How To Proceed With Troubleshooting

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedure to troubleshoot the smart access system with push-button start.
* *: Using the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS

HINT
* In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
* Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
* The following 5 items are important points in the problem analysis:






NEXT -- Continue to next step.

3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

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

NEXT -- Continue to next step.

4. INSPECT COMMUNICATION FUNCTION OF BEAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the BEAN Communication System is functioning normally Multiplex Communication System.

Result:





B -- GO TO BEAN COMMUNICATION SYSTEM Multiplex Communication System
A -- Continue to next step.

5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

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

Result:





B -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

6. CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output.

(b) Recheck for DTCs. Based on the DTCs output, try to cause the same steering lock system DTC, engine immobilizer system DTC, wireless door lock control system DTC or smart access system with push-button start (for start function) DTC to be output by simulating the symptoms indicated by the DTCs.

Result:





B -- GO TO STEERING LOCK SYSTEM Steering Lock System

C -- GO TO ENGINE IMMOBILIZER SYSTEM Engine Immobilizer System

D -- GO TO WIRELESS DOOR LOCK CONTROL SYSTEM B1242

E -- GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) Smart Access System With Push-Button Start (for Start Function)
A -- Continue to next step.

7. CHECK ELECTRICAL KEY TRANSMITTER

(a) Confirm that the entry function operates normally for all registered keys Operation Check.

HINT
For vehicles with a key (for card type), confirm operation of both the key (for card type) and keys (for standard).

NEXT -- Continue to next step.

8. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Problem Symptoms Table.

Result:





B -- Go to step 10
A -- Continue to next step.

9. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check Operation Check

(b) Data List / Active Teat Smart Access System With Push-Button Start (for Entry Function)

(c) Terminals of ECU Smart Access System With Push-Button Start (for Entry Function)

NEXT -- Continue to next step.

10. REPAIR OR REPLACE

NEXT -- Continue to next step.

11. CONFIRMATION TEST

NEXT -- END