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.
* Techstream should be used in steps 2, 3 and 5.
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 to the next step.

NG -- CHARGE OR REPLACE BATTERY
OK -- Continue to next step.

3. CHECK CAN COMMUNICATION SYSTEM

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

(1) Perform bus check (Communication malfunctioning DTC).

(2) Perform bus check (Communication Bus check).

Result:





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

4. CHECK FOR DTC

(a) Check for DTCs.

(1) Record the DTCs.

(b) Clear the DTCs.

(c) Recheck for DTCs.

(1) Attempt to duplicate the malfunction and check if the DTCs are output again Pre-Collision System.

Result:





B -- GO TO DTC CHART

C -- SYMPTOM SIMULATION
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) If the result is not listed on the problem symptoms table, proceed to A.

(b) If the result is listed on the problem symptoms table, proceed to B.

B -- GO TO STEP 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) DATA LIST/ACTIVE TEST Pre-Collision System.

(b) Terminals of ECU Pre-Collision System.

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END