Can Bus Diagnostics Table
This diagnosis applies only to the CAN bus lines. If a different system is defective, proceed to the applicable diagnosis section for each system. Observe the diagnosis procedure below only when the CAN bus line is defective.
CAUTION:
During diagnosis, a DTC code associated with another system may be set when the ignition switch is turned on with connector(s) disconnected. After completing the repair, confirm all systems for DTC code(s). If DTC code(s) are set, erase them all.
CAN BUS DIAGNOSTICS TABLE
| M.U.T.-III SCREEN (THE ECUS THAT ARE NOT ADOPTED ARE NOT DISPLAYED.) | COMMENT | DIAGNOSIS DETAIL | REFERENCE |
|---|---|---|---|
| Short circuit to battery in red displayed area is estimated. | Diagnostic Item 1 Diagnose shorts in the power supply to CAN bus line | DIAGNOSTIC ITEM 1: DIAGNOSE SHORTS IN THE POWER SUPPLY TO CAN BUS LINE | |
| Grounding in red displayed area is estimated. | Diagnostic Item 2 Diagnose shorts in the ground to CAN bus line | DIAGNOSTIC ITEM 2: DIAGNOSE SHORTS IN THE GROUND TO CAN BUS LINE | |
| Short circuit between CAN_H and CAN_L in red displayed area is estimated. | Diagnostic Item 3 Diagnose shorts between CAN_H and L lines | DIAGNOSTIC ITEM 3: DIAGNOSE SHORTS BETWEEN CAN_H AND L LINES | |
| Disconnection in red displayed area is estimated. | |||
| Disconnection or terminating resistance in red displayed area is estimated. | Diagnostic Item 4 Diagnose the terminator resistors | DIAGNOSTIC ITEM 4: DIAGNOSE THE TERMINATOR RESISTORS | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 5 Diagnose when the scan tool cannot receive the data sent by combination meter. | DIAGNOSTIC ITEM 5: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY COMBINATION METER | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 6 Diagnose when the scan tool cannot receive the data sent by ETACS-ECU. | DIAGNOSTIC ITEM 6: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY ETACS-ECU | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 7 Diagnose when the scan tool cannot receive the data sent by A/C-ECU. | DIAGNOSTIC ITEM 7: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY A/C-ECU | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 8 Diagnose when the scan tool cannot receive the data sent by SRS-ECU. | DIAGNOSTIC ITEM 8: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY SRS-ECU | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 9 Diagnose when the scan tool cannot receive the data sent by the TPMS receiver. | DIAGNOSTIC ITEM 9: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY TPMS RECEIVER | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 10 Diagnose when the scan tool cannot receive the data sent by the ECM < M/T> or the PCM < A/T>. | DIAGNOSTIC ITEM 10: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY THE ECM < M/T> OR THE PCM < A/T> | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 11 Diagnose when the scan tool cannot receive the data sent by ABS-ECU < vehicles without traction control system> or ABS/TCL-ECU < vehicles with traction control system>. | DIAGNOSTIC ITEM 11: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY ABS-ECU < VEHICLES WITHOUT TRACTION CONTROL SYSTEM> OR ABS/TCL-ECU < VEHICLES WITH TRACTION CONTROL SYSTEM> | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 12 Diagnose when the scan tool cannot receive the data sent by convertible top control module. | DIAGNOSTIC ITEM 12: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY CONVERTIBLE TOP CONTROL MODULE. < ECLIPSE SPYDER> | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 13 Diagnose when the scan tool cannot receive the data sent by the ECM < M/T> or the PCM < A/T> and ABS-ECU < vehicles without traction control system> or ABS/TCL-ECU < vehicles with traction control system>. | DIAGNOSTIC ITEM 13: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY THE ECM < M/T> OR THE PCM < A/T> AND ABS-ECU < VEHICLES WITHOUT TRACTION CONTROL SYSTEM> OR ABS/TCL-ECU < VEHICLES WITH TRACTION CONTROL SYSTEM> | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 14 Diagnose when the scan tool cannot receive the data sent by the ECM < M/T> or the PCM < A/T> and convertible top control module. | DIAGNOSTIC ITEM 14: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY THE ECM < M/T> OR THE PCM < A/T> AND CONVERTIBLE TOP CONTROL MODULE.< ECLIPSE SPYDER> | |
| Harness disconnection or loose connection in red displayed area is estimated. | Diagnostic Item 15 Diagnose when the scan tool cannot receive the data sent by the ECM < M/T> or the PCM < A/T>, and ABS-ECU < vehicles without traction control system> or ABS/TCL-ECU < vehicles with traction control system>, and convertible top control module. | DIAGNOSTIC ITEM 15: DIAGNOSE WHEN THE SCAN TOOL CANNOT RECEIVE THE DATA SENT BY THE ECM < M/T> OR THE PCM < A/T>, AND ABS-ECU < VEHICLES WITHOUT TRACTION CONTROL SYSTEM> OR ABS/TCL-ECU < VEHICLES WITH TRACTION CONTROL SYSTEM>, AND CONVERTIBLE TOP CONTROL MODULE. < ECLIPSE SPYDER> | |
| Malfunction in red displayed area is estimated. Please refer to service information and inspect with CAN Detail Diagnosis. | Diagnostic Item 16 Diagnose CAN bus lines thoroughly | DIAGNOSTIC ITEM 16: DIAGNOSE CAN BUS LINES THOROUGHLY |
NOTE:
If the screen other than above is displayed, troubles are present at two or more spots. In this case, diagnose CAN bus lines by referring to the trouble spot pinpoint procedures.
NOTE:
If a trouble cannot be solved after performing the diagnosis other than item 4, diagnose CAN bus line thoroughly.