Toyota Yaris: Vehicle Stability Control System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the GTS.
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
NEXT |
| |
2. | CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer and confirm the problem.
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NEXT |
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3. | CHECK DTC AND FREEZE FRAME DATA* |
(a) Check and record DTCs and Freeze Frame Data.
(1) Check and record DTCs.
Chassis > Brake > Trouble Codes
(2) Check and record Freeze Frame Data.
(b) Clear the DTCs and Freeze Frame Data.
Chassis > Brake > Clear DTCs
(c) Reconfirm the DTCs.
(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.
Chassis > Brake > Trouble Codes
HINT:
-
When CAN communication system DTCs are output, repair the CAN communication system first.
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-
If DTCs related to momentary interruptions are output, perform troubleshooting for those DTCs first.
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If the GTS cannot communicate with the skid control ECU (brake actuator assembly), inspect the CAN communication system.
Click here
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If there is no response from the skid control ECU (brake actuator assembly), inspect the supply power circuit.
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(d) Check the Vehicle Control History.
Result | Proceed to |
DTCs are not output. (Problem symptom occurs.) | A |
DTCs are output. | B |
DTCs are not output. (Problem symptom does not occur.) | C |
DTCs are not output. (Vehicle control history occurs.) | D |
A |
| PROBLEM SYMPTOMS TABLE |
B |
| REPAIR CIRCUITS INDICATED BY OUTPUT DTCS* |
C |
| USE SIMULATION METHOD TO CHECK |
D |
| PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY* |
CHECK FOR INTERMITTENT PROBLEMS CHECK FOR INTERMITTENT PROBLEMS HINT: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected using the Data List function of the GTS...
Other information:
DESCRIPTION The millimeter wave radar sensor assembly performs self-diagnosis to check for misalignment of its beam axis. If misalignment is detected, the millimeter wave radar sensor assembly stores DTC C1A1100. DTC No. Detection Item DTC Detection Condition Trouble Area C1A1100 Front Radar Sensor Optical Axis Misalignment Malfunction When the ignition switch is ON, the millimeter wave radar sensor assembly detects beam axis misalignment
Millimeter wave radar sensor assembly beam axis adjustment
Millimeter wave radar sensor assembly
CAUTION / NOTICE / HINT NOTICE:
When replacing the millimeter wave radar sensor assembly, always replace it with a new one...
DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the No. 1 indoor electrical key antenna assembly (front floor). For the No. 1 indoor electrical key antenna assembly (front floor) to detect when the electrical key transmitter sub-assembly is in the cabin, the signal from the certification ECU (smart key ECU assembly) requesting a response from the electrical key transmitter sub-assembly is transmitted inside the vehicle...
Categories
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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