Circuit Description
WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
The accumulator pressure sensor is connected to the skid control ECU in the master cylinder solenoid.
HINT:
If this code (C1254/54) is output, the following conditions will occur:
- The ABS, VSC TRAC, and brake warning lights and slip and VSC OFF indicator lights will come on.
- The skid control buzzer sounds.
- Control of all systems other than EBD is canceled.DIAGNOSTIC TROUBLE CODE TABLE
DTC No. DTC Detection Condition Trouble Area C1254/54 Accumulator pressure sensor malfunction.
(Fluid pressure does not change when the pump operates or when the brake is applied.)- Hydraulic brake booster
- Accumulator pressure sensor
- Master cylinder pressure sensor