DESCRIPTION
According to current control by the ECM, the shift solenoid valve SLS controls secondary pulley pressure and belt clamping pressure in accordance with the input shaft torque.
Scheme 225
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P282B | Pressure Control Solenoid "K" Electrical (Shift Solenoid Valve SLS) | Diagnosis Condition The vehicle is being driven. Malfunction Status An open or short circuit in the shift solenoid valve SLS circuit is detected. Malfunction Time 1 second or more Other 1 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SLS) ECM | Comes on | DTC stored |
MONITOR DESCRIPTION
This DTC indicates an open or short circuit in the shift solenoid valve SLS circuit. If there is an open or short circuit in the shift solenoid valve SLS circuit, the ECM detects the problem, illuminates the MIL and stores this DTC.
According to current control by the ECM, the shift solenoid valve SLP controls primary pulley pressure in accordance with the requested gear ratio to perform gear ratio changes.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2820 | Pressure Control Solenoid "J" Performance or Stuck Off | Diagnosis Condition The oil pressure sensor output value is 0.4 MPa (4.1 kgf/cm 2 , 58 psi) or more and the target gear ratio is less than 1.0. Malfunction Status The actual gear ratio is 2.0 or more. Malfunction Time 2 seconds or more Other 1 trip detection logic Diagnosis Condition The oil pressure sensor output value is 0.4 MPa (4.1 kgf/cm 2 , 58 psi) or more and the target gear ratio is 2.0 or more. Malfunction Status The actual gear ratio is less than 0.5. Malfunction Time 1.5 seconds or more Other 1 trip detection logic | Continuously variable transaxle assembly (Shift solenoid valve SLP) | Comes on | DTC stored |
The ECM compares the actual gear ratio with the target gear ratio. When the actual gear ratio and target gear ratio are different, the ECM detects the problem, illuminates the MIL and stores this DTC.
Based on the signal received by the shift solenoid valve SL, the ECM uses the shift solenoid valve SLU to control the lock-up clutch pressure.
If there is an open or short in the shift solenoid valve SL circuit, the ECM stops sending current to the defective shift solenoid valve.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2769 | Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) | Diagnosis Condition Lock-up is operating. Malfunction Status A short in the shift solenoid valve SL circuit is detected. Malfunction Time Detected 1 time or more consecutively Other 2 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SL) ECM | Comes on | DTC stored |
| P2770 | Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) | Diagnosis Condition Lock-up is operating. Malfunction Status An open in the shift solenoid valve SL circuit is detected. Malfunction Time Detected 1 time or more consecutively Other 2 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SL) ECM | Comes on | DTC stored |
These DTCs indicate an open or short in the shift solenoid valve SL circuit. If there is an open or short in the shift solenoid valve SL circuit, the ECM detects the problem, illuminates the MIL and stores a DTC.
The ECM detects the input shaft speed based on the signal from the revolution sensor (transmission revolution sensor (NIN)) and performs gear ratio control.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2767 | Input / Turbine Speed Sensor "B" Circuit No Signal | Diagnosis Condition Driving with shift lever in D and output shaft speed 300 RPM or more (vehicle speed is approximately 7 km/h (4 mph) or more). Malfunction Status The speed indicated by the transmission revolution sensor (NIN) is less than 300 RPM. Malfunction Time 2 seconds Other 1 trip detection logic | Wire harness or connector Transmission revolution sensor (NIN) ECM | Comes on | DTC stored |
The ECM receives a signal from the revolution sensor (transmission revolution sensor (NIN)) installed in the continuously variable transaxle and determines the input shaft speed in order to control the gear ratio. If the ECM detects no signal from the revolution sensor (transmission revolution sensor (NIN)) even while the vehicle is moving, it will determine that there is a malfunction in the revolution sensor (transmission revolution sensor (NIN)). The ECM will illuminate the MIL and store this DTC.
The ECM uses the shift solenoid valve SLU to perform forward and reverse clutch control or lock-up clutch control.
Scheme 226
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2759 | Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) | Diagnosis Condition The vehicle is being driven. Malfunction Status An open or short in the shift solenoid valve SLU circuit is detected. Malfunction Time 1 second or more Other 1 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SLU) ECM | Comes on | DTC stored |
This DTC indicates an open or short in the shift solenoid valve SLU circuit. If there is an open or short in the shift solenoid valve SLU circuit, the ECM detects the problem, illuminates the MIL and stores this DTC.
The ECM stores DTC P1589 if deceleration sensor zero point calibration is not performed or failed after system components such as the ECM are replaced.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P1589 | Acceleration Sensor Learning Value | Diagnosis Condition The vehicle speed is 2 km/h (1.2 mph) or more. Malfunction Status Deceleration sensor zero point calibration has not been completed. Malfunction Time - Other 1-trip detection logic Diagnosis Condition Deceleration sensor zero point calibration is performed. Malfunction Status The learned values of deceleration sensor zero point calibration are abnormal (out of normal range). Malfunction Time - Other 1-trip detection logic | Deceleration sensor zero point calibration has not been performed Vehicle was not stabilized during deceleration sensor zero point calibration Airbag sensor assembly (Yaw rate and acceleration sensor) ECM | Does not come on | DTC stored |
The ECM determines the vehicle inclination based on a signal from the airbag sensor assembly (yaw rate and acceleration sensor). If a malfunction of the airbag sensor assembly (yaw rate and acceleration sensor) is determined based on a malfunction signal from the brake actuator assembly (skid control ECU), the ECM cancels neutral control as a fail-safe function.
HINT
- The airbag sensor assembly (yaw rate and acceleration sensor) signal is sent to the brake actuator assembly (skid control ECU) via CAN communication.
- If CAN communication DTCs are output, perform troubleshooting for those DTCs first.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P1586 | Acceleration Sensor Malfunction | Diagnosis Condition The ignition switch is ON. Malfunction Status At a vehicle speed 30 km/h (18 mph) or more, the difference between longitudinal G calculated based on the airbag sensor assembly (yaw rate and acceleration sensor) (G sensor) value and longitudinal G calculated based on the vehicle speed exceeds 0.35 G for 60 seconds or more. Malfunction Time 3 seconds or more Other 1-trip detection logic Diagnosis Condition The ignition switch is ON. Malfunction Status The airbag sensor assembly (yaw rate and acceleration sensor) signal does not change 16 times or more while the vehicle speed decreases from 30 km/h (18 mph) to 0 km/h (0 mph). Malfunction Time 3 seconds or more Other 1-trip detection logic | Airbag sensor assembly (Yaw rate and acceleration sensor) Brake actuator assembly (Skid control ECU) CAN communication system | Does not come on | DTC stored |
The ECM determines the vehicle inclination based on a signal from the airbag sensor assembly (yaw rate and acceleration sensor). If a malfunction in the airbag sensor assembly (yaw rate and acceleration sensor) is determined based on a malfunction signal from the brake actuator assembly (skid control ECU), the ECM cancels neutral control as a fail-safe function.
HINT
- The airbag sensor assembly (yaw rate and acceleration sensor) signal is sent to the brake actuator assembly (skid control ECU) via CAN communication.
- If CAN communication DTCs are output, perform troubleshooting for those DTCs first.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P1585 | Acceleration Sensor Circuit | Diagnosis Condition The ignition switch is ON. Malfunction Status The output value of the airbag sensor assembly (yaw rate and acceleration sensor) remains at -1.5 G or less, or 1.5 G or more for 1.2 seconds or more. Malfunction Time 0.5 seconds or more Other 1-trip detection logic Diagnosis Condition The ignition switch is ON. Malfunction Status The power source voltage to the airbag sensor assembly (yaw rate and acceleration sensor) remains at 4.4 V or less, or 5.6 V or higher for 1.2 seconds or more. Malfunction Time 0.5 seconds or more Other 1-trip detection logic Diagnosis Condition The ignition switch is ON. Malfunction Status No signal from the airbag sensor assembly (yaw rate and acceleration sensor) is detected 7 times or more. Malfunction Time 0.5 seconds or more Other 1-trip detection logic Diagnosis Condition The ignition switch is ON. Malfunction Status With the vehicle stopped, the difference between GL1 and GL2 does not become less than 0.4 G within 60 seconds after exceeding 0.6 G. Malfunction Time 0.5 seconds or more Other 1-trip detection logic Diagnosis Condition The ignition switch is ON. Malfunction Status A airbag sensor assembly (yaw rate and acceleration sensor) power source voltage malfunction signal is received for 10 seconds or more with the vehicle speed at 3 km/h (1.8 mph) or more. Malfunction Time 0.5 seconds or more Other 1-trip detection logic | Airbag sensor assembly (Yaw rate and acceleration sensor) Brake actuator assembly (Skid control ECU) CAN communication system | Does not come on | DTC stored |
Scheme 227
Based on the signal received by the shift solenoid valve SC, the ECM uses the shift solenoid valve SLU to control the forward and reverse clutch pressure.
If there is an open or short in the shift solenoid valve SC circuit, the ECM stops sending current to the defective shift solenoid valve.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P099B | Shift Solenoid "G" Control Circuit Low (Shift Solenoid Valve SC) | Diagnosis Condition The vehicle is being driven. Malfunction Status There is a short in the shift solenoid valve SC circuit. Malfunction Time 3 seconds Other 1-trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SC) ECM | Comes on | DTC stored |
| P099C | Shift Solenoid "G" Control Circuit High (Shift Solenoid Valve SC) | Diagnosis Condition The vehicle is being driven. Malfunction Status There is an open in the shift solenoid valve SC circuit. Malfunction Time 0.5 seconds Other 1-trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SC) ECM | Comes on | DTC stored |
These DTCs indicate an open or short in the shift solenoid valve SC circuit. If there is an open or short in the shift solenoid valve SC circuit, the ECM detects the problem and stores a DTC.
The ECM receives signals sent from the skid control ECU via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding ECU or sensor.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| U0129 | Lost Communication with Brake System Control Module | Diagnosis Condition The ignition switch is ON. Malfunction Status There is no communication between the ECM and skid control ECU. Malfunction Time 2.22 seconds Other 1-trip detection logic | CAN communication system Brake actuator assembly (Skid control ECU) ECM | Comes on | DTC stored |
According to current control by the ECM, the shift solenoid valve SLP controls primary pulley pressure in accordance with the requested gear ratio to perform gear ratio changes.
Scheme 228
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2822 | Pressure Control Solenoid "J" Electrical (Shift Solenoid Valve SLP) | Diagnosis Condition The vehicle is being driven. Malfunction Status An open or short in the shift solenoid valve SLP circuit is detected. Malfunction Time 1.049 seconds or more Other 1 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Shift solenoid valve SLP) ECM | Comes on | DTC stored |
This DTC indicates an open or short in the shift solenoid valve SLP circuit. If there is an open or short in the shift solenoid valve SLP circuit, the ECM detects the problem, illuminates the MIL and stores this DTC.
The park/neutral position switch assembly and transmission floor shift assembly (transmission control switch) detect the shift lever position and send signals to the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0705 | Transmission Range Sensor Circuit Malfunction (PRNDL Input) | Diagnosis Condition The ignition switch is ON and battery voltage is 10.5 V or more. Malfunction Status 2 or more of the following signals are ON simultaneously. (NSW, P, N) input signal R input signal D input signal B input signal Malfunction Time 2 seconds Other 2-trip detection logic Diagnosis Condition The ignition switch is ON and battery voltage is 10.5 V or more. Malfunction Status All signals are OFF simultaneously. NSW input signal P input signal R input signal N input signal D input signal B input signal Malfunction Time 60 seconds Other 2-trip detection logic Diagnosis Condition The ignition switch is ON and battery voltage is 10.5 V or more. Malfunction Status Any of the following signals and the S (SDSW) or M signal are ON simultaneously. NSW input signal P input signal R input signal N input signal B input signal Malfunction Time 2 seconds Other 2-trip detection logic | Wire harness or connector Park/neutral position switch assembly Transmission floor shift assembly (Transmission control switch) ECM | Comes on | DTC stored |
This DTC indicates a problem with the park/neutral position switch or the wire harness in the park/neutral position switch circuit.
The park/neutral position switch detects the shift lever position and sends a signal to the ECM. For security, the park/neutral position switch detects the shift lever position so that the engine can be started only when the shift lever is in P or N.
The park/neutral position switch sends a signal to the ECM according to the shift lever position (P, R, N, D, B, S or M).
The ECM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The ECM illuminates the MIL and stores this DTC.
The CVT fluid temperature sensor converts the fluid temperature into a resistance value which is detected by the ECM.
The sensor resistance changes with the CVT fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies voltage to the temperature sensor through ECM terminal THO1 and calculates the fluid temperature based on the voltage signal.
HINT
The CVT fluid temperature is likely to increase under conditions such as towing, climbing hills and in traffic.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0711 | Transmission Fluid Temperature Sensor "A" Circuit Range / Performance | Diagnosis Condition All of the following conditions (a), (b), (c), (d) and (e) are met: (a) Time after engine start: 10 minutes or more (b) Accumulated driving time: 2 minutes and 55 seconds (c) Driving distance after engine start: 5 km (3.1 miles) or more (d) Intake air and engine coolant temperatures at engine start: 15°C (59°F) or more (e) Soak time: 5 hours Malfunction Status CVT fluid temperature is less than 20°C (68°F). Malfunction Time 3 seconds Other 2-trip detection logic Diagnosis Condition All of the following conditions (a), (b), (c) and (d) are met: (a) Time after engine start: 18 minutes and 20 seconds or more (b) Accumulated driving time: 4 minutes and 10 seconds (c) Driving distance after engine start: 8 km (5 miles) or more (d) Intake air and engine coolant temperatures at engine start: -10°C (14°F) or more Malfunction Status CVT fluid temperature is less than 20°C (68°F). Malfunction Time 3 seconds Other 2-trip detection logic Diagnosis Condition All of the following conditions (a), (b), (c) and (d) are met: (a) Time after engine start: 30 minutes or more (b) Accumulated driving time: 6 minutes and 40 seconds (c) Driving distance after engine start: 16 km (9.9 miles) or more (d) Intake air and engine coolant temperatures at engine start: -15°C (5°F) or more Malfunction Status CVT fluid temperature is less than 20°C (68°F). Malfunction Time 3 seconds Other 2-trip detection logic Diagnosis Condition All of the following conditions (a), (b) and (c) are met: (a) Time after engine start: 55 minutes or more (b) Accumulated driving time: 12 minutes and 30 seconds (c) Driving distance after engine start: 27 km (16.8 miles) or more Malfunction Status CVT fluid temperature is less than 20°C (68°F). Malfunction Time 3 seconds Other 2-trip detection logic Diagnosis Condition Both of the following conditions (a) and (b) are met: (a) Duration time from Engine coolant temperature reach to 60°C (140°F) or more: 10 seconds or more (b) Engine coolant temperature (12 seconds after engine start): Less than 35°C (95°F) Malfunction Status CVT fluid temperature is 100°C (212°F) or more. Malfunction Time 3 seconds Other 2-trip detection logic | CVT fluid level Continuously variable transaxle assembly (CVT fluid temperature sensor) | Comes on | DTC stored |
The CVT fluid temperature sensor converts the CVT fluid temperature to an electrical resistance value. Based on the resistance, the ECM determines the CVT fluid temperature and detects open or short circuits in the CVT fluid temperature circuit.
After driving the vehicle for a certain period, the CVT fluid temperature should increase. If the CVT fluid temperature remains below 20°C (68°F), the ECM interprets this as a fault and illuminates the MIL.
When the engine coolant temperature reaches 35°C (95°F) after a cold engine start, if the CVT fluid temperature is 100°C (212°F) or more, the ECM also determines this as a fault, illuminates the MIL, and stores this DTC.
The ECM performs learning control for the belt clamping pressure based on the belt clamping pressure signal, which is output by the oil pressure sensor.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0842 | Transmission Fluid Pressure Sensor/Switch "A" Circuit Low | Diagnosis Condition 2 seconds or more after engine start Malfunction Status Short in oil pressure sensor circuit Malfunction Time 0.5 seconds Other 1-trip detection logic | Wire harness or connector Oil pressure sensor ECM | Comes on | DTC stored |
| P0843 | Transmission Fluid Pressure Sensor/Switch "A" Circuit High | Diagnosis Condition 2 seconds or more after engine start Malfunction Status Open or short to B+ in oil pressure sensor circuit Malfunction Time 0.5 seconds Other 1-trip detection logic | Wire harness or connector Oil pressure sensor ECM | Comes on | DTC stored |
These DTCs indicate an open or short in the oil pressure sensor. If there is an open or short in the oil pressure sensor circuit, the ECM detects the problem and stores a DTC.
The ECM controls the secondary oil pressure calibration based on the secondary oil pressure signal output by the oil pressure sensor.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0841 | Transmission Fluid Pressure Sensor "A" Performance | Diagnosis Condition The requested oil pressure value is 1.4 MPa (14.3 kgf/cm 2 , 203 psi) or more. Malfunction Status The oil pressure sensor output value is less than 0.5 MPa (5.1 kgf/cm 2 , 73 psi). Malfunction Time 2 seconds Other 1 trip detection logic Diagnosis Condition The requested oil pressure value is 1.0 MPa (10.2 kgf/cm 2 , 145 psi) or less. Malfunction Status The difference between the calculated primary pulley pressure and target primary pulley pressure is 2 MPa (20.4 kgf/cm 2 , 290 psi) or more. Malfunction Time 3 seconds Other 1 trip detection logic | Oil pressure sensor ECM | Comes on | DTC stored |
| P2829 | Pressure Control Solenoid "K" Performance (Shift Solenoid Valve SLS) | Diagnosis Condition The requested oil pressure value is 1.0 MPa (10.2 kgf/cm 2 , 145 psi) or less. Malfunction Status The difference between the calculated primary pulley pressure and target primary pulley pressure is less than 0.5 MPa (5.1 kgf/cm 2 , 73 psi). Malfunction Time 3 seconds Other 1 trip detection logic Diagnosis Condition The requested oil pressure value is 1.4 MPa (14.3 kgf/cm 2 , 203 psi) or more. Malfunction Status The oil pressure sensor output value is 0.5 MPa (5.1 kgf/cm 2 , 73 psi) or less. Malfunction Time 2 seconds Other 1 trip detection logic Diagnosis Condition The shift lever is in D, and the vehicle speed is less than 8 km/h (5 mph). Malfunction Status The ratio of the transmission revolution sensor (NIN) speed and the transmission revolution sensor (NOUT) speed exceeds a specified value. Malfunction Time 0.2 seconds Other 1 trip detection logic Diagnosis Condition The oil pressure sensor output value is less than 0.35 MPa (3.6 kgf/cm2, 51 psi) and the target gear ratio is 2.0 or more. Malfunction Status The actual gear ratio is less than 1.0. Malfunction Time 1.5 seconds or more Other 1 trip detection logic | Continuously variable transaxle assembly ECM | Comes on | DTC stored |
The ECM checks for belt clamping high-pressure or low-pressure errors. When a mechanical malfunction is detected in the shift solenoid valve SLS or the oil pressure sensor, the ECM detects the problem, illuminates the MIL and stores a DTC.
The ECM uses the shift solenoid valves SC and SL to switch control of the shift solenoid valve SLU between forward and reverse clutch control and lock-up control in response to driving conditions.
HINT
If DTC P0741 is stored after the engine has stalled, the lock-up shift solenoid valve (shift solenoid valve SL) may be malfunctioning.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0741 | Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL) | Diagnosis Condition The ECM sends a lock-up ON command and turns the shift solenoid valves SC and SL OFF. Malfunction Status The difference between the engine speed (NE) and the transmission revolution sensor (NT) speed is 25 RPM or less. Malfunction Time 1 second or more Other 2 trip detection logic Diagnosis Condition The ECM turns the shift solenoid valves SC and SL ON. Malfunction Status The difference between the transmission revolution sensor (NT) speed and the transmission revolution sensor (NIN) speed is 300 RPM or more. Malfunction Time 1 second or more Other 2 trip detection logic Diagnosis Condition The vehicle is being driven. Malfunction Status The lock-up ON command is sent, but lock-up control is not performed. Malfunction Time 1 second or more Other 2 trip detection logic | Torque converter assembly Continuously variable transaxle assembly | Comes on | DTC stored |
| P075B | Shift Solenoid "G" Performance or Stuck Off | Diagnosis Condition The ECM turns the shift solenoid valves SC and SL OFF. Malfunction Status The difference between the transmission revolution sensor (NT) speed and the transmission revolution sensor (NIN) speed is 300 RPM or more. Malfunction Time 1 second or more Other 2 trip detection logic Diagnosis Condition The vehicle is being driven. Malfunction Status The lock-up ON command is sent, but lock-up control is not performed. Malfunction Time 1 second or more Other 2 trip detection logic Diagnosis Condition The ECM sends a lock-up ON command and turns the shift solenoid valves SC and SL ON. Malfunction Status The difference between the engine speed (NE) and the transmission revolution sensor (NT) speed is 25 RPM or less. Malfunction Time 1 second or more Other 2 trip detection logic | Torque converter assembly Continuously variable transaxle assembly | Comes on | DTC stored |
| P2757 | Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) | Diagnosis Condition The ECM sends a lock-up ON command, and turns the shift solenoid valves SC and SLU OFF and SL ON. Malfunction Status The difference between the engine speed (NE) and the transmission revolution sensor (NT) speed is 25 RPM or less. Malfunction Time 1 second or more Other 2 trip detection logic Diagnosis Condition The vehicle is being driven. Malfunction Status The lock-up signal is on, but the lock-up is off. Malfunction Time 1 second or more Other 2 trip detection logic | Torque converter assembly Continuously variable transaxle assembly | Comes on | DTC stored |
When performing lock-up control (on/off) of the torque converter, the ECM compares the transmission revolution sensor (NT) speed and engine speed (NE) to detect mechanical malfunctions in the shift solenoid valves SL and SC.
If the torque converter does not lock-up while a lock-up ON command is being sent, the ECM detects a mechanical malfunction in the shift solenoid valve SLU.
When the rotating speeds are different, the ECM detects the problem, illuminates the MIL and stores a DTC.
The ECM receives a signal from the revolution sensor (transmission revolution sensor (NOUT)) installed in the continuously variable transaxle and determines the output shaft (secondary pulley) speed in order to control the gear ratio.
The transmission revolution sensor (NOUT) detects the continuously variable transaxle output shaft (secondary pulley) speed and sends a signal to the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0720 | Output Speed Sensor Circuit | Diagnosis Condition A transmission revolution sensor (NOUT) signal malfunction is not detected. Malfunction Status The transmission revolution sensor (NOUT) output voltage is less than 0.1 V, or higher than 1.9 V. Malfunction Time 2 seconds Other 1-trip detection logic | Wire harness or connector Transmission revolution sensor (NOUT) ECM | Comes on | DTC stored |
| P0722 | Output Speed Sensor Circuit No Signal | Diagnosis Condition The vehicle is driven with the shift lever in D, the output shaft speed is 300 RPM or more, and no malfunctions are detected in the park/neutral position switch. Malfunction Status The speed indicated by the transmission revolution sensor (NOUT) is less than 300 RPM. Malfunction Time 2 seconds Other 1-trip detection logic | Wire harness or connector Transmission revolution sensor (NOUT) ECM | Comes on | DTC stored |
The ECM receives a signal from the revolution sensor (transmission revolution sensor (NOUT)) installed in the continuously variable transaxle and determines the output shaft (secondary pulley) speed in order to control the gear ratio.
If the ECM detects no signal from the revolution sensor (transmission revolution sensor (NOUT)) even while the vehicle is moving, it will determine that in the revolution sensor (transmission revolution sensor (NOUT)) is malfunctioning. The ECM will illuminate the MIL and store a DTC.
The ECM receives a signal from the revolution sensor (transmission revolution sensor (NT)) installed in the continuously variable transaxle to control the lock-up engagement pressure and forward and reverse clutch pressure.
The transmission revolution sensor (NT) detects the continuously variable transaxle input shaft speed and sends a signal to the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0715 | Input/Turbine Speed Sensor "A" Circuit | Diagnosis Condition A transmission revolution sensor (NT) signal malfunction is not detected. Malfunction Status The transmission revolution sensor (NT) output voltage is less than 0.1 V, or higher than 1.9 V. Malfunction Time 2 seconds Other 1-trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Transmission revolution sensor (NT)) ECM | Comes on | DTC stored |
| P0717 | Input/Turbine Speed Sensor "A" Circuit No Signal | Diagnosis Condition The vehicle is driven with the shift lever in D, the output shaft speed is 300 RPM or more, and no error is detected in the park/neutral position switch assembly. Malfunction Status The speed indicated by the transmission revolution sensor (NT) is less than 300 RPM. Malfunction Time 2 seconds Other 1-trip detection logic | Wire harness or connector Continuously variable transaxle assembly (Transmission revolution sensor (NT)) ECM | Comes on | DTC stored |
The revolution sensor (transmission revolution sensor (NT)) detects the transaxle input shaft speed. The ECM determines the necessary gear ratio based on a comparison of the transmission revolution sensor (NT) (input shaft speed) with the transmission revolution sensor (NOUT) (output shaft speed).
When the output shaft speed is higher than the expected value and the input shaft speed is less than 300 RPM while driving with the shift lever in D, the ECM will determine that the revolution sensor (transmission revolution sensor (NT)) is malfunctioning. The ECM will illuminate the MIL and store a DTC.
The CVT fluid temperature sensor converts the fluid temperature into a resistance value which is detected by the ECM.
The sensor resistance changes with the CVT fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies voltage to the temperature sensor through ECM terminal THO1 and calculates the fluid temperature based on the voltage signal.
HINT
The CVT fluid temperature is likely to increase under conditions such as towing, climbing hills and in traffic.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0712 | Transmission Fluid Temperature Sensor "A" Circuit Low Input | Diagnosis Condition Always Malfunction Status Short in CVT fluid temperature sensor circuit Malfunction Time 0.5 seconds Other 1 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (CVT fluid temperature sensor) ECM | Comes on | DTC stored |
| P0713 | Transmission Fluid Temperature Sensor "A" Circuit High Input | Diagnosis Condition 10 seconds or more after starting engine (Engine coolant temperature and intake air temperature at engine start are higher than -29.375°C (-20.875°F)) Malfunction Status Open in CVT fluid temperature sensor circuit Malfunction Time 0.5 seconds Other 1-trip detection logic Diagnosis Condition 10 minutes or more after starting engine (Engine coolant temperature and intake air temperature at engine start are at -29.375°C (-20.875°F) or lower) Malfunction Status Open in CVT fluid temperature sensor circuit Malfunction Time 0.5 seconds Other 1 trip detection logic | Wire harness or connector Continuously variable transaxle assembly (CVT fluid temperature sensor) ECM | Comes on | DTC stored |
The CVT fluid temperature sensor converts the CVT fluid temperature to an electrical resistance value. Based on the resistance, the ECM determines the CVT fluid temperature and detects an open or short circuit in the CVT fluid temperature circuit. If the resistance value of the CVT fluid temperature is less than 79 ohms*1 or more than 156 kohms*2, the ECM interprets this as a fault in the CVT fluid sensor or wiring. The ECM illuminates the MIL and stores a DTC.
*1: 150°C (302°F) or more is indicated regardless of the actual CVT fluid temperature.
*2: -40°C (-40°F) is indicated regardless of the actual CVT fluid temperature.
HINT
The CVT fluid temperature can be checked on the Techstream display.
After moving the shift lever to M, it is possible to change the shift range between M1 and M7 using the transmission control switch. Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" lowers the shift range by one.
Scheme 229
When the shift lever is in M, the shift range can be changed using the shift paddle switches. It is also possible to select the shift range when the vehicle is being driven with the shift lever in D by operating the shift paddle switches.
Scheme 230
Scheme 231
Scheme 232
- READ VALUE USING TECHSTREAM (SPORTS SHIFT UP SWITCH AND SPORTS SHIFT DOWN SWITCH) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary. In accordance with the display on the Techstream, read the Data List. Powertrain > Engine and ECT > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Sports Shift Up SW Sport shift up switch status OFF or ON ON: Shift lever held in "+" or "+" shift paddle switch pulled OFF: Shift lever not held in "+" or "+" shift paddle switch released - Sports Shift Down SW Sport shift down switch status OFF or ON ON: Shift lever held in "-" or "-" shift paddle switch pulled OFF: Shift lever not held in "-" or "-" shift paddle switch released - Powertrain > Engine and ECT > Data List Tester Display Sports Shift Up SW Sports Shift Down SW Result Result Proceed to Data display is within Normal Condition range A Data display is not within Normal Condition range B Result: 1 A CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS [08/2013 - ]»(ref-635452-S03322552482014070300000) Result: 2 B See step 2
- INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH) Disconnect the A40 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A40-59 (SFTU) - Body ground "+" continuously pulled Below 3 ohms A40-59 (SFTU) - Body ground Released 10 kohms or higher A40-43 (SFTD) - Body ground "-" continuously pulled Below 3 ohms A40-43 (SFTD) - Body ground Released 10 kohms or higher Connect the A40 ECM connector. Result Proceed to OK NG Result: 1 OK GO TO TRANSMISSION CONTROL SWITCH CIRCUIT. Refer to «Transmission Control Switch Circuit [08/2013 - ]»(ref-635606-S22259043592014070300000) Result: 2 NG See step 3
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND) Disconnect the negative (-) terminal cable from the battery. Wait for at least 90 seconds. Remove the steering wheel assembly. Remove the steering column cover. Disconnect the E8 spiral cable with sensor sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E8-2 (ECC) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND) Result: 1 OK See step 4
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - ECM) Disconnect the A40 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A40-43 (SFTD) - E8-7 (SDN) Always Below 1 ohms A40-43 (SFTD) or E8-7 (SDN) - Body ground Always 10 kohms or higher A40-59 (SFTU) - E8-14 (SUP) Always Below 1 ohms A40-59 (SFTU) or E8-14 (SUP) - Body ground Always 10 kohms or higher Connect the A40 ECM connector. Connect the E8 spiral cable with sensor sub-assembly connector. Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - ECM) Result: 1 OK See step 5
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - SHIFT PADDLE SWITCH) Disconnect the z5 steering pad switch connector from the spiral cable with sensor sub-assembly. *a Front view of wire harness connector (to Spiral Cable with Sensor Sub-assembly) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z5-6 (SUP) - z5-7 (ECC) "+" continuously pulled Below 3 ohms z5-6 (SUP) - z5-7 (ECC) Released 10 kohms or higher z5-12 (SDN) - z5-7 (ECC) "-" continuously pulled Below 3 ohms z5-12 (SDN) - z5-7 (ECC) Released 10 kohms or higher Result Proceed to OK NG Result: 2 NG See step 9 Result: 1 OK See step 6
- INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Disconnect the z5 and E8 connectors from the spiral cable with sensor sub-assembly. *a Component without harness connected (Spiral Cable with Sensor Sub-assembly) *b Steering Pad Switch Side *c Vehicle Side - - Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z5-7 (ECC) - E8-2 (ECC) Always Below 3 ohms z5-6 (SUP) - E8-14 (SUP) Always Below 3 ohms z5-12 (SDN) - E8-7 (SDN) Always Below 3 ohms z5-7 (ECC) or E8-2 (ECC) - Body ground and other terminals Always 10 kohms or higher z5-6 (SUP) or E8-14 (SUP) - Body ground and other terminals Always 10 kohms or higher z5-12 (SDN) or E8-7 (SDN) - Body ground and other terminals Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY. Refer to «COMPONENTS [08/2013 - 04/2014]»(ref-635430-S39248857042014070300000) Refer to «COMPONENTS [04/2014 - ]»(ref-635430-S34339712952014070300000) Result: 1 OK See step 7
- REPLACE ECM Replace the ECM. Refer to «COMPONENTS [08/2013 - ]»(ref-635621-S37339243522014070300000) Result Proceed to NEXT Result: 1 NEXT See step 8
- PERFORM INITIALIZATION NOTE: Performing Reset Memory will clear the learned value of the yaw rate and acceleration sensor (deceleration sensor zero point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform Reset Memory, yaw rate and acceleration sensor zero point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table: Replaced Part Continuously variable transaxle assembly ECM Oil pressure sensor Airbag sensor assembly (Yaw rate and acceleration sensor) After performing Reset Memory, always perform yaw rate and acceleration sensor (deceleration sensor zero point) calibration first, and then CVT oil pressure calibration. Always perform calibration with the vehicle on level ground. Do not shake or vibrate the vehicle during calibration. Using the Techstream, perform Reset Memory, deceleration sensor zero point calibration and CVT oil pressure calibration. Refer to «INITIALIZATION [08/2013 - ]»(ref-635452-S12546523352014070300000) Check for DTCs again. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635452-S09179021232014070300000) Result Proceed to NEXT Result: 1 NEXT END
- INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH) Disconnect the C and B connectors from the shift paddle switch LH and RH. *a Component without harness connected (Shift Paddle Switch LH) *b Component without harness connected (Shift Paddle Switch RH) Measure the resistance according to the value(s) in the table below. Standard Resistance (Shift Paddle Switch LH) Tester Connection Condition Specified Condition C-3 (ECC) - C-2 (SFTD) "-" continuously pulled Below 3 ohms C-3 (ECC) - C-2 (SFTD) Released 10 kohms or higher C-4 (ECC1) - C-2 (SFTD) "-" continuously pulled Below 3 ohms C-4 (ECC1) - C-2 (SFTD) Released 10 kohms or higher Standard Resistance (Shift Paddle Switch RH) Tester Connection Condition Specified Condition B-3 (SFTU) - B-2 (ECC1) "+" continuously pulled Below 3 ohms B-3 (SFTU) - B-2 (ECC1) Released 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH). Refer to «COMPONENTS [08/2013 - ]»(ref-635611-S22647595842014070300000) Result: 1 OK See step 10
- INSPECT NO. 1 SWITCH WIRE Connect the C and B shift paddle switch LH and RH connectors. *a Front view of wire harness connector (to Steering Pad Switch Connector) Disconnect the A No. 1 switch wire connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A-2 (SFTU) - A-7 (ECC) "+" continuously pulled Below 3 ohms A-2 (SFTU) - A-7 (ECC) Released 10 kohms or higher A-3 (SFTD) - A-7 (ECC) "-" continuously pulled Below 3 ohms A-3 (SFTD) - A-7 (ECC) Released 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 SWITCH WIRE - SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY) Result: 2 NG REPLACE NO. 1 SWITCH WIRE. Refer to «COMPONENTS [08/2013 - ]»(ref-635611-S22647595842014070300000)
The ECM memory contains the programs for the normal and sport shift patterns.
By following the programs corresponding to the signals from the pattern select switch assembly, the park/neutral position switch and various other sensors, the ECM switches the shift control solenoid valves on and off, and controls the transaxle gear ratio.
