Adaptive Cruise Control System Check

Precautions: Precautions for Diagnosing Trouble · Precautions for Adaptive Cruise Control System · Precautions for Replacing RBS Control Module · General safety (00)

Step	Action	Yes	No
1	Customer complaint analysis 1)Perform customer complaint analysis. Was customer complaint analysis performed?	Go to Step 2.	Perform customer complaint analysis.
2	DTC check, record and clearance 1)Check for DTC (current and history). Is there any DTC(s)?	Print DTC or write it down and clear it referring to DTC Clearance:Adaptive Cruise Control. Then go to Step 3.	Go to Step 4.
3	Visual inspection 1)Perform visual inspection. Is there any faulty condition?	Repair or replace defective part, and then go to Step 11.	Go to Step 5.
4	Visual inspection 1)Perform visual inspection. Is there any faulty condition?	Repair or replace defective part, and then go to Step 11.	Go to Step 8.
5	Trouble symptom confirmation 1)Check trouble symptom. Is trouble symptom identified?	Go to Step 6.	Go to Step 7.
6	Rechecking and recording DTC 1)Recheck for current DTC. Is there any DTC(s)?	Go to Step 9.	Go to Step 8.
7	Rechecking and recording DTC 1)Recheck for current DTC. Is there any DTC(s)?	Go to Step 9.	Go to Step 10.
8	Adaptive cruise control system symptom diagnosis 1)Perform adaptive cruise control system symptom diagnosis. Is there any faulty condition?	Repair or replace defective part(s), and then go to Step 11.	Go to Step 10.
9	Troubleshooting for DTC 1)Perform troubleshooting for applicable DTC. Are check and repair completed?	Go to Step 11.	Check and repair defective part(s), and then go to Step 11.
10	Intermittent problem check 1)Check for intermittent problems. Is there any faulty condition?	Repair or replace defective part(s), and then go to Step 11.	Go to Step 11.
11	Final confirmation test 1)Perform final confirmation test. Is there any problem symptom, DTC or abnormal condition?	Go to Step 6.	End.

Step 1. Customer Complaint Analysis

Record details of the problem (failure, complaint) and how it occurred as described by the customer.

For this purpose, such a questionnaire form shown below will facilitate collecting information for proper analysis and diagnosis.

NOTE:

The form is a standard sample. It should be modified according to characteristics of each market.

Customer questionnaire form (Example)

Step 2. DTC Check, Record and Clearance

First, check for DTC (current and history).

If DTCs are indicated, print the DTCs or write them down and then clear them.

DTC checklist (Example)

Steps 3 and 4. Visual Inspection

As a preliminary step, perform visual check of the items that support proper function of the adaptive cruise control system for their installation or connector connection.

Step 5. Trouble Symptom Confirmation

Based on information obtained in Step 1. Customer Complaint Analysis and Step 2. DTC Check, Record and Clearance, check trouble symptoms.

Steps 6 and 7. Rechecking and Recording DTC

Refer to DTC Check:Adaptive Cruise Control for checking procedure.

Step 8. Adaptive Cruise Control System Symptom Diagnosis

Perform Adaptive Cruise Control System Symptom Diagnosis:Adaptive Cruise Control based on symptom found in the vehicle, checking the following items.

•Customer complaint analysis
•Trouble symptom confirmation

Step 9. Troubleshooting for DTC

Perform troubleshooting for applicable DTC and repair or replace faulty parts.

Step 10. Intermittent Problem Check

If there is no DTC in Step 2:

Check for intermittent problem.

If there is any DTC in Step 2:

Check parts related to detected DTC (e.g. wire harness, connector, etc.).

Step 11. Final Confirmation Test

Check that the problem symptom does not recur and the vehicle is free from any abnormal conditions. If what has been repaired is related to DTC, clear DTC once, perform DTC confirmation procedure and check that no DTC is indicated.