Toyota Tacoma (2015-2018) Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Perform the following procedure to troubleshoot the dynamic radar cruise control system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
INSPECT BATTERY VOLTAGE |
(a) Measure the battery voltage with the ignition switch off.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
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3. |
INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY (BEAM AXIS MISALIGNMENT READING)* |
(a) Adjust the reflector height.
Click here .gif)
(b) Place the reflector.
Click here
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Turn the cruise control main switch (ON-OFF) on.
(g) Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Front Beam Axis Misalignment Reading.
(h) Check the amount of misalignment and make a note.
(i) Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Front Beam Axis Offset Reading.
(j) Check the amount of misalignment and make a note.
(k) Calculate the "Dealership Axis Offset Angle (with On-line Calibration Angle)" using the values "Front Beam Axis Misalignment Reading" and "Front Beam Axis Offset Reading".
(1) "Dealership Axis Offset Angle (with On-line Calibration Angle)" = "Front Beam Axis Misalignment Reading" - "Front Beam Axis Offset Reading"
Standard:
Dealership Axis Offset Angle (with On-line Calibration Angle)
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Vertical |
-5.2 to 5.2 deg. |
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Horizontal |
-0.6 to 0.6 deg. |
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Result |
Proceed to |
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The dealership axis offset angle (with on-line calibration angle) is within the specified range. |
A |
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The dealership axis offset angle (with on-line calibration angle) is not within the specified range. |
B |
| B | .gif) |
GO TO STEP 12 |
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4. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check that the CAN communication system is functioning normally.
Click here
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Result |
Proceed to |
|---|---|
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CAN communication system DTCs are not output |
A |
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CAN communication system DTCs are output |
B |
| B | |
GO TO CAN COMMUNICATION SYSTEM |
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5. |
CHECK METER / GAUGE SYSTEM* |
(a) Use the Techstream to check if the meter / gauge system is functioning normally.
Click here
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Result |
Proceed to |
|---|---|
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Meter / gauge system DTCs are not output |
A |
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Meter / gauge system DTCs are output |
B |
| B | |
GO TO METER / GAUGE SYSTEM |
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6. |
CHECK VEHICLE STABILITY CONTROL SYSTEM |
(a) Use the Techstream to check if the vehicle stability control system is functioning normally.
Click here
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Result |
Proceed to |
|---|---|
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Vehicle stability control system DTCs are not output |
A |
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Vehicle stability control system DTCs are output |
B |
| B | |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
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7. |
CHECK FOR DTCs (DYNAMIC RADAR CRUISE CONTROL SYSTEM) |
(a) Check for DTCs and note any codes that are output.
Click here
(b) Clear the DTCs.
Click here
(c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.
Click here
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Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTCs are output |
B |
| B | |
GO TO DTC CHART |
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8. |
PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
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Result |
Proceed to |
|---|---|
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Fault is not listed in Problem Symptoms Table |
A |
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Fault is listed in Problem Symptoms Table |
B |
| B | |
ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE |
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9. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Data List / Active Test
Click here
(b) Road test
Click here
(c) Operation check
Click here
(d) Terminals of ECU
Click here
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10. |
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.
Click here
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11. |
CONFIRMATION TEST |
| NEXT | |
END |
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12. |
ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Perform millimeter wave radar sensor assembly adjustment.
Click here
| NEXT | |
GO TO STEP 4 |
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
ECM
Millimeter Wave Radar Sensor Assembly
...
Road Test
ROAD TEST
PROBLEM SYMPTOM CONFIRMATION
HINT:
The dynamic radar cruise control system has 2 cruise control modes:
constant speed control mode and vehicle-to-vehicle distance control mode ...
Other materials:
Freeze Frame Data
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) Using the Techstream, check the vehicle condition (ECU, sensor) when the
brake system operates or a DTC is output.
2. CHECK FREEZE FRAME DATA WHEN BRAKE SYSTEM OPERATES
(a) Freeze frame data is stored when the brake system operates. The freeze frame
...
Vehicle Speed Sensor (C1A45)
DESCRIPTION
The blind spot monitor sensor receives vehicle speed signals from the skid control
ECU (brake actuator assembly) via CAN communication.
DTC Code
DTC Detection Condition
Trouble Area
C1A45
A fail flag is transmitted from the ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL REAR BUMPER SIDE STAY LH
(a) Install the rear bumper side stay LH with the 2 bolts.
Torque:
30 N·m {306 kgf·cm, 22 ft·lbf}
2. INSTALL REAR BUMPER SIDE STAY RH
HINT:
Use the same procedure as for ...
