Use these procedures to troubleshoot the pre-collision system.
*: Use the GTS.
| Proceed to |
|---|
| NEXT |
NEXT
Measure the auxiliary battery voltage with the ignition switch off.
11 to 14 V
If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.
Check the fuses and relays.
Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
| Proceed to |
|---|
| NEXT |
NEXT
Check if a pre-collision system warning message is displayed on the multi-information display in the combination meter assembly.
If more than one warning message is displayed, check in the order of A, B, C and D.
| Result | Proceed to |
|---|---|
| "Pre-Collision System Malfunction Visit Your Dealer" is displayed | A |
| "Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" is displayed | B |
| Any of the following messages is displayed:
·
"Pre-Collision System Unavailable See Owner's Manual" ·
"Pre-Collision System Out of Temperature Range Unavailable See Owner's Manual" ·
"Pre-Collision System Radar In Self Calibration Unavailable See Owner's Manual" ·
"Front Camera Out of Temperature Range Unavailable Wait until Normal Temperature" ·
"Front Camera Low Visibility Unavailable See Owner's Manual" ·
"Front Camera Unavailable See Owner's Manual" |
C |
| Pre-collision system warning message is not displayed | D |
A
B
C
D
Using the GTS, check for CAN communication system DTCs.
for GTMC Made HV Model:
for SFTM Made HV Model:
for GTMC Made Gasoline Model:
for SFTM Made Gasoline Model:
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
A
B
for GTMC Made HV Model:
for SFTM Made HV Model:
for GTMC Made Gasoline Model:
for SFTM Made Gasoline Model:
Check for DTCs.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC C142571 is output | B |
| A DTC other than C142571 is output | C |
A
B
C
Check for vehicle control history (RoB) and note any codes that are output.
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Record the vehicle control history (RoB).
| Result | Proceed to |
|---|---|
| Vehicle control history (RoB) is not output | A |
| X2013, X2015, X2022, X2024, X2025, X2026 or X2028 is output | B |
| Vehicle control history (RoB) other than X2013, X2015, X2022, X2024, X2025, X2026 and X2028 is output | C |
A
B
C
Using the GTS, clear the Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Using the GTS, check for Vehicle Control History (RoB).
| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Result | Proceed to |
|---|---|
| Vehicle control history (RoB) is not output | A |
| Vehicle control history (RoB) is output | B |
A
B
Clear the DTCs.
Reproduce the detection conditions of the recorded DTC.
Refer to the flowchart for the detection conditions for each of the DTCs.
Recheck for DTCs.
Attempt to duplicate the malfunction and check if the DTCs are output again.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC is output | B |
A
B
Check whether the millimeter wave radar sensor assembly and surrounding area is dirty or obstructed by foreign matter.
Check that the following situations do not occur.
A non-genuine radar sensor cover is installed
The millimeter wave radar sensor assembly or radar sensor cover and its surrounding area are dirty
An accessory, such as bull bars, a grille guard, etc., which interferes with millimeter radio waves is installed
The radar sensor cover or its surrounding area has been painted or has a sticker attached
There is foreign matter attached to or between the radar sensor cover or millimeter wave radar sensor assembly
Clean away any dirt or foreign matter that is adhering to the area around the millimeter wave radar sensor assembly.
| Proceed to |
|---|
| NEXT |
NEXT
Before inspecting the multi-information display, be sure to first turn the ignition switch off and then to ON again.
Turn the ignition switch off.
Turn the ignition switch to ON.
Check whether "Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" is displayed on the multi-information display.
| Result | Proceed to |
|---|---|
| Not displayed | A |
| Displayed | B |
A
B
Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.
Triangle Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(TRIANGLE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTD8,
Flat Surface Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(FLAT SURFACE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTDA,
Driving Adjustment: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>DRIVING ADJUSTMENT202409,999999,_51,_083055,_0401007,RM100000002NTD7,
Using the GTS, read the following Data List item for the front radar system.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| On-Line Calibration Angle (Horizontal) | Calibrated angle value (horizontal) | -12.8 to 12.7 deg | Learned value | - |
| Tester Display |
|---|
| On-Line Calibration Angle (Horizontal) |
The value displayed is less than -0.5 to 0.5 deg.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.
Triangle Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(TRIANGLE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTD8,
Flat Surface Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(FLAT SURFACE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTDA,
Driving Adjustment: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>DRIVING ADJUSTMENT202409,999999,_51,_083055,_0401007,RM100000002NTD7,
Explain to the customer that the "Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" message on the multi-information display was caused by dirt or foreign matter adhering to the area around the millimeter wave radar sensor assembly, and that the situation has been corrected.
| Proceed to |
|---|
| NEXT |
NEXT
Refer to Problem Symptoms Table.
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table. | A |
| Fault is listed in Problem Symptoms Table. | B |
A
B
Check the condition of the PCS warning light.
| Result | Proceed to |
|---|---|
| Only the PCS warning light is illuminated. | A |
| The PCS warning light is not illuminated. | B |
A
B
Check for vehicle control history (RoB) and note any codes that are output.
| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Proceed to |
|---|
| NEXT |
NEXT
Check for DTCs.
| Result | Proceed to |
|---|---|
| DTC is output | A |
| DTCs are not output | B |
A
B
Check detection condition for the confirmed pre-collision system DTC.
| Proceed to |
|---|
| NEXT |
NEXT
Explain to the customer the cause of the previously stored DTC and that the output reason has been cleared.
Check for vehicle control history (RoB) and note any codes that are output.
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Record the vehicle control history (RoB).
| Result | Proceed to |
|---|---|
| Vehicle control history (RoB) is not output | A |
| Vehicle control history (RoB) is output | B |
A
B
Check the conditions when pre-collision system operates or does not operate.
| Result | Proceed to |
|---|---|
| Any condition is met. | A |
| No condition is met. | B |
A
B
Check for vehicle control history (RoB) and note any codes that are output.
Based on the customer's inquiry, check the corresponding factors in the vehicle control history (RoB), such as the detection time and date, trip information and elapsed time.
| Proceed to |
|---|
| NEXT |
NEXT
Explain to the customer the cause of the previously stored vehicle control history and that the output reason has been cleared.
After the explanation, make sure to clear vehicle control history.
| Tester Display |
|---|
| Vehicle Control History (RoB) |
Before performing beam axis adjustment, check the fitting of the front bumper cover and radiator grille assembly and confirm that there is no warping or deformation.
Adjust the reflector height.
Triangle Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(TRIANGLE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTD8,
Flat Surface Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(FLAT SURFACE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTDA,
Place the reflector.
Triangle Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(TRIANGLE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTD8,
Flat Surface Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(FLAT SURFACE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTDA,
Turn the cruise control main switch on.
Check the amount of misalignment and make a note.
| Tester Display |
|---|
| Front Beam Axis Misalignment Reading |
| Vertical | -5.0 to 5.0 deg. |
| Horizontal | -0.6 to 0.6 deg. |
| Result | Proceed to |
|---|---|
| Front beam axis misalignment value is within the specified range. | A |
| Front beam axis misalignment value is not within the specified range. | B |
A
B
Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.
Triangle Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(TRIANGLE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTD8,
Flat Surface Target: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>TARGET ADJUSTMENT(FLAT SURFACE TARGET)202409,999999,_51,_083055,_0401007,RM100000002NTDA,
Driving Adjustment: Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>DRIVING ADJUSTMENT202409,999999,_51,_083055,_0401007,RM100000002NTD7,