CHASSIS - BRAKE
025CH50P
Normal system code is displayed
025CH56P
DTC is displayed
Service Tip
The skid control ECU uses the CAN protocol for diagnostic communication. Therefore, a
hand-held tester and a dedicated adapter [CAN VIM (Vehicle Interface Module)] are required for
accessing diagnostic data. For details, see the 2007 Camry Hybrid Vehicle Repair Manual (Pub.
No. RM02H0U).
CH-70
2) Diagnosis
If a failure occurs in one of the sensors or actuators in the brake system, the skid control ECU informs
the driver of the failure in the brake system by illuminating the ECB* warning light, brake system
warning light, or ABS warning light in the combination meter, or displaying a VSC warning
message/ “CHECK VSC SYSTEM” (on the multi-information display).
At the same time, a DTC (Diagnostic Trouble Code) is stored in memory. The DTC can be accessed
by connecting the SST (09843-18040) between the Tc and CG terminals of the DLC3 connector and
checking the blinking of the ABS warning light, ECB* warning light, or the “DIAG VSC” that appears
on the multi-information display. Another way to access the DTC is to connect a hand-held tester and
read the code that appears on the tester.
This system has a sensor signal check (test mode) function. This function is activated by connecting
the SST (09843-18040) between the Ts and CG terminals of the DLC3 or by connecting a hand-held
tester.
If the CAN has communication error ECU or sensors, multiple DTCs are output simultaneously to
indicate the malfunction location.
Three-digit information codes have been provided in the conventional DTC as subset of a primary
five-digit code. This enables the troubleshooting procedure to further narrow down a trouble area to
identify a problem.
For details on the DTC that are stored in skid control ECU memory and the DTC that are output
through the sensor signal check function, see the 2007 Camry Hybrid Vehicle Repair Manual (Pub.
No. RM02H0U).
*: ECB (Electronically Controlled Brake System)
Display example of the multi-information display
3) Fail-Safe
If a failure occurs in the skid control ECU, sensors, and / or brake actuators, the system continues
effecting brake control by excluding the failed area and using only the areas that are operating
normally.
If the regenerative brake becomes unusable due to a failure in communication with the THS ECU, the
skid control ECU uses the hydraulic brake force to control the entire braking force.
Содержание Camry Hybrid AHV40
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