How To Proceed With Troubleshooting

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the dynamic radar cruise control system.
* *: Use the 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, replace or recharge the battery before proceeding to the next step.

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

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

Result:





B -- GO TO MULTIPLEX COMMUNICATION SYSTEM How To Proceed With Troubleshooting
A -- Continue to next step.

4. CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)*

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

Result:





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

5. CHECK FOR DTC*

Refer to DTC Check / Clear Dynamic Radar Cruise Control System.

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

(b) Clear the DTCs.

(c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions that the DTCs suggest.

Result:





B -- Go to step 8
A -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE

Refer to Problem Symptoms Table Dynamic Radar Cruise Control System.

Result:





B -- Go to step 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Dynamic Radar Cruise Control System

(b) Data List / Active Test Dynamic Radar Cruise Control System

NEXT -- Continue to next step.

8. ADJUST, REPAIR OR REPLACE

NOTICE:
* When the distance control ECU is replaced with a new one, initialization must be performed Installation.
* When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the millimeter wave radar sensor assembly beam axis must be performed Adjustments.

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END