LIN Communication System

NETWORKING: LIN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the LIN communication system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

HINT
If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check the CAN communication system to ensure that there are no malfunctions in the communication system Diagnosis System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, check the LIN communication function to ensure that there are no malfunctions in the communication system Reading and Clearing Diagnostic Trouble Codes.

HINT
Refer to the Diagnostic Trouble Code Chart for a list of DTCs LIN Communication System.

Result





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART LIN Communication System
A -- Continue to next step.

5. CHECK FOR DTCS*

(a) Check for DTCs and write down any DTCs that are output Reading and Clearing Diagnostic Trouble Codes.

(b) Clear DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Reproduce the DTC detection conditions and confirm that the DTC(s) are output again.

Result





B -- GO TO SYMPTOM SIMULATION Electronic Circuit Inspection Procedure

C -- GO TO DIAGNOSTIC TROUBLE CODE CHART LIN Communication System
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List/Active Test Scan Tool Testing and Procedures.

(b) Terminals of ECU LIN Communication System.

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- END