DTC P0716 Eurpoean and N American Emissions
Circuit Description
Information is relative to transmission input speed to the transmission control module (TCM). The TCM uses transmission input speed information to control line pressure, the TCC apply and release, and transmission shift patterns. This information is also used to calculate the appropriate operating gear ratios and TCC slippage.
The input speed sensor mounts onto piston B inside of the valve body.
An air gap of 1.8-2.2 mm (0.07-0.086 in) is maintained between the sensor and the piston B.
The sensor consists of a permanent magnet surrounded by a coil of wire. As piston B is driven by the turbine shaft, an AC signal is induced by the input speed sensor. Higher vehicle speeds induce a higher frequency and voltage measurement at the sensor.
The sensor resistance should measure between 825-835 ohms at 20°C (68°F). The sensor resistance can measure from 1,000-8,000 hertz.
Conditions for Setting the DTC
| • | The increasing rate of the turbine speed is more than 45,000 RPM/seconds. |
| • | The voltage is more than 8.5 volts. |
| • | The engine is running. |
| • | DTC P0727 is not set. |
| • | The gear position is D. |
| • | The TCM or engine control module (ECM) is defective. |
Action Taken When the DTC Sets
| • | The malfunction indicator lamp (MIL) will illuminate. |
| • | The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer. |
| • | Adopt Emergency/Substitute mode and constant 4th gear by hydraulic control. |
| • | After ignition OFF/ON, 3rd gear by hydraulic control, and the positions P, R, and N are also possible. |
| • | Open lock up clutch |
Conditions for Clearing the MIL/DTC
| • | The MIL will turn OFF when the malfunction has not occurred after 3 ignition cycles. |
| • | A history DTC will clear after 40 consecutive warm-up cycles without a fault. |
| • | Clear the DTCs with a scan tool. |
Diagnostic Aids
If DTC P0716 sets, the possible cause of fault could be the input speed sensor (ISS).
Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Did you perform an On-Board Diagnostic (EOBD) System Check? Has the system check been completed? | -- | Go to Step 2 | |
2 |
Is the speed within the specified range? | 0-7,000 RPM | Go to Diagnostic Aids | Go to Step 3 |
3 |
Is the resistance within the specified range? | 825-835 ohms | Go to Step 9 | Go to Step 4 |
4 |
Is the resistance within the specified values shown? | 5 ohms | Go to Step 6 | Go to Step 5 |
5 | Repair the malfunctioning terminals, as necessary. Is the action complete? | -- | System OK | -- |
6 |
Is the voltage within the specified range? | 11-14 V | Go to Step 7 | Go to Step 8 |
7 | Repair the short to battery power. Is the action complete? | -- | System OK | -- |
8 | Replace the input speed sensor. Is the action complete? | -- | System OK | -- |
9 |
Is the resistance within the values shown? | 0 ohms | Go to Step 11 | Go to Step 10 |
10 | Repair the malfunctioning terminals, as necessary. Is the action complete? | -- | System OK | -- |
11 |
Is the voltage within the specified range? | 11-14 V | Go to Step 12 | Go to Step 13 |
12 | Repair the malfunctioning terminals, as necessary. Is the action complete? | -- | System OK | -- |
13 | Replace the TCM. Refer to Transmission Control Module Replacement . Is the action complete? | -- | Go to Step 14 | -- |
14 |
Did the last test fail or is the current DTC displayed? | -- | Go to Step 2 | System OK |
DTC P0716 Non Europe or N American Emissions
Circuit Description
The transaxle control module (TCM) uses transaxle input speed information to control line pressure, torque converter clutch (TCC) apply and release, and transaxle shift patterns. This information is also used to calculate the appropriate operating gear ratios and TCC slippage.
The input speed sensor mounts onto piston B that is inside of the valve body.
An air gap of 1.8-2.2 mm (0.07-0.086 in) is maintained between the sensor and piston B.
The sensor consists of a permanent magnet surrounded by a coil of wire. As piston B is driven by the turbine shaft, an AC signal is induced by the input speed sensor. Higher vehicle speeds induce a higher frequency and voltage measurement at the sensor.
Sensor resistance should measure between 825-835 ohms at 20°C (68°F). The sensor can measure from 1,000-8,000 hertz.
Conditions for Setting the DTC
| • | The increasing rate of the turbine speed is more than 45,000 RPM/second. |
| • | System voltage is greater than 8.5 volts. |
| • | The engine is running. |
| • | No engine speed error DTC P0727. |
| • | The gear position is D. |
| • | The TCM or engine controls module (ECM) is defective. |
| • | Input speed is more than 7,000 RPM. |
| • | Engine speed is more than 3,100 RPM, and turbine speed is less than 100 RPM. |
Action Taken When the DTC Sets
| • | The hold lamp will blink. |
| • | The TCM will record operating conditions at the time the diagnostic fails. This information will be stored in the Failure Records buffer. |
| • | Adopt Emergency/Substitute mode and constant 4th gear by hydraulic control. |
| • | After the ignition is OFF/ON: 3rd gear by hydraulic control, position P, R, and N also possible. |
| • | Open lock up clutch |
Conditions for Clearing the Hold Lamp/DTC
| • | The hold lamp will turn OFF when the malfunction has not occurred after 3 ignition cycles. |
| • | A history DTC will clear after 40 consecutive warm-up cycles without a fault. |
| • | Using a scan tool can clear history DTCs. |
Diagnostic Aids
When DTC P0716 sets, the possible cause of fault could be the input speed sensor (ISS).
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Automatic Transmission? | -- | Go to Step 2 | |
2 |
Is the speed within the specified values? | 0-7,000 RPM | Go to Diagnostic Aids | Go to Step 3 |
3 |
Is the resistance within the specified values? | 825-835 ohms | Go to Step 9 | Go to Step 4 |
4 |
Is the resistance within the specified value? | 0 ohms | Go to Step 6 | Go to Step 5 |
5 | Repair the malfunctioning terminals as necessary. Did you complete the repair? | -- | System OK | -- |
6 |
Is the voltage within the specified values? | 11-14 V | Go to Step 7 | Go to Step 8 |
7 | Repair the short to battery power. Did you complete the repair? | -- | System OK | -- |
8 | Replace the input speed sensor. Did you complete the replacement? | -- | System OK | -- |
9 |
Is the resistance within the specified value? | 0 ohms | Go to Step 11 | Go to Step 10 |
10 | Repair the malfunctioning terminals as necessary. Did you complete the repair? | -- | System OK | -- |
11 |
Is the voltage within the specified values? | 11-14 V | Go to Step 12 | Go to Step 13 |
12 | Repair the malfunctioning terminals as necessary. Did you complete the repair? | -- | System OK | -- |
13 | Replace the TCM. Refer to Transmission Control Module Replacement . Did you complete the replacement? | -- | Go to Step 14 | -- |
14 |
Are there any DTCs that have not been diagnosed? | -- | Go to Step 2 | System OK |
