Can Bus Diagnostics Table

CAUTION: A diagnostic trouble code may not also be stored in the CAN-B lines under the conditions below. If no diagnostic trouble code has been stored due to electrical noise, confirm diagnosis item 23 DIAGNOSTIC ITEM 23: SHORT TO POWER SUPPLY OR GROUND, OPEN CIRCUIT OR LINE-TO-LINE SHORT IN THE CAN-B BUS LINES . .

Open circuit at the CAN_H side of the CAN-B bus lines
Open circuit at the CAN_L side of the CAN-B bus line
Short to ground at the CAN_H side of the CAN-B bus line

CAUTION: During diagnosis, a diagnostic trouble code associated with another system may be stored when the ignition switch is turned on with connector(s) disconnected. After completing the repair, confirm all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are stored, erase them all.

This diagnosis applies only to the CAN bus lines. If a different system is defective, proceed to the applicable diagnosis information for each system. Observe the diagnosis procedure below only when the CAN bus line is defective.

Comment	Diagnosis detail	Reference
Short circuit to battery in red displayed area is estimated.	Diagnosis Item 1 Diagnose when the scan tool cannot receive the data sent by ETACS-ECU.	DIAGNOSTIC ITEM 1: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY ETACS-ECU .
Grounding in red displayed area is estimated.	Diagnosis Item 2 Malfunction of the ETACS-ECU.	DIAGNOSTIC ITEM 2: MALFUNCTION OF THE ETACS-ECU .
CAN-C: A bus-off failure is present in the gateway ECU.	Diagnosis Item 3 Abnormal short between the CAN-C bus lines.	DIAGNOSTIC ITEM 3: ABNORMAL SHORT BETWEEN THE CAN-C BUS LINES .
CAN-C: Grounding in red displayed area is estimated	Diagnosis Item 4 Diagnose shorts in the ground to CAN-C bus line.	DIAGNOSTIC ITEM 4: DIAGNOSE SHORTS IN THE GROUND TO CAN-C BUS LINE .
CAN-C: Short circuit to battery in red displayed area is estimated	Diagnosis Item 5 Diagnose shorts in the power supply to CAN-C bus line.	DIAGNOSTIC ITEM 5: DIAGNOSE SHORTS IN THE POWER SUPPLY TO CAN-C BUS LINE .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 6 Diagnose when the scan tool cannot receive the data sent by AWC-ECU.	DIAGNOSTIC ITEM 6: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY AWC-ECU .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 7 Diagnose when the scan tool cannot receive the data sent by steering wheel sensor.	DIAGNOSTIC ITEM 7: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY STEERING WHEEL SENSOR .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 8 Diagnose when the scan tool cannot receive the data sent by shift lever. < TC-SST >	DIAGNOSTIC ITEM 8: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY SHIFT LEVER. < TC-SST >
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 9 Diagnose when the scan tool cannot receive the data sent by ASC-ECU.	DIAGNOSTIC ITEM 9: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY ASC-ECU .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 10 Diagnose when the scan tool cannot receive the data sent by ECM.	DIAGNOSTIC ITEM 10: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY ECM .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 11 Diagnose when the scan tool cannot receive the data sent by TC-SST-ECU. < TC-SST >	DIAGNOSTIC ITEM 11: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY TC-SST-ECU. < TC-SST >
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 12 Diagnose the lines between the ETACS-ECU and joint connector (CAN 2).	DIAGNOSTIC ITEM 12: DIAGNOSE THE LINES BETWEEN THE ETACS-ECU AND JOINT CONNECTOR (CAN 2) .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 13 Diagnose the lines between joint connector (CAN 2) and joint connector (CAN 3)	DIAGNOSTIC ITEM 13: DIAGNOSE THE LINES BETWEEN JOINT CONNECTOR (CAN 2) AND JOINT CONNECTOR (CAN 3) .
CAN-C: Disconnection in red displayed area is estimated.	Diagnosis Item 14 Diagnose the lines between joint connector (CAN 3) and joint connector (CAN 4). < TC-SST >	DIAGNOSTIC ITEM 14: DIAGNOSE THE LINES BETWEEN JOINT CONNECTOR (CAN 3) AND JOINT CONNECTOR (CAN 4) < TC-SST >
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 15 Diagnose when the scan tool cannot receive the data sent by KOS-ECU.	DIAGNOSTIC ITEM 15: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY KOS-ECU .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 16 Diagnose when the scan tool cannot receive the data sent by WCM.	DIAGNOSTIC ITEM 16: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY WCM .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 17 Diagnose when the scan tool cannot receive the data sent by SRS-ECU.	DIAGNOSTIC ITEM 17: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY SRS-ECU .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 18 Diagnose when the scan tool cannot receive the data sent by occupant classification-ECU.	DIAGNOSTIC ITEM 18: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY OCCUPANT CLASSIFICATION-ECU .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 19 Diagnose when the scan tool cannot receive the data sent by A/C control panel.	DIAGNOSTIC ITEM 19: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY A/C CONTROL PANEL .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 20 Diagnose when the scan tool cannot receive the data sent by combination meter.	DIAGNOSTIC ITEM 20: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY COMBINATION METER .
CAN-B: A failure in the red section, or a bus-off failure is present in the gateway ECU.	Diagnosis Item 21 Short to power supply or ground in both CAN_H and CAN_L lines of the CAN-B bus lines.	DIAGNOSTIC ITEM 21: SHORT TO POWER SUPPLY OR GROUND IN BOTH CAN_H AND CAN_L LINES OF THE CAN-B BUS LINES .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 22 Diagnose the ETACS-ECU, joint connector (CAN 1) or lines between ETACS-ECU and joint connector (CAN 1).	DIAGNOSTIC ITEM 22: DIAGNOSE THE ETACS-ECU, JOINT CONNECTOR (CAN 1) OR LINES BETWEEN ETACS-ECU AND JOINT CONNECTOR (CAN 1) .
CAN-B: Disconnection in red displayed area is estimated.	Diagnosis Item 23 Short to power supply or ground, open circuit or line-to-line short in the CAN-B bus lines.	DIAGNOSTIC ITEM 23: SHORT TO POWER SUPPLY OR GROUND, OPEN CIRCUIT OR LINE-TO-LINE SHORT IN THE CAN-B BUS LINES .