PRE-COLLISION SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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INSPECT BATTERY VOLTAGE

1. Measure the 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.

   
   

   NG

   CHARGE OR REPLACE BATTERY

   OK

INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY (BEAM AXIS MISALIGNMENT READING)*

1. Adjust the reflector height Click here.

2. Place the reflector Click here.

3. Connect the Techstream to the DLC3.

4. Turn the engine switch on (IG).

5. Turn the Techstream on.

6. Operate the pre-collision system cancel switch assembly to turn the pre-collision system on.

7. Enter the following menus: Powertrain / Radar Cruise / Utility / Beam Axis Misalignment Reading.

8. Check the amount of misalignment and make a note.

   
   

   NEXT

CHECK CAN COMMUNICATION SYSTEM*

1. Use the Techstream to check if the CAN communication system is functioning normally.

   Result
   Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output B

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM Click here

   A

CHECK FOR DTC (PRE-COLLISION 2)*

1. Check for DTCs and note any codes that are output Click here.

2. Clear the DTCs.

3. Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs Click here.

   Result
   DTC Condition Proceed to DTCs are not output A DTCs are output B DTCs are not output, and malfunction cannot be duplicated or checked C

   
   

   B

   GO TO DTC CHART Click here

   C

   GO TO SYMPTOM SIMULATION Click here

   A

PROBLEM SYMPTOMS TABLE

B

GO TO PROBLEM SYMPTOMS TABLE Click here

A

OVERALL ANALYSIS AND TROUBLESHOOTING*

1. Terminals of ECU Click here

2. Data List / Active Test Click here

   
   

   NEXT

ADJUST, REPAIR OR REPLACE

NEXT

CONFIRMATION TEST

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