2010 Cadillac CTS Sedan AWD V6-3.0L Page 1647

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1647

* Transmission fluid temperature (TFT) is equal to or greater than 0掳C (32掳F).

* High side driver is enabled.

* Average driven wheel speed is 80 RPM or more.

* Side to side average wheel speed between driven and non-driven wheel is 150 RPM or less for 6 seconds.

* The transmission input shaft speed is greater than 60 RPM.

* PC solenoid 2 is commanded ON.

* 3rd or 5th gear ratio has been achieved.

P0777

* DTCs P0716, P0717, P0722, P0723, or P182E are not set.

* Transmission fluid temperature (TFT) is equal to or greater than 0掳C (32掳F).

* Ignition voltage is 8.6 volts or greater.

* Engine speed is 500 RPM or greater for 5 seconds.

* High side driver is enabled.

* The transmission input and output shaft speed is greater than 200 RPM.

* PC solenoid 2 is commanded OFF.

Conditions for Setting the DTC

P0776

The TCM detects an incorrect on-coming clutch gear ratio, or flare, when the 3-5-R clutch is commanded ON for 2.25 seconds and the transmission

input shaft speed is 60-100 RPM or greater from the anticipated input shaft speed.

P0777

The TCM detects an incorrect off-going clutch gear ratio, or tie-up, when the 3-5-R clutch is commanded OFF for 1.2 seconds and the transmission

input shaft speed is 40 RPM or less from the anticipated input shaft speed.

Action Taken When the DTC Sets

* DTCs P0776 and P0777 are Type A DTCs.

* The TCM commands maximum line pressure.

* The TCM inhibits TCC.

* The TCM freezes transmission adaptive functions.

* The TCM inhibits TAP Up/Down function.

Conditions for Clearing the DIC/DTC

DTCs P0776 and P0777 are Type A DTCs.

Diagnostic Aids

Before performing a road test, configure and setup the scan tool for snapshot mode. This will allow you to display, monitor, and verify multiple

transmission data parameters at one time, after the road test.

Reference Information

Connector End View Reference

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

* Inline Harness Connector End Views (See: Power and Ground Distribution/Multiple Junction Connector/Diagrams)

Description and Operation

* Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/Electronic Component Description)

* Transmission General Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/Transmission General Description)

* Transmission Component and System Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/Transmission Component and System Description)

* Park - Engine Running (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/Park - Engine

Running)

* Reverse (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/Reverse)

* Neutral - Engine Running (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/Neutral -

Engine Running)

* Drive Range, First Gear Engine Braking (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/Drive Range/First Gear Engine Braking)

* Drive Range, First Gear (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/Drive Range/First

Gear)

* Drive Range, Second Gear (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/Drive