How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the smart key 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. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

B

GO TO CAN COMMUNICATION SYSTEM

A

1. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the LIN communication system is functioning normally.

B

GO TO LIN COMMUNICATION SYSTEM

A

1. CHECK FOR DTC*

(a) Check for DTCs. Based on the DTCs output, try to cause the same steering lock system DTC, engine immobiliser system DTC or smart key system (for Entry Function) DTC to be stored by reproducing the symptoms indicated by the DTC.

B

GO TO STEERING LOCK SYSTEM

C

GO TO ENGINE IMMOBILISER SYSTEM

D

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

1. PROBLEM SYMPTOMS TABLE

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

B

GO TO STEP 8

A

1. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check (See page ).

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

(c) Terminals of ECU (See page ).

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1. REPAIR OR REPLACEMENT

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1. CONFIRMATION TEST

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END