DESCRIPTION
When an IGN signal, P switch signal, and STP signal are input into the main body ECU (network gateway ECU), a signal is output to the shift lock control unit assembly.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| B1016 | Ignition switch is turned to ON Shift lock circuit open, short to B+, or short to ground For 3 seconds or more 1-trip detection logic | Shift lock control unit assembly Wire harness or connector Main body ECU (Network Gateway ECU) |
Scheme 397
This compares values calculated by the TCM with the data stored within the TCM when the ignition switch is turned to ON, and if these do not match 2 times in series, then prohibits learning. If this continues further, power is cut to all solenoids (fixed to 4th).
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0601 | Ignition switch is turned to ON TCM internal malfunction - 1-trip detection logic | TCM |
MONITOR DESCRIPTION
The TCM monitors its internal operation. If the internal operation is malfunctioning, the TCM illuminates the MIL and sets a DTC.
When the ignition switch is turned from off to ON, the TCM calculates the integrated values within the TCM, and if these do not match the values stored within the TCM, the DTC is stored.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P062F | Ignition switch is turned to ON TCM internal error - 1-trip detection logic | TCM |
The TCM monitors its internal operation. If the internal operation is malfunctioning, the TCM illuminates the MIL and sets a DTC.
A signal from the park/neutral position switch assembly input into the TCM detects the shift position. The engine can only be started when the shift lever is in P or N.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0707 | The transmission revolution sensor (SP2) is normal, not learning control prohibited status, and the vehicle speed is 30 km/h or more Not learning control prohibited status All contacts for shift position P, R, N, and D are off Continues for 30 sec. 2-trip detection logic | Open or short in park/neutral position switch assembly circuit Park/neutral position switch assembly TCM |
| P0708 | Not learning control prohibited status 2 or more shift positions are detected at the same time Continues for 10 sec. 1-trip detection logic | Open or short in park/neutral position switch assembly circuit Park/neutral position switch assembly TCM |
These DTCs indicate a problem with the park/neutral position switch assembly and the wire harness in the park/neutral position switch assembly circuit.
The park/neutral position switch assembly detects the shift lever position and sends a signal to the TCM.
For security, the park/neutral position switch assembly detects the shift lever position so that engine can be started only when the shift lever is in the P or N position.
The park/neutral position switch assembly sends a signal to the TCM according to the shift position (P, R, N, D, or M). The TCM determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The TCM will turn on the MIL and store the DTC.
When an open or short circuit occurs, the contact points for all shift positions are set to OFF.
The oil temperature sensor within the valve body detects the oil temperature within the transmission hydraulic control circuit, and inputs into the TCM a signal corresponding to the oil temperature.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0711 | Detects that the park/neutral position switch assembly is normal, the shift position sensor is in D, the ATF temperature with ignition switch ON is less than 20°C (68°F), the present ATF temperature is less than 20°C (68°F), and the vehicle speed is 40 km/h or more If any of the following conditions are met: While diagnostic conditions are satisfied, the variation in oil temperature sensor input voltage is 0.05V or less after the ignition switch is turned to on While diagnostic conditions are satisfied, the variation in oil temperature sensor input voltage is 0.05V or less Continues for 600 sec. 2-trip detection logic | Transmission wire (ATF temperature sensor) Harness and connector |
This DTC indicates that there is a problem with output from the automatic transmission fluid (ATF) temperature sensor and that the sensor itself is defective. The ATF temperature sensor converts the ATF temperature to an electrical resistance value. Based on the resistance, the TCM determines the ATF temperature and detects an opens or shorts in the ATF temperature circuit or a fault of the ATF temperature sensor.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature is below 20°C (68°F) after running the vehicle for a certain period, the TCM interprets this as a fault, and turns on the MIL.
The oil temperature sensor within the valve body detects the oil temperature within the transmission hydraulic control circuit, and inputs into the TCM a signal corresponding to the oil temperature.
Scheme 398
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0712 | Not learning control prohibited status The oil temperature sensor input voltage is 0.14 V or less Detects a malfunction that continues for 10 seconds 6 times consecutively 1-trip detection logic | Transmission wire (ATF temperature sensor) Harness and connector TCM |
| P0713 | Park/neutral position switch assembly is normal, and shift lever is in D or R for 1 min. or more Not learning control prohibited status The oil temperature sensor input voltage is 4.88 V or more Detects a malfunction that continues for 1 second 12 times consecutively 1-trip detection logic | Transmission wire (ATF temperature sensor) Harness and connector TCM |
These DTCs indicate an open or short in the automatic transmission fluid (ATF) temperature sensor circuit. The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resistance value. Based on the resistance, the TCM determines the ATF temperature, and the TCM detects an open or short in the ATF temperature circuit. If the TCM input voltage of the ATF temperature sensor is less than 0.142 V or more than 4.878 V, the TCM interprets this as a fault in the ATF sensor or wiring. The TCM will turn on the MIL and store the DTC.
The transmission revolution sensor (NT) inputs signal into the TCM as a signal of the input axis revolutions.
The TCM carries out shift timing control based upon signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2).
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0717 | The shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (SP2) and shift position sensor are normal. While the vehicle is driven with shift lever in D, when the transmission revolution sensor (NT) revolutions calculated from the shift solenoid valve SP2 are 550 RPM or more. (2.5 seconds or more have elapsed after moving the shift lever to D. However, if there is a malfunction with the oil temperature sensor, or the oil temperature is 20°C (68°F) or less, then 10 seconds or more after moving the shift lever to D) While the shift solenoid valve SP2 outputs 12 pulses, the transmission revolution sensor (NT) does not detect even 1 pulse. Detected 500 times consecutively. 1-trip detection logic | Transmission revolution sensor (NT) TCM Harness and connector |
This DTC indicates that pulse is not output from the transmission revolution sensor (NT) or is output only little. The transmission revolution sensor (NT) terminal of the TCM detects the revolving signal from transmission revolution sensor (NT) (input RPM). The TCM outputs a gearshift signal comparing the transmission revolution sensor (NT) with the transmission revolution sensor (SP2).
While the vehicle is operating in the shift position of D, the output shaft revolution is 550rpm or more * , the TCM detects the trouble, illuminates the MIL and stores the DTC.
*: The engine speed is 400 RPM or more.
The transmission revolution sensor (SP2) inputs signal into the TCM as a signal of the output axis revolutions.
The TCM carries out shift timing control based upon signals from the transmission revolution sensor (SP2) and the transmission revolution sensor (NT).
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0722 | The shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT) and shift position sensor are normal With the shift lever is in D, driving in 1st gear 6 km/h (4 mph) or more, in 2nd gear 9 km/h (6 mph) or more, in 3rd gear 13 km/h (9 mph) or more, in 4th gear 18 km/h (12 mph) or more, in 5th gear 25 km/h (16 mph) or more, and in 6th gear, 30 km/h (19 mph) or more. (2.5 seconds or more have elapsed after moving the shift lever to D. However, if there is a malfunction with the oil temperature sensor, or the oil temperature is 20°C (68°F) or less, then 10 seconds or more after moving the shift lever to D) While the transmission revolution sensor (NT) outputs 12 pulses, the transmission revolution sensor (SP2) does not detect even 1 pulse. Detected 500 times consecutively. 1-trip detection logic | Open or short in transmission revolution sensor (SP2) circuit Transmission revolution sensor (SP2) TCM Harness and connector |
This DTC indicates that pulse is not output from the transmission revolution sensor (NT) or is output only little. The transmission revolution sensor (NT) terminal of the TCM detects the revolving signal from transmission revolution sensor (NT). The TCM outputs a gearshift signal comparing the transmission revolution sensor (NT) with the transmission revolution sensor (SP2).
While the vehicle is operating in the shift position of D, the output shaft revolution is 300 RPM or more * , the TCM detects the trouble, illuminates the MIL and stores the DTC.
*: The engine speed is 400 RPM or more.
The TCM uses signals from the transmission revolution sensor (SP2) and transmission revolution sensor (NT) to detect the actual gear position (1st, 2nd, 3rd, 4th, 5th or 6th gear). Then the TCM compares the actual gear with the shift schedule in the TCM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0729 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) If any of the following conditions are met: When the TCM commands shifting to 5th, the actual gear position is also switched to 5th. When the TCM commands 6th gear, the actual position is switched to 4th. - 1-trip detection logic | Transmission valve body assembly |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: TCM command gearshift 1st 2nd 3rd 4th 5th 6th Actual gear position under malfunction ↑ ↑ ↑ ↑ ↑ 4th
- Gear position during fail-safe operation: If any malfunction is detected, the TCM changes into the fail-safe mode to shift into the gear positions as shown in the table below. Gear position under normal conditions 1st 2nd 3rd 4th 5th 6th Actual gear position under fail-safe mode ↑ ↑ ↑ 4th 5th 5th
The TCM commands gear shifts by turning the shift solenoid valves "ON/OFF" and switching oil pressure to the valves in the valve body.
The DTC indicates that the sequence valve is locked in the direction the spring stretches and that shifting to the 6th gear is impossible.
The TCM carries out detection of the gear position based upon signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Subsequently, if the gear position as detected by the TCM is different to the commanded gear position, then a related solenoid valve, valve body, or automatic transmission mechanical problem is detected.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0751 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 5th, the actual gear position is also switched to 5th. When the TCM commands shifting to 6th gear, the engine overruns (in neutral) - 2-trip detection logic | Shift solenoid valve S1 Transmission valve body assembly Automatic transmission assembly |
| P0752 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: - When the TCM commands shifting to 1st gear, the actual gear position is shifted to 2nd. - When the TCM commands shifting to 5th gear, the actual gear position is also shifted to 5th - 2-trip detection logic | Shift solenoid valve S1 Transmission valve body assembly Automatic transmission assembly |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: TCM command gearshift 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under S1 stuck ON malfunction 2nd 2nd ↑ ↑ ↑ ↑ *2: Actual gear position under S1 stuck OFF malfunction 1st 2nd ↑ ↑ ↑ N* N*: Neutral
- Gear position during fail-safe operation: If any malfunction is detected, the TCM changes into the fail-safe mode to shift into the gear positions as shown in the table below. Gear position under normal conditions 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under fail safe mode when S1 stuck ON malfunction 2nd 2nd ↑ ↑ ↑ ↑ *2: Actual gear position under fail safe mode when S1 stuck OFF malfunction 1st *3 2nd *3 ↑ 3rd 3rd 3rd *3: Under engine braking downshifting to 1st or 2nd gear is prohibited.
This DTC indicates "stuck ON malfunction" or "stuck OFF malfunction" of the shift solenoid valve S1.
The TCM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the TCM and the actual gear position are not the same, the TCM illuminates the MIL and stores the DTC.
The TCM carries out detection of the gear position based upon signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Subsequently, if the gear position as detected by the TCM is different to the commanded gear position, then a related solenoid valve, valve body, or automatic transmission mechanical problem is detected.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0756 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 1st, the actual gear position is shifted to 3rd. When the TCM commands shifting to 6th, the actual gear position is shifted to 5th. - 2-trip detection logic | Shift solenoid valve S2 Transmission valve body assembly Automatic transmission assembly |
| P0757 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 5th, the actual gear position is shifted to 6th. When the TCM commands shifting to 6th, the actual gear position is shifted to 6th. - 2-trip detection logic | Shift solenoid valve S2 Transmission valve body assembly Automatic transmission assembly |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: TCM command gearshift 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under S2 stuck ON malfunction ↑ ↑ 2nd ↑ 6th ↑ *2: Actual gear position under S2 stuck OFF malfunction 3rd 3rd 3rd ↑ 5th 5th
This DTC indicates "stuck ON malfunction" or "stuck OFF malfunction" of the shift solenoid valve S2.
The TCM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the TCM and the actual gear position are not the same, the TCM illuminates the MIL and stores the DTC.
The TCM carries out detection of the gear position based upon signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Subsequently, if the gear position as detected by the TCM is different to the commanded gear position, then a related solenoid valve, valve body, or automatic transmission mechanical problem is detected.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0761 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) If any of the following conditions are met: The following conditions are all met: When the TCM commands shifting to 1st, the actual gear position is also switched to 3rd. When the TCM commands shifting to 6th, the actual gear position is also switched to 6th. The following conditions are all met: When the TCM commands shifting to 2nd, the actual gear position is shifted to 6th. When the TCM commands shifting to 3rd, the actual gear position is shifted to 4th. - 2-trip detection logic | Shift solenoid valve S3 Transmission valve body assembly Automatic transmission assembly |
| P0762 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 4th, the actual gear position is also switched to 3rd. When the TCM commands shifting to 5th, the actual gear position is shifted to N. - 2-trip detection logic | Shift solenoid valve S3 Transmission valve body assembly Automatic transmission assembly |
| P0781 | While driving with the shift lever in D, the ATF temperature 20°C (68°F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 4th, the actual gear position is also switched to 3rd. When the TCM commands shifting to 5th, the actual gear position is shifted to N. - 2-trip detection logic | Shift solenoid valve S3 Transmission valve body assembly Automatic transmission assembly |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: TCM command gearshift 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under S3 stuck ON malfunction ↑ ↑ ↑ 3rd N* N* *2: Actual gear position under S3 stuck OFF malfunction 3rd 6th 4th 4th 5th 6th N*: Neutral
- Gear position during fail-safe operation: If any malfunction is detected, the TCM changes into the fail-safe mode to shift into the gear positions as shown in the table below. Gear position under normal conditions 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under fail safe mode when S3 stuck ON malfunction ↑ ↑ ↑ 3rd 3rd 3rd *2: Actual gear position under fail safe mode when S3 stuck OFF malfunction 3rd 6th 4th 4th 5th 6th
This DTC indicates "stuck ON malfunction" or "stuck OFF malfunction" of the shift solenoid valve S3.
The TCM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the TCM and the actual gear position are not same, the TCM illuminates the MIL and stores the DTC.
The TCM carries out detection of the gear position based upon signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). Subsequently, if the gear position as detected by the TCM is different to the commanded gear position, then a related solenoid valve, valve body, or automatic transmission mechanical problem is detected.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0766 | While driving with the shift lever in D, the ATF temperature 20°C (68 °F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 5th, the actual gear position is switched to 4th. When the TCM commands shifting to 6th, the actual gear position is shifted to 4th. - 2-trip detection logic | Shift solenoid valve S4 Transmission valve body assembly Automatic transmission assembly |
| P0767 | While driving with the shift lever in D, the ATF temperature 20°C (68 °F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 1st, the actual gear position is switched to 2nd. When the TCM commands shifting to 5th, the actual gear position is also shifted to 5th. - 2-trip detection logic | Shift solenoid valve S4 Transmission valve body assembly Automatic transmission assembly |
| P0776 | While driving with the shift lever in D, the ATF temperature 20°C (68 °F) or more, and coolant temperature 40°C (104°F) or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: When the TCM commands shifting to 5th, the actual gear position is switched to 4th. When the TCM commands shifting to 6th, the actual gear position is shifted to 4th. - 2-trip detection logic | Shift solenoid valve S4 Transmission valve body assembly Automatic transmission assembly |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: TCM command gearshift 1st 2nd 3rd 4th 5th 6th *: Actual gear position under malfunction 1st 2nd 3rd 4th 4th 4th
- Gear positions in the event of a shift solenoid valve S4 ON stuck with M position: TCM command gearshift 1st 2nd 3rd 4th 5th 6th *: Actual gear position under malfunction 2nd 2nd 3rd 4th 5th 6th
- Gear position during fail-safe operation: If any malfunction is detected, the TCM changes into the fail-safe mode to shift into the gear positions as shown in the table below. Gear position under normal conditions 1st 2nd 3rd 4th 5th 6th *: Actual gear position under fail-safe mode 1st 2nd 3rd 3rd 3rd 3rd
This DTC indicates "stuck OFF malfunction" of the shift solenoid valve S4, "stuck ON malfunction" of the shift solenoid valve SL2, or brake control valve malfunction. The TCM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the TCM and the actual gear position are not same, the TCM illuminates the MIL and stores the DTC.
TCM detects a reduction in power supply voltage, and depending on status, implements the following fail-safe.
- Learning control prohibition (when detection conditions 1 or 2 are met)
- Slip control, lock-up control, manual mode, shift paddle operation prohibition, torque up prohibition, and prohibition on shifting to 5th or 6th. If this continues further, power is cut to all solenoids (fixed to 4th).
| DTC Code | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0882 | The engine speed and transmission revolution sensor (NT) are 400 RPM or more, and the CAN communication and input speed NT are normal Ignition voltage is 9.0 V or less Continues for 20 sec. 1-trip detection logic | IG circuit Harness and connector TCM |
Scheme 399
The shift solenoid valve SLT is controlled by the duty ratio as determined in advance by the transmission control computer, based upon signals from the accelerator position sensor, transmission revolution sensor (NT) and transmission revolution sensor (SP2). In this way, the line pressure is adjusted to match the throttle valve opening angle and engine output. The TCM uses the revolution signals from the transmission revolution sensor (NT) and transmission revolution sensor (SP2) to detect clutch and other slipping.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0894 | While driving with the shift lever in D, the ATF temperature 10°C or more, and coolant temperature 40°C or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The C1 clutch total heating power is the predetermined value or more. - 2-trip detection logic | Shift solenoid valve S1 Shift solenoid valve S2 Shift solenoid valve S3 Shift solenoid valve S4 Transmission valve body assembly Torque converter assembly Automatic transmission assembly |
| P2714 | While driving with the shift lever in D, the ATF temperature 10°C or more, and coolant temperature 40°C or more. (However, abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature sensor, air flow sensor, electronically control throttle, and accelerator pedal sensor are not detected) The following conditions are met: The C1 clutch total heating power is the predetermined value or more. The C2 clutch total heating power is the predetermined value or more. - 2-trip detection logic | Shift solenoid valve S1 Shift solenoid valve S2 Shift solenoid valve S3 Shift solenoid valve S4 Transmission valve body assembly Torque converter assembly Automatic transmission assembly |
The TCM calculates the amount of heat absorbed by the friction material based on the difference in revolution (clutch slippage) between the turbine and output shaft. The TCM illuminates the MIL and outputs this DTC when the amount of heat absorption exceeds the specified value.
Note. If you continue driving under these conditions, the clutch will burn out and the vehicle will no longer be drivable.
Based upon a signal from the TCM, the combination of shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0961 | Not learning control prohibited status Not open or short in the shift solenoid valve SL1 circuit The difference between the shift solenoid valve SL1 operational feedback current is 12 A or more in total. Detects "2.Malfunction Status" 2 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P0962 | Not learning control prohibited status 1 second or more has elapsed after turning shift solenoid valve SL1 off. The shift solenoid valve SL1 operational feedback voltage is 0.018 V or less. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P0963 | Not learning control prohibited status 1 second or more has elapsed after turning shift solenoid valve SL1 on. The shift solenoid valve SL1 operational feedback voltage is 0.257 V or more. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
Reference (Using an oscilloscope)
Check the waveform between the terminals SL1+ and SL1- of the TCM connector
Scheme 400
Standard
Refer to the illustration.
| Terminal | SL1+ - SL1 |
|---|---|
| Tool setting | 5 V/DIV., 1 ms./DIV. |
| Vehicle condition | 5th or 6th gear |
This DTC indicates an open or short in the shift solenoid valve SL1 circuit. The TCM commands gearshift by turning the shift solenoid valves "ON/OFF". When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
Based upon a signal from the TCM, the combination of shift solenoid valves (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function, if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0965 | Not learning control prohibited status The difference between the shift solenoid valve SL2 operational specified current and operational feedback current is 12 A or more in total. Detects "2.Malfunction Status" 2 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P0966 | Not learning control prohibited status 1 second or more has elapsed after turning shift solenoid valve SL2 off The shift solenoid valve SL1 operational feedback voltage is 0.018 V or less. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P0967 | Not learning control prohibited status 1 second or more has elapsed after turning shift solenoid valve SL2 on The shift solenoid valve SL1 operational feedback voltage is 0.257 V or more. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
Reference (Using an oscilloscope)
Check the waveform between the terminals SL2+ and SL2- of the TCM connector
Standard
Refer to the illustration.
| Terminal | SL2+ - SL2 |
|---|---|
| Tool setting | 5 V/DIV., 1 ms./DIV. |
| Vehicle condition | Engine idle speed |
This DTC indicates an open or short in the shift solenoid valve SL2 circuit. The TCM commands gear shifts by turning the shift solenoid valves "ON/OFF". When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
Based upon a signal from the TCM, the combination of shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0973 | Not learning control prohibited status During shift solenoid valve S1 on signal is output, the TCM S1 output monitor value is "off". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S1 Transmission wire Harness and connector TCM |
| P0974 | Not learning control prohibited status During shift solenoid valve S1 off signal is output, the TCM S1 output monitor value is "on". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S1 Transmission wire Harness and connector TCM |
These DTCs indicate an open or short in the shift solenoid valve S1 circuit. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
Based upon a signal from the TCM, the combination of shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0976 | Not learning control prohibited status During shift solenoid valve S2 on signal is output, the TCM's S2 output monitor value is "off". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S2 Transmission wire Harness and connector TCM |
| P0977 | Not learning control prohibited status During shift solenoid valve S2 off signal is output, the TCM's S2 output monitor value is "on". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S2 Transmission wire Harness and connector TCM |
These DTCs indicate an open or short in the shift solenoid valve S2 circuit. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
Based upon a signal from the TCM, the combination of shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0979 | Not learning control prohibited status During shift solenoid valve S3 on signal is output, the TCM's S3 output monitor value is "off". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S3 Transmission wire Harness and connector TCM |
| P0980 | Not learning control prohibited status During shift solenoid valve S3 off signal is output, the TCM's S3 output monitor value is "on". Continues for 500ms or more. 1-trip detection logic | Open in shift solenoid valve S3 circuit Shift solenoid valve S3 TCM |
These DTCs indicate an open or short in the shift solenoid valve S3 circuit. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
Based upon a signal from the TCM, the combination of shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0982 | Not learning control prohibited status During shift solenoid valve S4 on signal is output, the TCM's S4 output monitor value is "off". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S4 Transmission wire Harness and connector TCM |
| P0983 | Not learning control prohibited status During shift solenoid valve S4 off signal is output, the TCM's S4 output monitor value is "on". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve S4 Transmission wire Harness and connector TCM |
These DTCs indicate an open or short in the shift solenoid valve S4 circuit. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
Based upon a signal from the TCM, the combination of shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2) changes the gear position from 1st to 6th. As a fail-safe function if the solenoid valve system is open or shorted, the TCM cuts power to all solenoids, leaving just the mechanical hydraulic circuit, requiring manual shifting.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P0985 | Not learning control prohibited status During shift solenoid valve SR on signal is output, the TCM's SR output monitor value is "off". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve SR Transmission wire Harness and connector TCM |
| P0986 | Not learning control prohibited status During shift solenoid valve SR off signal is output, the TCM's SR output monitor value is "on". Continues for 500ms or more. 1-trip detection logic | Shift solenoid valve SR Transmission wire Harness and connector TCM |
These DTCs indicate an open or short in the shift solenoid valve SR circuit. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC.
This compares values calculated by the TCM with the data recorded after calculations when the ignition switch is turned to ON, and if these do not match, then the DTC is stored, and the power is cut to all solenoids (fixed to 4th).
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P160A | Ignition switch is turned to ON TCM internal malfunction. When the information recorded inside the TCM differs from that in the same trip while the ignition switch is ON. - 1-trip detection logic | TCM |
The TCM monitors its internal operation. If the internal operation is malfunctioning, the TCM illuminates the MIL and sets a DTC.
A signal from the manual mode switch assembly input into the TCM detects the M position.
| DTC Code | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P1817 | Shift position sensor is normal, and not in learning control prohibited status. The shift lever is in P, N, or R, and the M switch is on. Continues for 2 sec. 1-trip detection logic | Manual mode switch Harness and connector TCM |
Scheme 401
The shift solenoid valve SLT is controlled by the duty ratio as determined in advance by the transmission control computer, based upon signals from the accelerator position sensor, transmission revolution sensor (NT) and transmission revolution sensor (SP2). In this way, the line pressure is adjusted to match the throttle valve opening angle and engine output. The TCM uses the revolution signals from the transmission revolution sensor (NT) and transmission revolution sensor (SP2) to detect clutch and other slipping.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P2719 | Not learning control prohibited status The difference between the shift solenoid valve SLT operational specified current and operational feedback current is 12 A or more in total. Detects "2.Malfunction Status" 2 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P2720 | Not learning control prohibited status 1 second or more has elapsed after turning shift solenoid valve SLT off. The shift solenoid valve SLT operational feedback voltage is 0.018 V or less. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P2721 | Not learning control prohibited status 1 second or more has elapsed after turning shift solenoid valve SLT on. The shift solenoid valve SLT operational feedback voltage is 0.257 V or more. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
When an open or short in the shift solenoid valve SLT circuit is detected, the TCM interprets this as a fault. The TCM will turn on the MIL and store the DTC.
The shift solenoid valve SLU is controlled by the duty ratio as determined in advance by the TCM. In this way, it carries out lock-up and flex lock-up control.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P2757 | The following conditions are met: Not learning control prohibited status 4 seconds or more have elapsed after moving the shift lever to D. Coolant temperature is 40°C (104°F) or more. ATF temperature is 20°C (68 °F) or more. 4th or higher gears Abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SLT, SLU), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature, electronically control throttle and accelerator pedal sensor are not detected. The following conditions are met: The shift solenoid valve SLU hydraulic command value is more than the specified value for 3 seconds or more. The engine speed is 70 RPM or more faster than the turbine revolutions. 4th or higher gear The throttle valve opening angle is the specified angle or more. Vehicle speed is 22 km/h or more. All conditions in (b) have passed for 2 seconds or more. 2-trip detection logic | Transmission valve body assembly Torque converter assembly Automatic transmission assembly |
| P2758 | The following conditions are met: Not learning control prohibited status 4 seconds or more have elapsed after moving the shift lever to D. Coolant temperature is 40°C (104°F) or more. ATF temperature is 20°C (68 °F) or more. 4th or higher gears Abnormalities with the shift solenoid valve (S1, S2, S3, S4, SR, SLT, SLU), transmission revolution sensor (NT), transmission revolution sensor (SP2), park/neutral position switch assembly, CAN bus, ECM communication, coolant temperature, electronically control throttle and accelerator pedal sensor are not detected. The following conditions are met: The shift solenoid valve SLU hydraulic command value is less than the specified value for 3 seconds or more. The difference between the engine speed and the turbine speed is 35 RPM or less. 4th or higher gear The throttle valve opening angle is the specified angle or more. Vehicle speed is 22 km/h or more. All conditions in "2. Malfunction status" have passed for 2 seconds or more. 2-trip detection logic | Transmission valve body assembly Torque converter assembly Automatic transmission assembly |
Torque converter lock-up is controlled by the TCM based on the transmission revolution sensor (NT), transmission revolution sensor (SP2), engine RPM, engine load, engine temperature, vehicle speed, transmission temperature, and gear selection. The TCM determines the lock-up status of the torque converter by comparing the engine RPM (NE) to the input turbine RPM (NT). The TCM calculates the actual transmission gear by comparing input turbine RPM (NT) to output shaft RPM (SP2). When conditions are appropriate, the TCM requests "lock-up" by applying control voltage to the shift solenoid valve SLU. When the SLU is turned on, it applies pressure to the lock-up relay valve and locks the torque converter assembly.
If the TCM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not requested, the TCM interprets this as a fault in the shift solenoid valve SLU or lock-up system performance.
The TCM will turn on the MIL and store the DTC.
The shift solenoid valve SLU is controlled by the duty ratio as determined in advance by the TCM. In this way, it carries out lock-up and flex lock-up control.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| P2762 | Not learning control prohibited status. Not open or short in the shift solenoid valve SLU/DSU circuit. The difference between the shift solenoid valve SLU operational specified current and operational feedback current is 12 A or more in total. Detects "2.Malfunction Status" 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P2763 | Not learning control prohibited status Not malfunction with the shift solenoid valve SLU/DSU circuit performance. 1 second or more has elapsed after turning shift solenoid valve SLU off. The shift solenoid valve SLU operational feedback voltage is 0.018 V or less. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
| P2764 | Not learning control prohibited status Not malfunction with the shift solenoid valve SLU/DSU circuit performance. 1 second or more has elapsed after turning shift solenoid valve SLU on. The shift solenoid valve SLU operational feedback voltage is 0.257 V or more. Detects malfunction that continues for 100 ms or more 5 times consecutively. 1-trip detection logic | Transmission valve body assembly Transmission wire Harness and connector TCM |
When an open or short in a shift solenoid valve SLU circuit is detected, the TCM determines there is a malfunction. The TCM will turn on the MIL and store this DTC.
HINT
- Problems on the CAN bus (communication line) can be detected from the DLC3 connector (Except when the DLC3 branch line is open).
- By using the Techstream, it is possible to check CAN communication DTC.
- The DLC3 is connected to the CAN communication line, but the CAN communication is unable to detect problems on the DLC3 branch line.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| U0073 | Ignition voltage is 9 V or more, and this condition continues for 1 second or more. Data reception and transmission are not possible 500 ms 1-trip detection logic | CAN communication system |
| U0401 | CAN bus is normal. Reception of malfunction signal from the ECM. 50 times 1-trip detection logic | CAN communication system |
| U0416 | CAN bus is normal. Reception of malfunction signal from the skid control ECU (brake actuator assembly). 40 times 1-trip detection logic | CAN communication system |
| U0422 | CAN bus is normal. Reception of malfunction signal from the main body ECU (network gateway ECU). 40 times 1-trip detection logic | CAN communication system |
| U0423 | CAN bus is normal. Reception of malfunction signal from the combination meter assembly. 40 times 1-trip detection logic | CAN communication system |
The TCM receives and transmits signals from each ECU using CAN communication.
HINT
- Problems on the CAN bus (communication line) can be detected from the DLC3 connector (Except when the DLC3 branch line is open).
- By using the Techstream, it is possible to check CAN communication DTC.
- The DLC3 is connected to the CAN communication line, but the CAN communication is unable to detect problems on the DLC3 branch line.
| DTC No. | DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other | Trouble Area |
|---|---|---|
| U0100 | CAN bus is normal. Signal from the ECM is interrupted. 500 ms, 800 ms, 2000 ms (differs depending on ID) 1-trip detection logic | CAN communication system |
| U0122 | CAN bus is normal. Signal from the skid control ECU (brake actuator assembly) is interrupted. 800 ms 1-trip detection logic | CAN communication system |
| U0140 | CAN bus is normal. Signal from the main body ECU (network gateway ECU) is interrupted. 800 ms, 20000 ms (differs depending on ID) 1-trip detection logic | CAN communication system |
| U0155 | CAN bus is normal. Signal from combination meter assembly is interrupted. 2000 ms 1-trip detection logic | CAN communication system |
When the shift lever is in M, it is possible to change into any gear using the shift lever assembly sequential gate.
Scheme 402
When the shift lever is in M, it is possible to change into any gear using the steering assembly transmission shift switch assembly.
Additionally, when the vehicle is being driving with the shift lever in D, operating the steering assembly transmission shift switch assembly changes to selection of gears with the shift lever in D, enabling shifting to any gear.
Scheme 403
A signal from the pattern select switch assembly input into the TCM enables switching of the mode.
Scheme 404
HINT
(*) Pattern Select Switch Assembly (ECT SNOW Switch)
When the ECT SNOW switch is pushed, the switch contact is made and the ECT SNOW mode is selected.
To cancel the ECT SNOW mode, push the ECT SNOW switch once again.
The ECT SNOW mode is automatically cancelled out when the ignition switch is turned "off".
See also:
• REMOVAL [07/2013 - ]