DESCRIPTION
The amount of current flow to the solenoid is controlled by the ECM. During the lock-up operation, if the current increases, the lock-up hydraulic pressure increases.
Scheme 460
| 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) | Open or short is detected in shift solenoid valve SLU circuit for 1 second or more while driving (1-trip detection logic). | Open or short in shift solenoid valve SLU circuit Shift solenoid valve SLU ECM | Comes on | DTC stored |
MONITOR DESCRIPTION
When an open or short in a shift solenoid valve (SLU) circuit is detected, the ECM determines there is a malfunction. The ECM will turn on the MIL and store this DTC.
SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, air-flow meter, transmission revolution sensor (NT), transmission revolution sensor (SP2) and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.
The ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the ECM memory to detect mechanical problems of the shift solenoid valve SLU, valve body and torque converter assembly.
Scheme 461
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2757 | Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) | Lock-up does not occur when driving in the lock-up range (normal driving at 80 km/h [50 mph]), or lock-up remains ON in the lock-up OFF range. (2-trip detection logic) | Shift solenoid valve SLU remains open or closed Valve body is blocked Torque converter assembly Automatic transmission (clutch, brake or gear, etc.) Line pressure is too low | Comes on | DTC stored |
Torque converter assembly lock-up is controlled by the ECM 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 ECM determines the lock-up status of the torque converter assembly by comparing the engine revolution (NE) to the input turbine revolution (NT). The ECM calculates the actual transmission gear by comparing input turbine revolution (NT) to output shaft revolution (SP2). When conditions are appropriate, the ECM requests "lock-up" by applying control voltage to the shift solenoid SLU. When the SLU is turned on, it applies pressure to the lock-up relay valve and locks the torque converter assembly.
If the ECM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not requested, the ECM interprets this as a malfunction of in the shift solenoid valve SLU or lock-up system performance.
The ECM will illuminate the MIL and store this DTC.
Example
When any of the following is met, the system judges it as a malfunction.
- There is a difference in rotation between the input side (engine speed) and output side (input turbine speed) of the torque converter assembly when the ECM commands lock-up. (Engine speed is at least 70 rpm greater than input turbine speed.)
- There is no difference in rotation between the input side (engine speed) and output side (input turbine speed) of the torque converter assembly when the ECM commands lock-up off. (The difference between engine speed and input turbine speed is less than 20 rpm.)
Refer to DTC P0894.
Refer to DTC P0894: Transmission Component Slipping; DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2716 | Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) | Open or short is detected in shift solenoid valve SLT circuit for 1 second or more while driving (1-trip detection logic). | Open or short in shift solenoid valve SLT circuit Shift solenoid valve SLT ECM | Comes on | DTC stored |
When an open or short in the linear solenoid valve (SLT) circuit is detected, the ECM interprets this as a malfunction. The ECM will turn on the MIL and store the DTC.
Shifting from 1st to 6th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly. (In case of an open or short circuit, the ECM stops sending current to the circuit.) Fail safe function.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0985 | Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR) | ECM detects short in solenoid valve SR circuit 2 times when solenoid valve SR is operated (1-trip detection logic) | Short in shift solenoid valve SR circuit Shift solenoid valve SR ECM | Comes on | DTC stored |
| P0986 | Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR) | ECM detects open in solenoid valve SR circuit 2 times when solenoid valve SR is not operated (1-trip detection logic) | Open in shift solenoid valve SR circuit Shift solenoid valve SR ECM | Comes on | DTC stored |
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 ECM detects the problem and illuminates the MIL and stores the DTC. When the shift solenoid valve SR is on, if resistance is 8 ohms or less, the ECM determines there is a short in the shift solenoid valve SR circuit.
When the shift solenoid valve SR is off, if resistance is 100 kohms or more, the ECM determines there is an open in the shift solenoid valve SR circuit.
Shifting from 1st to 6th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly. (In case of an open or short circuit, the ECM stops sending current to the circuit.) Fail safe function.
Refer to FAIL-SAFE CHART [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0982 | Shift Solenoid "D" Control Circuit Low (Shift Solenoid Valve S4) | ECM detects short in solenoid valve S4 circuit 2 times when solenoid valve S4 is operated (1-trip detection logic) | Short in shift solenoid valve S4 circuit Shift solenoid valve S4 ECM | Comes on | DTC stored |
| P0983 | Shift Solenoid "D" Control Circuit High (Shift Solenoid Valve S4) | ECM detects open in solenoid valve S4 circuit 2 times when solenoid valve S4 is not operated (1-trip detection logic) | Open in shift solenoid valve S4 circuit Shift solenoid valve S4 ECM | Comes on | DTC stored |
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 ECM detects the problem and illuminates the MIL and stores the DTC. When the shift solenoid valve S4 is on, if resistance is 8 ohms or less, the ECM determines there is a short in the shift solenoid valve S4 circuit.
When the shift solenoid valve S4 is off, if resistance is 100 kohms or more, the ECM determines there is an open in the shift solenoid valve S4 circuit.
Refer to FAIL-SAFE CHART [04/2013 - ]
Shifting from 1st to 6th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly. (In case of an open or short circuit, the ECM stops sending current to the circuit.) Fail safe function.
Refer to FAIL-SAFE CHART [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0979 | Shift Solenoid "C" Control Circuit Low (Shift Solenoid Valve S3) | ECM detects short in solenoid valve S3 circuit 2 times when solenoid valve S3 is operated (1-trip detection logic) | Short in shift solenoid valve S3 circuit Shift solenoid valve S3 ECM | Comes on | DTC stored |
| P0980 | Shift Solenoid "C" Control Circuit High (Shift Solenoid Valve S3) | ECM detects open in solenoid valve S3 circuit 2 times when solenoid valve S3 is not operated (1-trip detection logic) | Open in shift solenoid valve S3 circuit Shift solenoid valve S3 ECM | Comes on | DTC stored |
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 ECM detects the problem and illuminates the MIL and stores the DTC. When the shift solenoid valve S3 is on, if resistance is 8 ohms or less, the ECM determines there is a short in the shift solenoid valve S3 circuit.
When the shift solenoid valve S3 is off, if resistance is 100 kohms or more, the ECM determines there is an open in the shift solenoid valve S3 circuit.
Refer to FAIL-SAFE CHART [04/2013 - ]
Shifting from 1st to 6th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly. (In case of an open or short circuit, the ECM stops sending current to the circuit.) Fail safe function.
Refer to FAIL-SAFE CHART [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0976 | Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2) | ECM detects short in solenoid valve S2 circuit 2 times when solenoid valve S2 is operated (1-trip detection logic) | Short in shift solenoid valve S2 circuit Shift solenoid valve S2 ECM | Comes on | DTC stored |
| P0977 | Shift Solenoid "B" Control Circuit High (Shift Solenoid Valve S2) | ECM detects open in solenoid valve S2 circuit 2 times when solenoid valve S2 is not operated (1-trip detection logic) | Open in shift solenoid valve S2 circuit Shift solenoid valve S2 ECM | Comes on | DTC stored |
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 ECM detects the problem and illuminates the MIL and stores the DTC. When the shift solenoid valve S2 is on, if resistance is 8 ohms or less, the ECM determines there is a short in the shift solenoid valve S2 circuit.
When the shift solenoid valve S2 is off, if resistance is 100 kohms or more, the ECM determines there is an open in the shift solenoid valve S2 circuit.
Refer to FAIL-SAFE CHART [04/2013 - ]
Shifting from 1st to 6th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly. (In case of an open or short circuit, the ECM stops sending current to the circuit.) Fail safe function.
Refer to FAIL-SAFE CHART [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0973 | Shift Solenoid "A" Control Circuit Low (Shift Solenoid Valve S1) | ECM detects short in solenoid valve S1 circuit 2 times when solenoid valve S1 is operated (1-trip detection logic) | Short in shift solenoid valve S1 circuit Shift solenoid valve S1 ECM | Comes on | DTC stored |
| P0974 | Shift Solenoid "A" Control Circuit High (Shift Solenoid Valve S1) | ECM detects open in solenoid valve S1 circuit 2 times when solenoid valve S1 is not operated (1-trip detection logic) | Open in shift solenoid valve S1 circuit Shift solenoid valve S1 ECM | Comes on | DTC stored |
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 ECM detects the problem and illuminates the MIL and stores the DTC. When the shift solenoid valve S1 is on, if resistance is 8 ohms or less, the ECM determines there is a short in the shift solenoid valve S1 circuit.
When the shift solenoid valve S1 is off, if resistance is 100 kohms or more, the ECM determines there is an open in the shift solenoid valve S1 circuit.
Refer to FAIL-SAFE CHART [04/2013 - ]
The ECM 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 ECM illuminates the MIL and outputs this DTC when the amount of heat absorption exceeds the specified value.
There are two reasons that make the revolution difference.
- When the shift solenoid valve SLT remains on, oil pressure goes down and clutch engagement force decreases.
- When the shift solenoid valve remains on or off, the gear position commanded by the ECM and the actual gear position are not the same.
Note. If you continue driving under these conditions, the clutch will burn out and the vehicle will no longer be drivable.
The 1-2 shift valve performs shifting to 1st gear and other gears.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0781 | 1-2 Shift (1-2 Shift Valve) | 1-2 shift valve malfunction: Shifting to 2nd and 4th gears is impossible. When the ECM directs the gearshift to change to 5th or 6th gear, the engine overruns (clutch slips). (2-trip detection logic) (a) and (b), or (a) and (c) (a) When the ECM directs the gearshift to change to 2nd gear, the actual gear is shifted to 1st. (b) When the ECM directs the gearshift to change to 4th gear, the actual gear is shifted to 3rd. (c) When the ECM directs the gearshift to change to 5th gear, the engine overruns (clutch slips). | Shift solenoid valve SLT remains open or closed Valve body is blocked up or stuck (1-2 shift valve) Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: ECM commanded gear 1st 2nd 3rd 4th 5th 6th Actual gear position under malfunction 1st 1st 3rd 3rd N* N* () *: Neutral
- Gear position during fail-safe operation: If any malfunction is detected, the ECM 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 (*1) 1st (*1) 3rd 3rd 3rd 3rd () *1: Under engine braking, downshifting to 1st or 2nd gear is prohibited.
This DTC indicates that the 1-2 shift valve in the valve body is locked in the direction the spring compresses.
The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF" and switching oil pressure to the valves in the valve body.
The ECM calculates the "actual" transmission gear by comparing the signals from the transmission revolution sensor (NT) and the transmission revolution sensor (SP2). The ECM can detect many mechanical problems in the shift solenoids, valve body, and the transmission clutches, brakes, and gears. If the ECM detects that the actual gear position and the commanded gear position are different, it will illuminate the MIL and store the DTC.
Shifting from 1st to 6th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly.
Refer to FAIL-SAFE CHART [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0778 | Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) | The ECM checks for an open or short in the shift solenoid valve SL2 circuit while driving and shifting gears. (1-trip detection logic) Output signal duty equals to 100%. (NOTE: SL2 output signal duty is less than 100% under normal condition.) | Open or short in shift solenoid valve SL2 circuit Shift solenoid valve SL2 ECM | Comes on | DTC stored |
This DTC indicates an open or short in the shift solenoid valve SL2 circuit. The ECM 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 ECM detects the problem and illuminates the MIL and stores the DTC. And the ECM performs the fail-safe function and turns the other shift solenoid valves in good condition "ON/OFF". (In case of an open or short circuit, the ECM stops sending current to the circuit.)
While driving and shifting gears, if the ECM detects an open or short in the shift solenoid valve SL2 circuit, the ECM determines there is a malfunction.
Refer to FAIL-SAFE CHART [04/2013 - ]
The ECM 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 ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0766 | Shift Solenoid "D" Performance (Shift Solenoid Valve S4) | S4 stuck OFF malfunction or brake control valve malfunction*: Shifting to 5th and 6th gears is impossible. The ECM determines there is a malfunction when the following conditions are both met.(2-trip detection logic) (a) When the ECM directs the gearshift to change to 5th gear, the actual gear is shifted to 4th. (b) When the ECM directs the gearshift to change to 6th gear, the actual gear is shifted to 4th. | Shift solenoid valve S4 remains closed Shift solenoid valve SLT remains open or closed Valve body is blocked (Brake control valve) Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
| P0776 | Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2) | SL2 stuck ON malfunction or brake control valve malfunction*: Shifting to 5th and 6th gears is impossible. The ECM determines there is a malfunction when the following conditions are both met.(2-trip detection logic) (a) When the ECM directs the gearshift to change to 5th gear, the actual gear is shifted to 4th. (b) When the ECM directs the gearshift to change to 6th gear, the actual gear is shifted to 4th. | Shift solenoid valve SL2 remains open Shift solenoid valve SLT remains open or closed Valve body is blocked (Brake control valve) Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: ECM commanded gear 1st 2nd 3rd 4th 5th 6th *: Actual gear position under malfunction 1st 2nd 3rd 4th 4th 4th
- Gear position during fail-safe operation: If any malfunction is detected, the ECM 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 ECM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the ECM and the actual gear position are not same, the ECM illuminates the MIL and stores the DTC.
The ECM 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 ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0761 | Shift Solenoid "C" Performance (Shift Solenoid Valve S3) | [S3 stuck ON malfunction*1:] When the ECM directs the gearshift to change to 5th or 6th gear, the engine overruns (clutch slips). The ECM determines there is a malfunction when either of the following conditions is met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 4th gear, the actual gear is shifted to 3rd. (b) When the ECM directs the gearshift to change to 5th gear, the engine overruns (clutch slips). [S3 stuck OFF malfunction*2:] Shifting to 1st, 2nd, and 3rd gears is impossible. The ECM determines there is a malfunction when the following conditions are both met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 2nd gear, the actual gear is shifted to 4th. (b) When the ECM directs the gearshift to change to 6th gear, the actual gear is shifted to 6th. | [S3 stuck ON malfunction*1:] Shift solenoid valve S3 remains open Shift solenoid valve SLT remains open or closed Valve body is blocked Automatic transmission (clutch, brake or gear, etc.) [S3 stuck OFF malfunction*2:] Shift solenoid valve S3 remains closed Valve body is blocked Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: ECM commanded gear 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under S3 stuck ON malfunction 1st 2nd 3rd 3rd N* N* *2: Actual gear position under S3 stuck OFF malfunction 3rd 4th 4th 4th 5th 6th () N*: Neutral
- Gear position during fail-safe operation: If any malfunction is detected, the ECM 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 1st 2nd 3rd 3rd 3rd 3rd *2: Actual gear position under fail safe mode when S3 stuck OFF malfunction 3rd 4th 4th 4th 5th 6th
This DTC indicates "stuck ON malfunction" or "stuck OFF malfunction" of the shift solenoid valve S3.
The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the ECM and the actual gear position are not same, the ECM illuminates the MIL and stores the DTC.
The ECM 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 ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0756 | Shift Solenoid "B" Performance (Shift Solenoid Valve S2) | [S2 stuck ON malfunction*1:] Shifting to 3rd and 5th gears is impossible. The ECM determines there is a malfunction when the following conditions are both met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 5th gear, the actual gear is shifted to 6th. (b) When the ECM directs the gearshift to change to 6th gear, the actual gear is shifted to 6th. [S2 stuck OFF malfunction*2:] The vehicle starts in 3rd gear and shifting to 6th gear is impossible. The ECM determines there is a malfunction when the following conditions are both met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 1st gear, the actual gear is shifted to 3rd. (b) When the ECM directs the gearshift to change to 6th gear, the actual gear is shifted to 5th. | [S2 stuck ON malfunction*1:] Shift solenoid valve S2 remains open Valve body is blocked Automatic transmission (clutch, brake or gear, etc.) [S2 stuck OFF malfunction*2:] Shift solenoid valve S2 remains closed Valve body is blocked Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: ECM commanded gear 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under S2 stuck ON malfunction 1st 2nd 2nd 4th 6th 6th *2: Actual gear position under S2 stuck OFF malfunction 3rd 3rd 3rd 4th 5th 5th
This DTC indicates "stuck ON malfunction" or "stuck OFF malfunction" of the shift solenoid valve S2.
The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the ECM and the actual gear position are not the same, the ECM illuminates the MIL and stores the DTC.
The ECM 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).
The ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0751 | Shift Solenoid "A" Performance (Shift Solenoid Valve S1) | [S1 stuck ON malfunction*1:] The ECM determines there is a malfunction when the following conditions are both met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 1st gear, the actual gear is shifted to 2nd. (b) When the ECM directs the gearshift to change to 5th gear, the actual gear is also shifted to 5th. [S1 stuck OFF malfunction*2:] The ECM determines there is a malfunction when the following conditions are both met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 5th gear, the actual gear is also shifted to 5th. (b) When the ECM directs the gearshift to change to 6th gear, the engine overruns (clutch slips). | [S1 stuck ON malfunction*1:] Shift solenoid valve S1 remains open Valve body is blocked Automatic transmission (clutch, brake or gear, etc.) [S1 stuck OFF malfunction*2:] Shift solenoid valve S1 remains closed Shift solenoid valve SLT remains open or closed Valve body is blocked No. 2 brake malfunction (Driving is difficult.) Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: ECM commanded gear 1st 2nd 3rd 4th 5th 6th *1: Actual gear position under S1 stuck ON malfunction detected 2nd 2nd 3rd 4th 5th 6th *2: Actual gear position under S1 stuck OFF malfunction detected 1st 1st 3rd 4th 5th N* () *: Neutral
- Gear position during fail-safe operation: If any malfunction is detected, the ECM 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 3rd 4th 5th 6th *2: Actual gear position under fail safe mode when S1 stuck OFF malfunction 1st*3 1st*3 3rd 3rd 3rd 3rd () *3: Under engine braking downshifting to 1st or 2nd gear is prohibited.
This DTC indicates a "stuck ON malfunction" or "stuck OFF malfunction" of the shift solenoid valve S1.
The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF". When the gear position commanded by the ECM and the actual gear position are not the same, the ECM illuminates the MIL and stores the DTC.
Shifting from 1st to 6th gear is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, S1, S2, S3, S4 and SR which is controlled by the ECM. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the gears to be shifted smoothly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0748 | Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1) | The ECM checks for an open or short in the shift solenoid valve SL1 circuit while driving and shifting between 4th and 5th gear. (1-trip detection logic) Output signal duty equals to 100%. (NOTE: SL1 output signal duty is less than 100% under normal condition.) | Open or short in shift solenoid valve SL1 circuit Shift solenoid valve SL1 ECM | Comes on | DTC stored |
This DTC indicates an open or short in the shift solenoid valve SL1 circuit. The ECM 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 ECM detects the problem, illuminates the MIL and stores this DTC. The ECM performs the fail-safe function and turns the other normal shift solenoid valves "ON/OFF". (In case of an open or short circuit, the ECM stops sending current to the circuit.)
While driving and shifting between 4th and 5th gear, if the ECM detects an open or short in the shift solenoid valve SL1 circuit, the ECM determines there is a malfunction.
The ECM 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 ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0729 | Gear 6 Incorrect Ratio | 6th gear malfunction: The ECM determines there is a malfunction when both of the following conditions are met. (2-trip detection logic) (a) When the ECM directs the gearshift to change to 5th gear, the actual gear is also shifted to 5th. (b) When the ECM directs the gearshift to change to 6th gear, the actual gear is shifted to 4th. | Valve body is blocked up or stuck (sequence valve) Shift solenoid valve SLT remains open or closed Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
HINT
- Gear positions in the event of a solenoid valve mechanical problem: ECM commanded gear 1st 2nd 3rd 4th 5th 6th Actual gear position under malfunction 1st 2nd 3rd 4th 5th 4th
- Gear position during fail-safe operation: If any malfunction is detected, the ECM 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 under fail-safe mode 1st 2nd 3rd 3rd 3rd 3rd
The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF" and switching oil pressure to the valves in the valve body.
This DTC indicates that the sequence valve is locked in the direction the spring stretches and that shifting to the 6th gear is impossible.
The transmission revolution sensor (SP2) detects the rotation speed of the transmission output shaft and sends signals to the ECM. The ECM determines the vehicle speed based on these signals. AC voltage is generated in the transmission revolution sensor (SP2) coil as the parking gear mounted on the rear planetary gear assembly rotates, and this voltage is sent to the ECM. The parking gear on the rear planetary gear is used as the timing rotor for this sensor.
The gear shift point and lock-up timing are controlled by the ECM based on signals from this vehicle speed sensor and the throttle position sensor signal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0722 | Output Speed Sensor Circuit No Signal | No transmission revolution sensor (SP2) signal to the ECM under the following conditions: (2-trip detection logic) (a) Park/neutral position switch assembly (P and N) is OFF (b) Vehicle speed is 5.59 mph (9 km/h) or more | Open or short in transmission revolution sensor (SP2) circuit Transmission revolution sensor (SP2) ECM | Comes on | DTC stored |
Reference (Using an oscilloscope)
Check the waveform between terminals SP2+ and SP2- of the ECM connector.
Scheme 462
Standard
Refer to the illustration.
| Terminal | SP2+ - SP2 |
|---|---|
| Tool setting | 2 V/DIV., 20 ms./DIV |
| Vehicle condition | Vehicle speed 20 km/h (12 mph) |
The transmission revolution sensor (SP2) monitors the output shaft speed. The ECM controls the gearshift point and the lock up timing based on signals from the transmission revolution sensor (SP2) and throttle position sensor.
If the ECM detects no signal from the transmission revolution sensor (SP2) even while the vehicle is moving, it will conclude that the transmission revolution sensor (SP2) is malfunctioning. The ECM will illuminate the MIL and store this DTC.
This sensor detects the rotation speed of the turbine which shows the input shaft revolution speed. By comparing the input turbine speed signal (NT) with the counter gear speed signal (SP2), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. Thus, providing smooth gear shifts.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0717 | Turbine Speed Sensor Circuit No Signal | ECM detects conditions (a), (b) and (c) continuously for 5 sec. or more: (1-trip detection logic) (a) Output shaft speed is 1000 rpm or more (Vehicle speed: 50 km/h (31 mph) or more) (b) Park/neutral position switch assembly: P input signal is OFF NSW input signal is OFF R input signal is OFF (c) Transmission revolution sensor (NT): less than 300 rpm | Open or short in transmission revolution sensor (NT) circuit Transmission revolution sensor (NT) ECM Automatic transmission (clutch, brake or gear, etc.) | Comes on | DTC stored |
Reference (Using an oscilloscope)
Check the waveform between the terminals NT+ and NT- of the ECM connector.
Scheme 463
Standard
Refer to the illustration.
| Terminal | NT+ - NT |
|---|---|
| Tool setting | 1 V/DIV., 2 ms./DIV. |
| Vehicle condition | Engine idle speed (P or N position) |
This DTC indicates that pulse are not output from the transmission revolution sensor (NT) (Turbine (input) speed sensor) or output irregularly. The NT terminal of the ECM detects the revolution speed signal from transmission revolution sensor (NT) (input RPM). The ECM outputs a gearshift signal comparing the transmission revolution sensor (NT) with the transmission revolution sensor (SP2).
While the vehicle is being driven in 4th, 5th or 6th gear with the shift lever in D, if the input shaft revolution (speed) is less than 300 rpm*1 with the output shaft revolution (speed) 1000 rpm or more*2, the ECM interprets this as malfunction, illuminates the MIL and stores the DTC.
*1: Pulse is not output or is irregularly output.
*2: The vehicle speed is approx. 50 km/h (31 mph) or more.
The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance value which is input into the ECM.
The ECM applies a voltage to the temperature sensor through OIL terminal of the ECM.
The sensor resistance changes with the transmission fluid temperature. As the temperature becomes higher, the sensor resistance decreases.
One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down as the temperature becomes higher.
The ECM calculates the fluid temperature based on the voltage signal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0712 | Transmission Fluid Temperature Sensor "A" Circuit Low Input | ATF temperature sensor resistance is less than 79 ohms for 0.5 sec. or more (1-trip detection logic) | Short in ATF temperature sensor circuit Transmission wire (ATF temperature sensor) ECM | Comes on | DTC stored |
| P0713 | Transmission Fluid Temperature Sensor "A" Circuit High Input | ATF temperature sensor resistance is more than 156 kohms for 0.5 seconds or more. Either of the following conditions is met (1 trip detection logic): Condition (A): 297 seconds or more have elapsed after the engine start when engine coolant temperature or intake air temperature is -29.375°C (-20.875°F) or less. Condition (B): 10 seconds or more have elapsed after the engine start when engine coolant temperature and intake air temperature are more than -29.375°C (- 20.875°F). | Open in ATF temperature sensor circuit Transmission wire (ATF temperature sensor) ECM | Comes on | DTC stored |
These DTCs indicate an open or short in the automatic transmission fluid (ATF) temperature sensor (TFT sensor) circuit. The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an open or short in the ATF temperature circuit. If the resistance value of the ATF temperature is less than 79 ohms*1 or more than 156 kohms*2, the ECM interprets this as a malfunction of the ATF sensor or wiring. The ECM will illuminate the MIL and store a DTC.
*1: 150°C (302°F) or more is indicated regardless of the actual ATF temperature.
*2: -40°C (-40°F) is indicated regardless of the actual ATF temperature.
HINT
The ATF temperature can be checked on the Techstream display.
The park/neutral position switch assembly detects the shift lever position and sends signals to the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0705 | Transmission Range Sensor Circuit Malfunction (PRNDL Input) | When condition (A), (B) or (C) is met: (A) One of the following conditions 1, 2 or 3 is met: (2-trip detection logic) 1. Any 2 or more signals of the following are ON simultaneously: P input signal R input signal D input signal 2. Any 2 or more signals of the following are ON simultaneously: N input signal R input signal D input signal 3. Any 2 or more signals of the following are ON simultaneously: NSW input signal R input signal D input signal (B) When any of following conditions is met for 2.0 sec. or more with the shift lever in the M position (2-trip detection logic) P input signal is ON. N input signal is ON. NSW input signal is ON. R input signal is ON. (C) All switches are OFF simultaneously for the P, NSW, R, N and D positions (2-trip detection logic) | Open or short in park/neutral position switch assembly circuit Park/neutral position switch assembly ECM | Comes on | DTC stored |
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 ECM.
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 sends a signal to the ECM according to the shift position (P, R, N, D, 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. and will illuminate the MIL and store this DTC.
Refer to DTC P0712.
Refer to DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input [04/2013 - ]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0711 | Transmission Fluid Temperature Sensor "A" Performance | One of the following conditions (A), (B) or (C) is met: (A) Both (a) and (b) are detected: (2-trip detection logic) (a) Intake air and engine coolant temperatures are more than 15°C (59°F) at engine start (b) After normal driving for over 10 min. and 0.7 km (0.4 mile) or more, ATF temperature is less than 20°C (68°F) (B) Both (a) and (b) are detected: (2-trip detection logic) (a) Intake air and engine coolant temperatures are more than -10°C (14°F) at engine start (b) After normal driving for over 15 min. and 50 sec. and 1 km (0.6 mile) or more, ATF temperature is less than 20°C (68°F) (C) Both (a) and (b) are detected: (2-trip detection logic) (a) Engine coolant temperature is less than 35°C (95°F) at engine start (b) ATF temperature is 110°C (230°F) or more when engine coolant temperature reaches 60°C (140°F) | Transmission wire (ATF temperature sensor) | Comes on | DTC stored |
This DTC indicates that there is a problem with output from the automatic transmission fluid (ATF) temperature sensor (TFT 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 ECM determines the ATF temperature and detects an opens or shorts in the ATF temperature circuit or a malfunction of the ATF temperature sensor.
After driving the vehicle for a certain amount of time, the ATF temperature should increase. If the ATF temperature is below 20°C (68°F) after driving the vehicle for a certain amount of time, the ECM interprets this as a malfunction and illuminates, and turns on the MIL.
The transmission control switch detects when the shift lever is moved to M.
Using the transmission control switch, when the shift lever is in M, it is possible to select between 1st and 6th gears (M1 to M6).
Moving the shift lever to "+" once selects the next higher gear, and moving the shift lever to "-" once selects the next lower gear.
Scheme 464
Scheme 465
- INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY) Disconnect the transmission control switch connector. *a Component without harness connected (Transmission Control Switch) Measure resistance between each terminal of transmission control switch when the shift lever is moved to each position. Standard Resistance Tester Connection Condition Specified Condition 4 - 5 M, "+" and "-" Below 1 ohms Except M, "+" and "-" 10 kohms or higher 3 - 2 Press continuously"+"(Up shift) Below 1 ohms M 10 kohms or higher 1 - 2 Press continuously"-"(Down shift) Below 1 ohms M 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY). Refer to «COMPONENTS [04/2013 - ]»(ref-665750-S35401531562014102400000) Result: 1 OK See step 2
- CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Transmission Control Switch) Standard Voltage Tester Connection Condition Specified Condition K80-4 (IG) - Body ground Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V Turn the engine switch off position. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K80-2 (E) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
- CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) Connect the transmission control switch connector. Disconnect the A77 ECM connector. *a Rear view of wire harness connector (to ECM) Turn the engine switch on (IG) position, and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position. Standard Voltage Tester Connection Shift Position Specified Condition A77-16 (S) - Body ground M, "+" and "-" 11 to 14 V Except M, "+" and "-" Below 1 V Turn the engine switch off position. Disconnect the spiral cable connector. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position. Standard Resistance Tester Connection Shift Position Specified Condition A77-8 (SFTU) - Body ground Press continuously"+"(Up shift) Below 1 ohms M 10 kohms or higher A77-7 (SFTD) - Body ground Press continuously"-"(Down shift) Below 1 ohms M 10 kohms or higher Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665558-S36198230962014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR
When the shift lever is in D, operating the "-" side shift paddle switch will cause the transmission to enter fixed range mode which restricts the highest gear. By operating the shift paddle switches "+" (UP) or "-" (DOWN), the shift range can be changed.
When the vehicle is being driven in D position (fixed range mode), if the vehicle is stopped or the accelerator pedal is kept steady for a certain period of time with the transmission in the same gear, the vehicle will change back automatically to normal D position operation.
When the shift lever is in M, it is possible to make use of the highest engine speeds by holding the vehicle in a gear. Gear hold control means that gear shifts will not be performed as long as the paddle switches are not operated in either the "+" (UP), or "-" (DOWN) direction.
Scheme 466
Scheme 467
Scheme 468
Scheme 469
Scheme 470
- CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH - ECM) Disconnect the A77 ECM connector. *a Rear view of wire harness connector (to ECM) Measure the resistance between each terminal when the shift paddle is moved to each position. Standard Resistance Tester Connection Shift Paddle Position Specified Condition A77-8 (SFTU) - Body ground Pull continuously"+"(Up shift) Below 2.5 ohms Release"+"(Up shift) 1 Mohms or higher A77-7 (SFTD) - Body ground Pull continuously"-"(Down shift) Below 2.5 ohms Release"-"(Down shift) 1 Mohms or higher Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Result: 2 NG See step 2
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND) Disconnect the K26 spiral cable connector. *a Front view of wire harness connector (to Spiral Cable Sub-Assembly) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K26-2 (ECC) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
- INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Inspect the spiral cable with sensor sub-assembly. Refer to «INSPECTION [04/2013 - ]»(ref-665530-S35262010622014102400000) Result Proceed to OK NG Result: 2 NG REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY. Refer to «COMPONENTS [04/2013 - ]»(ref-665530-S01345083652014102400000) Result: 1 OK See step 4
- INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Remove the transmission shift switch. Refer to «REMOVAL [04/2013 - ]»(ref-665750-S26610869532014102400000) *a Component without harness connected (Shift Paddle Switch LH (Transmission Shift Switch)) Measure the resistance between each terminal when the shift paddle is moved to each position. Standard Resistance Tester Connection Shift Paddle Position Specified Condition C-1 (SDN) - C-2 (ECC) Pull continuously"-"(Down shift) Below 2.5 ohms Release"-"(Down shift) 1 Mohms or higher Result Proceed to OK NG Result: 2 NG REPLACE SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY). Refer to «COMPONENTS [04/2013 - ]»(ref-665750-S32798136372014102400000) Result: 1 OK See step 5
- INSPECT SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Remove the transmission shift switch. *a Component without harness connected (Shift Paddle Switch RH (Transmission Shift Switch)) Refer to «REMOVAL [04/2013 - ]»(ref-665750-S26610869532014102400000) Measure the resistance between each terminal when the shift paddle is moved to each position. Standard Resistance Tester Connection Shift Paddle Position Specified Condition B-3 (SUP) - B-2 (ECC) Pull continuously"+"(Up shift) Below 2.5 ohms Release"+"(Up shift) 1 Mohms or higher Result Proceed to OK NG Result: 2 NG REPLACE SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY). Refer to «COMPONENTS [04/2013 - ]»(ref-665750-S32798136372014102400000) Result: 1 OK See step 6
- INSPECT NO. 1 SWITCH WIRE Install the transmission shift switch. *a Component without harness connected (No. 1 switch wire) Disconnect the No. 1 switch wire connector from the steering pad switch. Measure the resistance between each terminal when the shift paddle is moved to each position. Standard Resistance Tester Connection Shift Paddle Position Specified Condition A-1 (SUP) - A-3 (ECC) Pull continuously"+"(Up shift) Below 2.5 ohms Release"+"(Up shift) 1 Mohms or higher A-2 (SDN) - A-3 (ECC) Pull continuously"-"(Down shift) Below 2.5 ohms Release"-"(Down shift) 1 Mohms or higher Result Proceed to OK NG Result: 2 NG REPLACE SWITCH NO. 1 WIRE Result: 1 OK See step 7
- CHECK STEERING PAD SWITCH ASSEMBLY Connect the No. 1 switch wire connector to the steering pad switch. *a Component without harness connected (Steering Pad Switch Assembly) Disconnect the steering pad switch connector. Measure the resistance between each terminal when the shift paddle is moved to each position. Standard Resistance Tester Connection Shift Paddle Position Specified Condition z4-6 (SUP) - z4-7 (ECC) Pull continuously"+"(Up shift) Below 2.5 ohms Release"+"(Up shift) 1 Mohms or higher z4-12 (SDN) - z4-7 (ECC) Pull continuously"-"(Down shift) Below 2.5 ohms Release"-"(Down shift) 1 Mohms or higher Result Proceed to OK NG Result: 2 NG REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to «COMPONENTS [04/2013 - ]»(ref-665793-S27687458792014102400000) Result: 1 OK See step 8
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - ECM) Disconnect the K26 spiral cable connector. Disconnect the A77 ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A77-8 (SFTU) - K26-14 (SUP) Always Below 1 ohms A77-7 (SFTD) - K26-7 (SDN) Always Below 1 ohms A77-8 (SFTU) or K26-14 (SUP) - Body ground Always 10 kohms or higher A77-7 (SFTD) or K26-7 (SDN) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665558-S36198230962014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR