P0716

DTC P0716 (3.0L)

Circuit Description
The automatic transmission Input Speed Sensor (ISS) provides transmission input speed to the TCM. The ISS is a permanent magnet generator. The sensor mounts into the transmission case and maintains a slight air gap between the sensor and the drive sprocket. The ISS produces an AC voltage as the drive sprocket rotor teeth pass through the magnetic field of the sensor. The AC voltage level increases as the turbine shaft speed increases. The TCM converts the AC voltage into a digital signal. The TCM determines actual turbine speed using the digital signal. The TCM uses the input speed to calculate torque converter slip speed, and gear ratios.

When the TCM detects an unreasonably large change in the input speed, in a very short period of time, DTC P0716 sets. DTC P0716is a type B DTC.

Conditions for Running the DTC
^ No MAP DTCsP0101,P0102, or P0103.
^ No MAP DTCsP0107 or P0108.
^ No TP DTCsP0121,P0122, or P0123.
^ No VSS DTCsP0502 or P0503.
^ No ISS DTC P0717.
^ No 1-2 SS valve DTC P0752.
^ No 1-2 SS electrical DTCs P1842 or P1843.
^ The engine is running for 5 seconds.
^ The TP angle is greater than 15 percent.
^ The vehicle speed is greater than 8 km/h (5 mph).
^ The engine torque is 85 - 150 Nm (63 - 111 ft. lbs.).
^ The input shaft speed is greater than 1,800 RPM for 6 seconds.
^ An increase in input shaft speed of 500 RPM or greater has not occurred for 0.5 seconds.

Conditions for Setting the DTC
The input speed changes by greater than 1,300 RPM in 0.8 seconds.

Action Taken When the DTC Sets
^ The TCM requests the ECM to illuminate the Malfunction Indicator Lamp (MIL) during the second consecutive trip in which the Conditions for Setting the DTC are met.
^ The TCM commands maximum line pressure.
^ The TCM freezes transmission adaptive functions.
^ The ECM records the operating conditions when the Conditions for Setting the DTC are met. The ECM stores this information as Freeze Frame and Failure Records.
^ The TCM records the operating conditions when the Conditions for Setting the DTC are met. The TCM stores this information as Failure Records.
^ The TCM stores DTC P0716 in TCM history during the second consecutive trip in which the Conditions for Setting the DTC are met.

Conditions for Clearing the MIL/DTC
^ The ECM turns OFF the MIL after the third consecutive drive trip in which the TCM does not send a MIL illumination request.
^ A scan tool can clear the MIL/DTC.
^ The TCM clears the DTC from TCM history if the vehicle completes 40 warm-up cycles without an emission-related diagnostic fault occurring.
^ The TCM cancels the DTC default actions when the ignition switch is OFF long enough in order to power down the TCM.

Diagnostic Aids
Ensure the wiring harness is not stretched too tightly or other components are pressing on the connector body. Also, inspect for proper clearance to any other components and wiring. Refer to Testing for Intermittent and Poor Connections.

Test Description
The numbers below refer to the step numbers on the diagnostic table.
3. This step tests the ISS for correct resistance.
8. This step tests the ISS high signal circuit for being shorted to another circuit within the transmission.

Steps 1 - 7:

Steps 8 - 15:

DTC P0716 (3.0L)