How To Proceed With Troubleshooting

PRE-COLLISION: PRE-COLLISION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedures to troubleshoot the pre-collision 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, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CHECK CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

Result





B -- Go to CAN COMMUNICATION SYSTEM Diagnosis System
A -- Continue to next step.

4. CHECK FOR DTC*

(a) Check for DTCs Pre-Collision System.

(b) Clear the DTCs Pre-Collision System.

(c) Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the pre-collision system DTCs by simulating the conditions indicated by the DTCs.

Result





B -- Go to DIAGNOSTIC TROUBLE CODE CHART Pre-Collision System
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Pre-Collision System.

Result





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

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Pre-Collision System

(b) Data List / Active Test Pre-Collision System

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NOTICE:
* When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed Adjustments.
* w/ Lane Departure Alert System:
When the lane recognition camera sensor assembly is replaced with a new one, adjustment of the camera sensor beam axis must be performed Adjustments.

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END