Tech Tips
Use these procedures to troubleshoot the LIN communication system.
*: Use the intelligent tester.
VEHICLE BROUGHT TO WORKSHOP
NEXT |
INSPECT BATTERY VOLTAGE
Standard voltage |
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11 to 14 V |
If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT |
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
Using the intelligent tester, inspect the CAN communication function to make sure that there are no malfunctions in the communication system Click here.
Result | Proceed to |
---|---|
No DTCs are output | A |
DTCs are output (for LHD with Entry and Start system) | B |
DTCs are output (for LHD without Entry and Start system) | C |
DTCs are output (for RHD with Entry and Start system) | D |
DTCs are output (for RHD without Entry and Start system) | E |
B |
Go to CAN COMMUNICATION SYSTEM Click here |
C |
Go to CAN COMMUNICATION SYSTEM Click here |
D |
Go to CAN COMMUNICATION SYSTEM Click here |
E |
Go to CAN COMMUNICATION SYSTEM Click here |
A |
INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
Using the intelligent tester, inspect the LIN communication function to make sure that there are no malfunctions in the communication system.
Result | Proceed to |
---|---|
No DTCs are output | A |
DTCs are output | B |
B |
Go to DIAGNOSTIC TROUBLE CODE CHART Click here |
A |
PROBLEM SYMPTOMS TABLE
Refer to the Problem Symptoms Table Click here.
Result | Proceed to |
---|---|
Fault is not listed in problem symptoms table | A |
Fault is listed in problem symptoms table | B |
B |
Go to step 7 |
A |
OVERALL ANALYSIS AND TROUBLESHOOTING*
Data List/Active Test Click here
Terminals of ECU Click here
NEXT |
ADJUST, REPAIR OR REPLACE
NEXT |
END |