Park assist / monitoring

How to proceed with troubleshooting

~1min read

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS

3 CHECK AND CLEAR DTCs

  1. Refer to the diagnostic check/clear

4 PROBLEM SYMPTOM CONFIRMATION

5 SYMPTOM SIMULATION

6 CHECK DTC

7 CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM

  1. Refer to the navigation system

8 PROBLEM SYMPTOMS TABLE

  1. Refer to the problem symptoms table

9 BASED ON THE MALFUNCTION SYMPTOM, PERFORM TROUBLESHOOTING BELOW

  1. Terminals of ECU

10 ADJUST, REPAIR OR REPLACE

11 CONFIRMATION TEST

END

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.