How To Proceed With Troubleshooting

HINT:

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

1. VEHICLE BROUGHT TO WORKSHOP

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1. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

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1. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the CAN communication function to make sure that there are no malfunctions in the communication system (See page ).

B

GO TO CAN COMMUNICATION SYSTEM

A

1. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the LIN communication function to make sure that there are no malfunctions in the communication system (See page ).

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

1. PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table (See page ).

B

GO TO STEP 7

A

1. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List/Active Test (See page ).

(b) Terminals of ECU (See page
).

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1. ADJUST, REPAIR OR REPLACE

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END