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Home >> Suzuki >> 2012 >> SX4 Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Continuously Variable Transaxle (CVT)) >> Diagnostic Information and Procedures >> Fail-Safe Table

Fail-Safe Table

WARNING: This page is about a different variant/trim than selected.

This function is provided by the safe mechanism that assures safe driveability even when the solenoid valve, sensor or its circuit fails. The following table shows the fail-safe function for each fail condition of sensor, solenoid valve or its circuit.

SYMPTOM DIAGNOSIS DESCRIPTION CHART

DTC DTC name Fail-safe operation
P0602  Control Module Programming Error -
P062F  Internal Control Module EEPROM Error -
P0641  Sensor Reference Voltage "A" Circuit/Open -
P0703  Brake Switch "B" Circuit TCM controls actuators assuming that brake light switch is always on.
P0705  Transmission Range Sensor Circuit "A" (PRNDL Input)
  • TCM controls actuators assuming that select range is "D" range.
  • TCM stops following operation/function.
    • Lock-up control operation
    • Manual shift mode function
  • TCM transmits torque request signal to ECM (torque reduction).
  • TCM transmits engine speed limit request signal to ECM.
P0707  Transmission Range Sensor "A" Circuit Low
P0711  Transmission Fluid Temperature Sensor "A" Circuit Range/Performance TCM controls actuators assuming that CVT fluid temperature is specified value.
P0712  Transmission Fluid Temperature Sensor "A" Circuit Low
P0713  Transmission Fluid Temperature Sensor "A" Circuit High
P0716  Input/Turbine Speed Sensor "A" Circuit Range/Performance
  • TCM controls the actuator in presumption gear ratio calculated from secondary pulley speed and the stepper motor position.
  • TCM inhibits following operation/function.
    • Lock-up control operation
    • Manual shift mode function
  • TCM delays changing speed of gear ratio.
P0717  Input/Turbine Speed Sensor "A" Circuit No Signal
P0721  Output Speed Sensor Circuit Range/Performance
  • TCM controls the actuator by gear ratio depending on accelerator pedal position and primary pulley speed.
  • TCM inhibits following operation/function.
    • Lock-up control operation
    • Manual shift mode function
  • TCM delays changing speed of gear ratio.
P0722  Output Speed Sensor Circuit No Signal
P0741  Torque Converter Clutch Circuit Performance or Stuck Off TCM stops lock-up control operation.
P0776  Pressure Control Solenoid "B" Performance/Stuck Off -
P0777  Pressure Control Solenoid "B" Stuck On TCM transmits torque request signal to ECM (torque reduction).
P0826  Manual mode Control Circuit TCM stops manual shift mode.
P0842  Transmission Fluid Pressure Sensor/Switch "A" Circuit Low
  • TCM controls actuators assuming that line pressure is 0 MPa (0 kgf/cm2 , 0 psi, 0 bar).
  • TCM transmits torque request signal to ECM (torque reduction).
P0843  Transmission Fluid Pressure Sensor/Switch "A" Circuit High
P0847  Transmission Fluid Pressure Sensor/Switch "B" Circuit Low
  • TCM controls actuators assuming that secondary pressure is 0 MPa (0 kgf/cm2 , 0 psi, 0 bar).
  • TCM transmits torque request signal to ECM (torque reduction).
P0848  Transmission Fluid Pressure Sensor/Switch "B" Circuit High
P0871  Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance
  • TCM transmits torque request signal to ECM (torque reduction).
  • Gear ratio is fixed at gear ratio of point that this DTC was detected.
P0961  Pressure Control Solenoid "A" Control Circuit Range/Performance
  • TCM transmits torque request signal to ECM (torque reduction).
  • The following items are executed according to the detection frequency.
    • TCM transmits torque request signal to ECM (torque reduction).
    • TCM stops lock-up control.
    • TCM limits shift speed of gear ratio.
    • TCM controls gear ratio assuming that is specified value.
P0962  Pressure Control Solenoid "A" Control Circuit Low TCM maximizes line pressure value (duty 0%).
P0963  Pressure Control Solenoid "A" Control Circuit High TCM maximizes line pressure value (duty 0%).
P0966  Pressure Control Solenoid "B" Control Circuit Low TCM maximizes secondary pressure value (duty 0%).
P0967  Pressure Control Solenoid "B" Control Circuit High TCM maximizes secondary pressure value (duty 0%).
P1706  Torque Request Communication Error from TCM -
P1810  Lockup/Select Control Circuit TCM controls actuators assuming that lock-up/select switching solenoid valve is OFF.
P1816  Stepper Motor Circuit Malfunction
  • Gear ratio is fixed at gear ratio of point that this DTC was detected.
  • TCM stops lock-up control.
P1818  Stepper Motor Performance -
P1824  Calibration Data Reading Error
  • TCM controls the secondary pressure slightly higher than the specified value.
  • TCM inhibits the display of shift position indicator in combination meter in "P" or "N" range. CM stops lock-up control.
P1825  TCM-Valve Body Assembly Correlation TCM controls the secondary pressure slightly higher than the specified value.
P1970  Sensor Ground Circuit Malfunction
  • TCM stops following operation/function.
    • Lock-up control operation
    • Manual shift mode function
  • TCM controls actuators assuming that CVT fluid temperature is specified value.
  • TCM controls actuators assuming that line pressure is 0 MPa (0 kgf/cm2 , 0 psi, 0 bar).
  • TCM controls actuators assuming that secondary pressure is 0 MPa (0 kgf/cm2 , 0 psi, 0 bar).
  • TCM transmits torque request signal to ECM (torque reduction).
  • Gear ratio is fixed at gear ratio of point that this DTC was detected.
P2763  Torque Converter Clutch Pressure Control Solenoid Control Circuit High TCM stops lock-up operation.
P2764  Torque Converter Clutch Pressure Control Solenoid Control Circuit Low
U0073  Control Module Communication Bus Off -
U0100  Lost Communication With ECM
  • Engine speed is assumed to be specified value.
  • Engine torque is assumed to be maximum value.
  • TCM stops lock-up control.
  • Throttle opening angle is assumed to be 0.0%.
U0121  Lost Communication With ABS -
U0140  Lost Communication With BCM -