LIN Communication System

MULTIPLEX COMMUNICATION: 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

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

NEXT -- Continue to next step.

3. CHECK FOR DTC (ELECTRICAL POWER CONTROL SYSTEM)*

(a) Using the Techstream, check if the electric power control system is functioning normally.

Result





B -- GO TO ELECTRIC POWER CONTROL SYSTEM Electric Power Control System
A -- Continue to next step.

4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system CAN Communication System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system.

Result





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

6. PROBLEM SYMPTOMS TABLE

Result





B -- Go to step 8
A -- Continue to next step.

7. 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.

8. ADJUST, REPAIR OR REPLACE

NEXT -- END