short S17-2 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 8 CAN junction connector S17-8 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short S17-3 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Lane departure warning camera* S17-9 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short S17-1 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 4 CAN junction connector S17-7 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short S17-2 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 8 CAN junction connector S17-8 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short S17-3 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Lane departure warning camera* S17-9 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *: w/ Lane departure alert system HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result Proceed to OK A NG (ECU or sensor branch line) B NG (No. 4 CAN junction connector main line) C NG (No. 8 CAN junction connector main line) D Result: 1 A REPLACE NO. 10 CAN JUNCTION CONNECTOR Result: 2 B See step 20 Result: 3 C REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 4 D See step 18
  16. CHECK FOR OPEN IN SUB BUS 2 MAIN LINES (NO. 8 CAN JUNCTION CONNECTOR) Reconnect the S17 No. 10 CAN junction connector. Disconnect the Q55 No. 8 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to Q55-1 (CANH) - Q55-7 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 10 CAN junction connector Q55-2 (CANH) - Q55-8 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 2 CAN junction terminal *a Front view of wire harness connector (to No. 8 CAN Junction Connector) *b to No. 10 CAN Junction Connector *c to No. 2 CAN Junction Terminal Result Result Proceed to OK A NG (No. 10 CAN junction connector main line) B NG (No. 2 CAN junction terminal main line) C Result: 1 A REPLACE NO. 8 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) Result: 3 C REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 2 CAN JUNCTION TERMINAL)
  17. CHECK FOR SHORT IN SUB BUS 2 LINES (NO. 10 CAN JUNCTION CONNECTOR) Reconnect the K113 No. 4 CAN junction connector. Disconnect the S17 No. 10 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to S17-1 (CANH) - S17-7 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 4 CAN junction connector S17-2 (CANH) - S17-8 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 8 CAN junction connector S17-3 (CANH) - S17-9 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Lane departure warning camera* *a Front view of wire harness connector (to No. 10 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to No. 8 CAN Junction Connector *d to Lane Departure Warning Camera (w/ Lane Departure Alert System) *: w/ Lane departure alert system Result Result Proceed to OK A NG (No. 4 CAN junction connector main line) B NG (ECU or sensor branch line) C NG (No. 8 CAN junction connector main line) D Result: 1 A REPLACE NO. 10 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 3 C See step 22 Result: 4 D See step 19
  18. CHECK FOR SHORT IN SUB BUS 2 LINE (NO. 8 CAN JUNCTION CONNECTOR) Reconnect the S17 No. 10 CAN junction connector. Disconnect the Q55 No. 8 CAN junction connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 - - *a Front view of wire harness connector (to No. 8 CAN Junction Connector) *b to No. 10 CAN Junction Connector *c to No. 2 CAN Junction Terminal *d to Blind Spot Monitor Sensor LH (w/ Blind Spot Monitor System) Standard Resistance Tester Connection Condition Specified Condition Purpose Connected to Q55-1 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 10 CAN junction connector Q55-7 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short Q55-2 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 2 CAN junction terminal Q55-8 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short Q55-3 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Blind spot monitor sensor LH* Q55-9 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short Q55-1 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 10 CAN junction connector Q55-7 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short Q55-2 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 2 CAN junction terminal Q55-8 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short Q55-3 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Blind spot monitor sensor LH* Q55-9 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *: w/ Blind spot monitor system HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result Proceed to OK A NG (No. 10 CAN junction connector main line) B NG (ECU or sensor branch line) C NG (No. 2 CAN junction terminal main line) D Result: 1 A REPLACE NO. 8 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) Result: 3 C See step 20 Result: 4 D See step 21
  19. CHECK FOR SHORT IN SUB BUS 2 LINES (NO. 8 CAN JUNCTION CONNECTOR) Reconnect the S17 No. 10 CAN junction connector. Disconnect the Q55 No. 8 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to Q55-1 (CANH) - Q55-7 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 10 CAN junction connector Q55-2 (CANH) - Q55-8 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 2 CAN junction terminal Q55-3 (CANH) - Q55-9 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Blind spot monitor sensor LH* *a Front view of wire harness connector (to No. 8 CAN Junction Connector) *b to No. 10 CAN Junction Connector *c to No. 2 CAN Junction Terminal *d to Blind Spot Monitor Sensor LH (w/ Blind Spot Monitor System) *: w/ Blind spot monitor system Result Result Proceed to OK A NG (No. 10 CAN junction connector main line) B NG (ECU or sensor branch line) C NG (No. 2 CAN junction terminal main line) D Result: 1 A REPLACE NO. 8 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) Result: 3 C See step 22 Result: 4 D REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 2 CAN JUNCTION TERMINAL)
  20. CHECK FOR SHORT IN SUB BUS 2 LINE (ECU, SENSOR) Reconnect all wire harness connectors. Disconnect the connector that includes terminals CANH and CANL from the ECU (or sensor) to which the bus line shorted to +B or shorted to GND is connected. Refer to «TERMINALS OF ECU [04/2013 - ]»(ref-665785-S02934720632014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Purpose K47-13 (CA2H) - K47-4 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K47-12 (CA2L) - K47-4 (GND) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K47-13 (CA2H) - K47-2 (BATT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K47-12 (CA2L) - K47-2 (BATT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short *a Component with harness connector (Network Gateway ECU) HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. If the resistance becomes normal when the connector is disconnected from the ECU, there may be a short in the ECU. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result OK NG Result: 1 OK REPLACE CORRESPONDING ECU OR SENSOR Result: 2 NG REPAIR OR REPLACE CORRESPONDING ECU OR SENSOR BUS LINES OR CONNECTOR
  21. CHECK FOR SHORT IN SUB BUS 2 LINE (NO. 2 CAN JUNCTION TERMINAL) Reconnect the Q55 No. 8 CAN junction connector. Disconnect the K107 No. 2 CAN junction terminal connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 *a Front view of wire harness connector (to No. 2 CAN Junction Terminal) Standard Resistance Tester Connection Condition Specified Condition Purpose K107-3 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K107-2 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K107-3 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K107-2 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 2 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 2 inspection. Result Result OK NG Result: 1 OK REPLACE NO. 2 CAN JUNCTION TERMINAL Result: 2 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 2 CAN JUNCTION TERMINAL)
  22. CHECK FOR SHORT IN SUB BUS 2 LINES (ECU, SENSOR) Reconnect all wire harness connectors. Disconnect the connector that includes terminals CANH and CANL from the ECU (or sensor) to which the short circuited branch line is connected. Refer to «TERMINALS OF ECU [04/2013 - ]»(ref-665785-S02934720632014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K47-13 (CA2H) - K47-12 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 ohms HINT: If the resistance becomes normal (between 54 and 69 ohms) when the connector is disconnected from the ECU (or sensor), there may be a short in the ECU (or sensor). *a Component with harness connector (Network Gateway ECU) Result Result OK NG Result: 1 OK REPLACE CORRESPONDING ECU OR SENSOR Result: 2 NG REPAIR OR REPLACE CORRESPONDING ECU OR SENSOR BUS LINES OR CONNECTOR

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 21 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.

PROCEDURE

  1. RECONFIRM DTC OUTPUT Body Electrical > Gateway > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Gateway of the network gateway ECU, this indicates a sub bus 2 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 2. Result Result Proceed to U1002 is not output from network gateway ECU (Techstream display: Gateway) A U1002 is output from network gateway ECU (Techstream display: Gateway) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [04/2013 - ]»(ref-665856-S14717889602014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 2 LINES (CLEARANCE WARNING ECU ASSEMBLY BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the K44 clearance warning ECU assembly connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Clearance Warning ECU Assembly) Standard Resistance Tester Connection Condition Specified Condition K44-17 (R1) - K44-18 (R2) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Clearance Warning ECU Assembly) Standard Resistance Tester Connection Condition Specified Condition K44-27 (E) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Clearance Warning ECU Assembly) Standard Voltage Tester Connection Condition Specified Condition K44-12 (IG) - Body ground Engine switch on (IG) 11 to 14 V Result Result OK NG Result: 2 OK REPLACE CLEARANCE WARNING ECU ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665847-S33834054592014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 20 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.
  1. RECONFIRM DTC OUTPUT Body Electrical > Main Body > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Main Body of the main body ECU (multiplex network body ECU), this indicates a sub bus 1 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 1. Result Result Proceed to U1002 is not output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) A U1002 is output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Main Body ECU) [04/2013 - ]»(ref-665856-S20746887902014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 1 LINES (MULTIPLEX TILT AND TELESCOPIC ECU BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the K19 multiplex tilt and telescopic ECU connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) Standard Resistance Tester Connection Condition Specified Condition K19-3 (CANP) - K19-11 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) Standard Resistance Tester Connection Condition Specified Condition K19-1 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms K19-8 (GND2) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) Standard Voltage Tester Connection Condition Specified Condition K19-2 (+B) - Body ground Always 11 to 14 V K19-9 (ECUB) - Body ground Always 11 to 14 V K19-10 (IG) - Body ground Engine switch on (IG) 11 to 14 V Result Result OK NG Result: 2 OK REPLACE MULTIPLEX TILT AND TELESCOPIC ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665793-S20699142842014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 21 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.
  1. RECONFIRM DTC OUTPUT Body Electrical > Gateway > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Gateway of the network gateway ECU, this indicates a sub bus 2 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 2. Result Result Proceed to U1002 is not output from network gateway ECU (Techstream display: Gateway) A U1002 is output from network gateway ECU (Techstream display: Gateway) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [04/2013 - ]»(ref-665856-S14717889602014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 2 LINES (OPTION CONNECTOR (BUS BUFFER ECU) BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the K102 option connector (bus buffer ECU) connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Option Connector (Bus Buffer ECU)) Standard Resistance Tester Connection Condition Specified Condition K102-4 (CAN+) - K102-8 (CAN-) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (OPTION CONNECTOR (BUS BUFFER ECU)) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Option Connector (Bus Buffer ECU)) Standard Resistance Tester Connection Condition Specified Condition K102-7 (RGN1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Option Connector (Bus Buffer ECU)) Standard Voltage Tester Connection Condition Specified Condition K102-1 (R+B) - Body ground Always 11 to 14 V Result Result OK NG Result: 2 OK REPLACE DEALER-INSTALLED OPTION Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 20 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure. If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

HINT

  1. Operating the engine 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.
  2. 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.

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  1. CHECK SUB BUS 1 Disconnect the cable from the negative (-) battery terminal. Measure the resistance according to the value(s) in the table below. *1 DLC3 *a Component with harness connector (Main Body ECU (Multiplex Network Body ECU)) Standard Resistance Tester Connection Condition Specified Condition Result K1-9 (CANP) - K1-10 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Below 54 ohms: Short circuit between bus lines 70 ohms or more: Open circuit in main bus line K1-9 (CANP) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K1-10 (CANN) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K1-9 (CANP) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K1-10 (CANN) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short Result Result Proceed to OK (w/ Seat position memory system) A OK (w/o Seat position memory system) B Open circuit in CAN main bus line C Short circuit between bus lines D Ground short +B short E Result: 5 B See step 3 Result: 2 C See step 8 Result: 3 D See step 12 Result: 6 E See step 17 Result: 1 A See step 2
  2. CHECK FOR DTC OUTPUT Reconnect the cable to the negative (-) battery terminal. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Body Electrical > Main Body > Clear DTCs Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC U1002 not output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) A DTC U1002 is output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) B Result: 1 A SYMPTOM SIMULATION. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000) Result: 2 B REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)
  3. CHECK FOR OPEN IN SUB BUS 1 LINES (MULTIPLEX TILT AND TELESCOPIC ECU BRANCH LINE) Disconnect the K19 multiplex tilt and telescopic ECU connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) Standard Resistance Tester Connection Condition Specified Condition K19-3 (CANP) - K19-11 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG See step 7 Result: 3 OK See step 4
  4. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) Standard Resistance Tester Connection Condition Specified Condition K19-1 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms K19-8 (GND2) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) Standard Voltage Tester Connection Condition Specified Condition K19-2 (+B) - Body ground Always 11 to 14 V K19-9 (ECUB) - Body ground Always 11 to 14 V K19-10 (IG) - Body ground Engine switch on (IG) 11 to 14 V Result Result OK NG Result: 1 NG REPAIR OR REPLACE POWER SOURCE CIRCUIT (MULTIPLEX TILT AND TELESCOPIC ECU) Result: 2 OK See step 5
  5. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Replace the main body ECU (multiplex network body ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result Result NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC OUTPUT Reconnect the cable to the negative (-) battery terminal. Turn the engine switch on (IG). Check for DTCs. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC U1002 is output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) A DTC U1002 not output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) B Result: 1 A END Result: 2 B REPLACE MULTIPLEX TILT AND TELESCOPIC ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665793-S20699142842014102400000)
  7. CHECK FOR OPEN IN SUB BUS 1 LINES (NO. 4 CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) Reconnect the K19 multiplex tilt and telescopic ECU connector. Disconnect the K113 No. 4 CAN junction connector. *a Component with harness connected (No. 4 CAN Junction Connector) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K113-10 (CANH) - K113-21 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Result Result OK NG Result: 5 OK REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 4 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU)
  8. CHECK FOR OPEN IN SUB BUS 1 LINES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Disconnect the K1 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) Standard Resistance Tester Connection Condition Specified Condition K1-9 (CANP) - K1-10 (CANN) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Result Result OK NG Result: 2 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 NG See step 9
  9. CHECK FOR OPEN IN SUB BUS 1 LINES (NO. 1 CAN JUNCTION TERMINAL) Reconnect the K1 main body ECU (multiplex network body ECU) connector. Disconnect the K106 No. 1 CAN junction terminal connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to No. 1 CAN Junction Terminal) Standard Resistance Tester Connection Condition Specified Condition K106-3 (CANH) - K106-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Result Result OK NG Result: 2 OK REPLACE NO. 1 CAN JUNCTION TERMINAL Result: 1 NG See step 10
  10. CHECK FOR OPEN IN SUB BUS 1 LINES (NO. 4 CAN JUNCTION CONNECTOR) Reconnect the K106 No. 1 CAN junction terminal connector. Disconnect the K113 No. 4 CAN junction connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to No. 4 CAN Junction Connector) *b to No. 3 CAN Junction Connector *c to Main Body ECU (Multiplex Network Body ECU) Standard Resistance Tester Connection Condition Specified Condition Connected to K113-7 (CANH) - K113-18 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 3 CAN junction connector K113-8 (CANH) - K113-19 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Main body ECU (multiplex network body ECU) Result Result Proceed to OK A NG (Main body ECU (multiplex network body ECU) main line) B NG (No. 3 CAN junction connector main line) C Result: 2 A REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 1 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 4 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Result: 3 C See step 11
  11. CHECK FOR OPEN IN SUB BUS 1 LINES (NO. 3 CAN JUNCTION CONNECTOR) Reconnect the K113 No. 4 CAN junction connector. Disconnect the K111 No. 3 CAN junction connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to No. 3 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to No. 1 CAN Junction Terminal Standard Resistance Tester Connection Condition Specified Condition Connected to K111-7 (CANH) - K111-18 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 4 CAN junction connector K111-11 (CANH) - K111-22 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 1 CAN junction terminal Result Result Proceed to OK A NG (No. 4 CAN junction connector main line) B NG (No. 1 CAN junction terminal main line) C Result: 2 A REPLACE NO. 3 CAN JUNCTION CONNECTOR Result: 1 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 3 C REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION TERMINAL)
  12. CHECK FOR SHORT IN SUB BUS 1 LINES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Disconnect the K1 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) Standard Resistance Tester Connection Condition Specified Condition K1-9 (CANP) - K1-10 (CANN) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Result Result OK NG Result: 2 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 NG See step 13
  13. CHECK FOR SHORT IN SUB BUS 1 LINES (NO. 1 CAN JUNCTION TERMINAL) Reconnect the K1 main body ECU (multiplex network body ECU) connector. Disconnect the K106 No. 1 CAN junction terminal connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to No. 1 CAN Junction Terminal) Standard Resistance Tester Connection Condition Specified Condition K106-3 (CANH) - K106-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Result Result OK NG Result: 2 OK REPLACE NO. 1 CAN JUNCTION TERMINAL Result: 1 NG See step 14
  14. CHECK FOR SHORT IN SUB BUS 1 LINES (NO. 4 CAN JUNCTION CONNECTOR) Reconnect the K106 No. 1 CAN junction terminal connector. Disconnect the K113 No. 4 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to K113-7 (CANH) - K113-18 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 3 CAN junction connector K113-8 (CANH) - K113-19 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms Main body ECU (multiplex network body ECU) K113-9 (CANH) - K113-20 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Outer mirror control ECU assembly (for driver side) *1 K113-10 (CANH) - K113-21 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Multiplex tilt and telescopic ECU*2 K113-11 (CANH) - K113-22 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Front power seat switch LH*1 *a Front view of wire harness connector (to No. 4 CAN Junction Connector) *b to No. 3 CAN Junction Connector *c to Main Body ECU (Multiplex Network Body ECU) *d to Outer Mirror Control ECU Assembly (for Driver Side) (w/ Seat Position Memory System) *e to Multiplex Tilt and Telescopic ECU (w/ Power Tilt and Power Telescopic System) *f to Front Power Seat Switch LH (w/ Seat Position Memory System) *1: w/ Seat position memory system *2: w/ Power tilt and Power telescopic system Result Result Proceed to OK A NG (Main body ECU (multiplex network body ECU) main line) B NG (ECU or sensor branch line) C NG (No. 3 CAN junction connector main line) D Result: 2 A REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 1 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 4 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Result: 3 C See step 16 Result: 4 D See step 15
  15. CHECK FOR SHORT IN SUB BUS 1 LINES (NO. 3 CAN JUNCTION CONNECTOR) Reconnect the K113 No. 4 CAN junction connector. Disconnect the K111 No. 3 CAN junction connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Connected to K111-7 (CANH) - K111-18 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 4 CAN junction connector K111-10 (CANH) - K111-21 (CANL) Cable disconnected from negative (-) battery terminal 200 ohms or higher Outer mirror control ECU assembly (for front passenger side) * K111-11 (CANH) - K111-22 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 ohms No. 1 CAN junction terminal *a Front view of wire harness connector (to No. 3 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to Outer Mirror Control ECU Assembly (for Front Passenger Side) (w/ Seat Position Memory System) *d to No. 1 CAN Junction Terminal *: w/ Seat position memory system Result Result Proceed to OK A NG (No. 4 CAN junction connector main line) B NG (ECU or sensor branch line) C NG (No. 1 CAN junction terminal main line) D Result: 2 A REPLACE NO. 3 CAN JUNCTION CONNECTOR Result: 1 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 4 D REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION TERMINAL) Result: 3 C See step 16
  16. CHECK FOR SHORT IN SUB BUS 1 LINES (ECU, SENSOR) Reconnect all wire harness connectors. Disconnect the connector that includes terminals CANH and CANL from the ECU (or sensor) to which the short circuited branch line is connected. Refer to «TERMINALS OF ECU [04/2013 - ]»(ref-665785-S02934720632014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K1-9 (CANP) - K1-10 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms HINT: If the resistance becomes normal (between 54 and 69 ohms) when the connector is disconnected from the ECU (or sensor), there may be a short in the ECU (or sensor). *a Component with harness connector (Main Body ECU (Multiplex Network Body ECU)) Result Result OK NG Result: 1 OK REPLACE CORRESPONDING ECU OR SENSOR Result: 2 NG REPAIR OR REPLACE CORRESPONDING ECU SENSOR BUS LINES OR CONNECTOR
  17. CHECK FOR SHORT IN SUB BUS 1 LINE (NO. 4 CAN JUNCTION CONNECTOR) Disconnect the K113 No. 4 CAN junction connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 - - *a Front view of wire harness connector (to No. 4 CAN Junction Connector) *b to No. 3 CAN Junction Connector *c to Main Body ECU (Multiplex Network Body ECU) *d to Outer Mirror Control ECU Assembly (for Driver Side) (w/ Seat Position Memory System) *e to Multiplex Tilt and Telescopic ECU (w/ Power Tilt and Power Telescopic System) *f to Front Power Seat Switch LH (w/ Seat Position Memory System) Standard Resistance Tester Connection Condition Specified Condition Purpose Connected to K113-7 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 3 CAN junction connector K113-18 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-8 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Main body ECU (Multiplex network body ECU) K113-19 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-9 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Outer mirror control ECU assembly (for driver side)*1 K113-20 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-10 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Multiplex tilt and telescopic ECU*2 K113-21 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-11 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Front power seat switch LH*1 K113-22 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K113-7 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 3 CAN junction connector K113-18 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-8 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Main body ECU (Multiplex network body ECU) K113-19 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-9 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Outer mirror control ECU assembly (for driver side)*1 K113-20 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-10 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Multiplex tilt and telescopic ECU*2 K113-21 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K113-11 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Front power seat switch LH*1 K113-22 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *1: w/ Seat position memory system *2: w/ Power tilt and power telescopic system HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 1 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 1 inspection. Result Result Proceed to OK A NG (Main body ECU (multiplex network body ECU) main line) B NG (ECU or sensor branch line) C NG (No. 3 CAN junction connector main line) D Result: 1 A REPLACE NO. 4 CAN JUNCTION CONNECTOR Result: 3 C See step 20 Result: 4 D See step 19 Result: 2 B See step 18
  18. CHECK FOR SHORT IN SUB BUS 1 LINE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Reconnect the K113 No. 4 CAN junction connector. Disconnect the K1 main body ECU (multiplex network body ECU). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Purpose K1-9 (CANP) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K1-10 (CANN) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K1-9 (CANP) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K1-10 (CANN) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *1 DLC3 *a Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 1 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 1 inspection. Result Result OK NG Result: 2 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 4 CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
  19. CHECK FOR SHORT IN SUB BUS 1 LINE (NO. 3 CAN JUNCTION CONNECTOR) Reconnect the K113 No. 4 CAN junction connector. Disconnect the K111 No. 3 CAN junction connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 - - *a Front view of wire harness connector (to No. 3 CAN Junction Connector) *b to No. 4 CAN Junction Connector *c to Outer Mirror Control ECU Assembly (for Front Passenger Side) (w/ Seat Position Memory System) *d to No. 1 CAN Junction Terminal Standard Resistance Tester Connection Condition Specified Condition Purpose Connected to K111-7 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 4 CAN junction connector K111-18 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-10 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short Outer mirror control ECU assembly (for front passenger side)* K111-21 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-11 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short No. 1 CAN junction terminal K111-22 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K111-7 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 4 CAN junction connector K111-18 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K111-10 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short Outer mirror control ECU assembly (for front passenger side)* K111-21 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short K111-11 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short No. 1 CAN junction terminal K111-22 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short *: w/ Seat position memory system HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 1 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 1 inspection. Result Result Proceed to OK A NG (No. 4 CAN junction connector main line) B NG (ECU or sensor branch line) C NG (No. 1 CAN junction terminal main line) D Result: 1 A REPLACE NO. 3 CAN JUNCTION CONNECTOR Result: 2 B REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) Result: 4 D See step 21 Result: 3 C See step 20
  20. CHECK FOR SHORT IN SUB BUS 1 LINE (ECU, SENSOR) Reconnect all wire harness connectors. Disconnect the connector that includes terminals CANH and CANL from the ECU (or sensor) to which the bus line shorted to +B or shorted to GND is connected. Refer to «TERMINALS OF ECU [04/2013 - ]»(ref-665785-S02934720632014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Purpose K1-9 (CANP) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K1-10 (CANN) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K1-9 (CANP) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K1-10 (CANN) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short *1 DLC3 *a Component with harness connector (Main Body ECU (Multiplex Network Body ECU)) HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 1 inspection. If the resistance becomes normal when the connector is disconnected from the ECU, there may be a short in the ECU. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 1 inspection. Result Result OK NG Result: 1 OK REPLACE CORRESPONDING ECU OR SENSOR Result: 2 NG REPAIR OR REPLACE CORRESPONDING ECU SENSOR BUS LINES OR CONNECTOR
  21. CHECK FOR SHORT IN SUB BUS 1 LINE (NO. 1 CAN JUNCTION TERMINAL) Reconnect the K111 No. 3 CAN junction connector. Disconnect the K106 No. 1 CAN junction terminal connector. Measure the resistance according to the value(s) in the table below. *1 DLC3 *a Front view of wire harness connector (to No. 1 CAN Junction Terminal) Standard Resistance Tester Connection Condition Specified Condition Purpose K106-3 (CANH) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANH ground short K106-2 (CANL) - K9-4 (CG) Cable disconnected from negative (-) battery terminal 200 ohms or higher Below 200 ohms: CANL ground short K106-3 (CANH) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANH +B short K106-2 (CANL) - K9-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kohms or higher Below 6 kohms: CANL +B short HINT: It is only necessary to perform the inspection in the above table for the result (short circuit) that was obtained in the Check Sub Bus 1 inspection. Find the necessary inspection from the Purpose column that matches the result in the Result column from the Check Sub Bus 1 inspection. Result Result OK NG Result: 1 OK REPLACE NO. 1 CAN JUNCTION TERMINAL Result: 2 NG REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION TERMINAL)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 52 seconds, and then drive the vehicle at a speed of 1 km/h (1 mph) or more for 1 second or more. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.

Scheme 225

Scheme 225: PROCEDURE
Scheme 225: PROCEDURE
  1. RECONFIRM DTC OUTPUT Reconfirm DTCs. Body Electrical > Gateway > Trouble Codes HINT: If DTC U1002 is output from Gateway of the network gateway ECU, this indicates a sub bus 2 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 2. Result Result Proceed to DTC U1002 is not output from network gateway ECU (Techstream display: Gateway) A DTC U1002 is output from network gateway ECU (Techstream display: Gateway) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [04/2013 - ]»(ref-665856-S14717889602014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 2 LINES (LANE DEPARTURE WARNING CAMERA BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the S9 lane departure warning camera connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Lane Departure Warning Camera) Standard Resistance Tester Connection Condition Specified Condition S9-6 (CA1P) - S9-12 (CA1N) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (LANE DEPARTURE WARNING CAMERA) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Lane Departure Warning Camera) Standard Resistance Tester Connection Condition Specified Condition S9-11 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Lane Departure Warning Camera) Standard Voltage Tester Connection Condition Specified Condition S9-7 (IGB) - Body ground Engine switch on (IG) 11 to 14 V Result Result OK NG Result: 2 OK REPLACE LANE DEPARTURE WARNING CAMERA. Refer to «REMOVAL [04/2013 - ]»(ref-665556-S11195377702014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 21 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.

Scheme 226

Scheme 226: PROCEDURE
Scheme 226: PROCEDURE
  1. RECONFIRM DTC OUTPUT Body Electrical > Gateway > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Gateway of the network gateway ECU, this indicates a sub bus 2 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 2. Result Result Proceed to DTC U1002 is not output from network gateway ECU (Techstream display: Gateway) A DTC U1002 is output from network gateway ECU (Techstream display: Gateway) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [04/2013 - ]»(ref-665856-S14717889602014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 2 LINES (BLIND SPOT MONITOR SENSOR LH BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the Q50 blind spot monitor sensor LH connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Blind Spot Monitor Sensor LH) Standard Resistance Tester Connection Condition Specified Condition Q50-2 (CA1P) - Q50-7 (CA1N) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (BLIND SPOT MONITOR SENSOR LH) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Blind Spot Monitor Sensor LH) Standard Resistance Tester Connection Condition Specified Condition Q50-10 (BLGD) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Blind Spot Monitor Sensor LH) Standard Voltage Tester Connection Condition Specified Condition Q50-5 (BLB) - Body ground Engine switch on (IG) 11 to 14 V Result Result OK NG Result: 2 OK REPLACE BLIND SPOT MONITOR SENSOR LH. Refer to «REMOVAL [04/2013 - ]»(ref-665847-S15067039252014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 20 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.

Scheme 227

Scheme 227: PROCEDURE
Scheme 227: PROCEDURE
  1. RECONFIRM DTC OUTPUT Body Electrical > Main Body > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Main Body of the main body ECU, this indicates a sub bus 1 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 1. Result Result Proceed to DTC U1002 is not output from main body ECU (Techstream display: Main Body) A DTC U1002 is output from main body ECU (Techstream display: Main Body) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Main Body ECU) [04/2013 - ]»(ref-665856-S20746887902014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 1 LINES (FRONT POWER SEAT SWITCH LH BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the b12 front power seat switch LH connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Front Power Seat Switch LH) Standard Resistance Tester Connection Condition Specified Condition b12-8 (CANP) - b12-7 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (FRONT POWER SEAT SWITCH LH) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Disconnect the b11 front power seat switch LH connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Front Power Seat Switch LH) Standard Resistance Tester Connection Condition Specified Condition b11-2 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Front Power Seat Switch LH) Standard Voltage Tester Connection Condition Specified Condition b11-7 (+B) - Body ground Always 11 to 14 V b12-3 (IG) - Body ground Engine switch on (IG) 11 to 14 V b12-12 (SYSB) - Body ground Always 11 to 14 V Result Result OK NG Result: 2 OK REPLACE FRONT POWER SEAT SWITCH LH. Refer to «REMOVAL [04/2013 - ]»(ref-665830-S07592971972014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 20 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.
  1. RECONFIRM DTC OUTPUT Body Electrical > Main Body > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Main Body of the main body ECU, this indicates a sub bus 1 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 1. Result Result Proceed to DTC U1002 is not output from main body ECU (Techstream display: Main Body) A DTC U1002 is output from main body ECU (Techstream display: Main Body) B Result: 2 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Main Body ECU) [04/2013 - ]»(ref-665856-S20746887902014102400000) Result: 1 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 1 LINES (OUTER MIRROR CONTROL ECU ASSEMBLY (FOR DRIVER SIDE)) Disconnect the cable from the negative (-) battery terminal. Disconnect the N24 outer mirror control ECU assembly (for driver side) connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Outer Mirror Control ECU Assembly (for Driver Side)) Standard Resistance Tester Connection Condition Specified Condition N24-9 (CANP) - N24-8 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 2 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY (FOR DRIVER SIDE)) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Outer Mirror Control ECU Assembly (for Driver Side)) Standard Resistance Tester Connection Condition Specified Condition N24-7 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Outer Mirror Control ECU Assembly (for Driver Side)) Standard Voltage Tester Connection Condition Specified Condition N24-5 (SIG) - Body ground Engine switch on (IG) 11 to 14 V N24-6 (CPUB) - Body ground Always 11 to 14 V N24-14 (BDR) - Body ground Always 11 to 14 V Result Result OK NG Result: 2 OK REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (FOR DRIVER SIDE). Refer to «REMOVAL [04/2013 - ]»(ref-665850-S29959522862014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 20 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.

Scheme 228

Scheme 228: PROCEDURE
Scheme 228: PROCEDURE
  1. RECONFIRM DTC OUTPUT Body Electrical > Main Body > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Main Body of the main body ECU, this indicates a sub bus 1 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 1. Result Result Proceed to DTC U1002 is not output from main body ECU (Techstream display: Main Body) A DTC U1002 is output from main body ECU (Techstream display: Main Body) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Main Body ECU) [04/2013 - ]»(ref-665856-S20746887902014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS 1 LINES (OUTER MIRROR CONTROL ECU ASSEMBLY (FOR FRONT PASSENGER SIDE)) Disconnect the cable from the negative (-) battery terminal. Disconnect the N9 outer mirror control ECU assembly (for front passenger side) connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Outer Mirror Control ECU Assembly (for Front Passenger Side)) Standard Resistance Tester Connection Condition Specified Condition N9-9 (CANP) - N9-8 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY (FOR FRONT PASSENGER SIDE)) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Outer Mirror Control ECU Assembly (for Front Passenger Side)) Standard Resistance Tester Connection Condition Specified Condition N9-7 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Outer Mirror Control ECU Assembly (for Front Passenger Side)) Standard Voltage Tester Connection Condition Specified Condition N9-5 (SIG) - Body ground Engine switch on (IG) 11 to 14 V N9-6 (CPUB) - Body ground Always 11 to 14 V N9-14 (BDR) - Body ground Always 11 to 14 V Result Result OK NG Result: 2 OK REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (FOR FRONT PASSENGER SIDE). Refer to «REMOVAL [04/2013 - ]»(ref-665850-S29959522862014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 21 seconds, and then drive the vehicle at a speed of 30 km/h (19 mph) or more for 4 seconds or more. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.

Scheme 229

Scheme 229: PROCEDURE
Scheme 229: PROCEDURE
  1. RECONFIRM DTC OUTPUT Body Electrical > Gateway > Trouble Codes Reconfirm DTCs. HINT: If DTC U1002 is output from Gateway of the network gateway ECU, this indicates a sub bus 2 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 2. Result Result Proceed to DTC U1002 is not output from network gateway ECU (Techstream display: Gateway) A DTC U1002 is output from network gateway ECU (Techstream display: Gateway) B Result: 1 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [04/2013 - ]»(ref-665856-S14717889602014102400000) Result: 3 A See step 2
  2. CHECK FOR OPEN IN SUB BUS LINES (ABSORBER CONTROL ECU BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the K39 absorber control ECU connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Absorber Control ECU) *b to No. 3 CAN Junction Connector *c to No. 5 CAN Junction Connector Standard Resistance SUB BUS 2 BRANCH LINE Tester Connection Condition Specified Condition Connected to K39-7 (CANH) -K39-8 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 ohms No. 3 CAN junction connector V3 BUS BRANCH LINE* Tester Connection Condition Specified Condition Connected to K39-20 (CA2H) - K39-21 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 ohms No. 5 CAN junction connector *: w/ VGRS system Result Result OK NG Result: 1 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (ABSORBER CONTROL ECU) Result: 3 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Absorber Control ECU) Standard Resistance Tester Connection Condition Specified Condition K39-5 (GND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K39-3 (B) - Body ground Engine switch on (IG) 11 to 14 V *a Front view of wire harness connector (to Absorber Control ECU) Result Result OK NG Result: 2 OK REPLACE ABSORBER CONTROL ECU. Refer to «REMOVAL [04/2013 - ]»(ref-665819-S33981721892014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

Note. Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [04/2013 - ] Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ] After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again. DTC check procedure: Turn the engine switch on (IG) and wait at least 60 seconds. After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed. Refer to DIAGNOSIS SYSTEM [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

HINT

  1. Operating the engine 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.
  2. 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.
  1. RECONFIRM DTC OUTPUT Reconfirm DTCs. HINT: If other ECUs connected to V3 bus output DTCs, check the blanch circuit of V3 bus. Result Result Proceed to Other ECUs connected to V3 bus do not output DTCs. A Other ECUs connected to V3 bus output DTCs. B Result: 2 B GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC. Refer to «DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with VGRS; DTC U0131: Lost Communication with Power Steering Control Module [04/2013 - ]»(ref-665855-S23475927472014102400000) Result: 1 A See step 2
  2. CHECK FOR OPEN IN V3 BUS LINES (FRONT STEERING CONTROL EUC BRANCH LINE) Disconnect the cable from the negative (-) battery terminal. Disconnect the K17 front steering control ECU connector. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Front Steering Control ECU) Standard Resistance Tester Connection Condition Specified Condition K17-2 (CNH2) - K17-8 (CNL2) Cable disconnected from negative (-) battery terminal 54 to 69 ohms Result Result OK NG Result: 2 NG REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (FRONT STEERING CONTROL EUC) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Disconnect the A60 front steering control ECU. Measure the resistance according to the value(s) in the table below. *a Front view of wire harness connector (to Front Steering Control ECU) Standard Resistance Tester Connection Condition Specified Condition A60-1 (PGND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms K17-13 (PGD2) - Body ground Cable disconnected from negative (-) battery terminal Below 1 ohms Reconnect the cable to the negative (-) battery terminal. Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Front Steering Control ECU) Standard Voltage Tester Connection Condition Specified Condition A60-2 (PIG) - Body ground Always 11 to 14 V K17-4 (IG) - Body ground Engine switch on (IG) 11 to 14 V K17-7 (+BI) - Body ground Always 11 to 14 V Result Result OK NG Result: 2 OK REPLACE FRONT STEERING CONTROL EUC. Refer to «REMOVAL [04/2013 - ]»(ref-665820-S08198949432014102400000) Result: 1 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

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