Toyota Yaris: Dynamic Radar Cruise Control System / Brake System (P157800)
DESCRIPTION
When a malfunction in the vehicle stability control system is detected, DTC P157800 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
| P157800 | Brake System | When the ignition switch is ON and the dynamic radar cruise control system is operating, a malfunction in the vehicle stability control system is detected for 0.2 seconds or more. | Vehicle stability control system | Radar Cruise1 |
PROCEDURE
| 1. | GO TO VEHICLE STABILITY CONTROL SYSTEM |
HINT:
If DTC P157800 is output by the dynamic radar cruise control system, perform troubleshooting for the vehicle stability control system.
Click here
| NEXT |
| END |
DESCRIPTION When the ECM detects an internal malfunction, DTC P057504 or P057549 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from P057504 Cruise Control System Internal Failure When the dynamic radar cruise control system is operating, the ECM detects a malfunction in the internal cancel circuit for 0...
DESCRIPTION When the ECM detects that it is not functioning normally, DTC P160700 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from P160700 Cruise Control Input Processor When the ignition switch is ON and control of vehicle speed by the dynamic radar cruise control system is prohibited by the sub-CPU, the dynamic radar cruise control system operates for 0...
Other information:
INSTALLATION PROCEDURE 1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR HINT: Perform "Inspection After Repair" after replacing the engine coolant temperature sensor. Click here
(a) Apply a light coat of engine coolant to the O-ring of the engine coolant temperature sensor...
FREEZE FRAME DATA DESCRIPTION The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction...
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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