2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1580

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1580

The input speed sensor (ISS) is a hall-effect type sensor. The ISS mounts to the inside of the automatic transmission case assembly and connects to

the control solenoid valve assembly through a 2-wire harness and connector. The sensor faces the reluctor wheel which is attached to the 4-5-6

clutch and 3-5-R clutch housing. The sensor receives 8.3-9.3 volts on the ISS supply voltage circuit from the transmission control module (TCM).

As the 4-5-6 clutch and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the teeth of the reluctor wheel. This signal is

transmitted through the ISS signal circuit to the TCM. The TCM uses the ISS signal to determine line pressure, transmission shift patterns, torque

converter clutch (TCC) slip speed, and gear ratio.

Conditions for Running the DTC

P0716

* No DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0716, P0717, P0752, P0973, or P0974.

* The engine speed is greater than 400 RPM for 5 seconds.

* The ignition voltage is greater than 8.6 volts.

* The engine torque signal is valid.

* The throttle position signal is valid.

P0717

* No DTC P0717.

* The engine speed is greater than 400 RPM for 5 seconds.

* The ignition voltage is greater than 8.6 volts.

* The vehicle speed is greater than 16 km/h (10 mph).

* The engine torque is greater than 50 Nm (37 lb ft).

* DTC P0717 has not passed this ignition cycle.

Conditions for Setting the DTC

P0716

Transmission input speed drops 1,350 RPM for greater than 1.0 second.

P0717

Transmission input shaft speed is less than 50 RPM for 5.0 seconds.

Action Taken When the DTC Sets

* P0716 and P0717 are Type A DTCs.

* The TCM freezes transmission adaptive functions.

* The TCM commands the high side driver off.

* The TCM commands TCC off.

* The TCM commands maximum line pressure.

* The TCM disables neutral idle.

* The TCM inhibits Tap Up/Down function.

* The TCM inhibits manual shifting of forward gears.

* The TCM allows the transmission to operate in reverse, third, and fifth range.

Conditions for Clearing the DTC

P0716 and P0717 are Type A DTCs.

Diagnostic Aids

Damage or misalignment of the 4-5-6 clutch and 3-5-R clutch housing reluctor machined teeth surface may cause a speed sensor malfunction.

Reference Information

Schematic Reference

Automatic Transmission Controls Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Diagrams)

Connector End View Reference

* Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

* Inline Harness Connector End Views (See: Diagrams/Connector Views/Multiple Junction Connector/Connector End Views By Number)

Description and Operation

Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/6T70/6T75 -

Automatic Transmission/Electronic Component Description) for input speed sensor (ISS)

Electrical Information Reference