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DTC C1256/56 Accumulator Low Pressure: Description

DTC TROUBLE DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
C1256/56 Any of the following 1. through 7. is detected.
  1. With the vehicle running, when the pressure switch (PL) detects high pressure, although ABS, TRAC or VSC does not control, the pressure switch (PL) detects low pressure for more than 1.4 sec.
  2. With the vehicle running, when the pressure switch (PL) detects high pressure, although ABS, TRAC or VSC does not control, the pressure switch (PL) detects low pressure for more than 0.2 sec.
  3. After the ignition switch is turned ON, the pressure switch (PL) detects low pressure for more than 64 sec.
  4. With the vehicle running, after ignition switch has been ON, the pressure switch (PL) detects low pressure for more than 0.2 sec. although ABS, TRAC or VSC does not control and when the pressure switch is ON and stuck under high pressure.
  5. With the vehicle running, after ignition switch has been ON, the pressure switch (PL) detects low pressure for more than 0.2 sec. when ABS, TRAC or VSC controls, the pressure switch is ON and stuck under high pressure.
  6. With the vehicle running, after ignition switch is ON, the pressure switch (PL) is stuck to under low pressure although ABS, TRAC or VSC does not control for more than 1.4 sec.
  7. With the vehicle running, after ignition switch is ON, the pressure switch (PL) is stuck under low pressure when ABS, TRAC or VSC controls for more than 0.2 sec.
  • Accumulator
  • Pressure switch (PH or PL)
  • Hydraulic brake booster pump motor