How To Proceed With Troubleshooting

1UR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the push-button start function.
* *: Use 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. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

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





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

4. CHECK FOR DTC*

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

(b) Delete DTC.

(c) Recheck DTC.





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Pinout Values and Diagnostic Parameters

(b) Data List/Active Test Scan Tool Testing and Procedures

NEXT -- Continue to next step.

7. REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END