2010 Cadillac Truck SRX AWD V6-3.0L Page 2120

2010 Cadillac Truck SRX AWD V6-3.0L Page 2120

P2728

* DTC P2728 has not set this ignition cycle.

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

* The ignition voltage is 8.6 volts or greater.

P2729

* DTC P2729 has not set this ignition cycle.

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

* The ignition voltage is 8.6 volts or greater.

P2730

* DTC P2730 has not set this ignition cycle.

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

* The ignition voltage is 8.6 volts or greater.

Conditions for Setting the DTC

P2728

The TCM detects an internal electrical performance malfunction of the clutch PC solenoid 5 control circuit where the measured clutch PC solenoid

5 current does not equal the commanded clutch PC solenoid 5 current for 5 seconds.

P2729

The TCM detects a short to ground on the clutch PC solenoid 5 control circuit for 1 second.

P2730

The TCM detects an open or short to voltage on the clutch PC solenoid 5 control circuit for 1 second.

Action Taken When the DTC Sets

P2728

* DTC P2728 is a Type C DTC.

* The TCM freezes transmission adaptive functions on the 1-2-3-4 clutch.

P2729

* DTC P2729 is a Type A DTC.

* The TCM commands maximum line pressure.

* The TCM freezes transmission adaptive functions.

* The TCM inhibits Tap Up/Down function.

* The TCM inhibits manual shifting of forward gears.

* The TCM limits then the transmission to reverse, 1st and 3rd gear.

P2730

* DTC P2730 is a Type A DTC.

* The TCM inhibits the TCC.

* The TCM forces High Side Driver 1 OFF.

* The TCM commands maximum line pressure.

* The TCM inhibits Tap Up/Down function.

* The TCM inhibits manual shifting of forward gears.

* The TCM limits then the transmission to reverse and 5th gear.

Conditions for Clearing the DTC

* DTC P2728 is a Type C DTC.

* DTCs P2729 and P2730 are Type A DTCs.

Reference Information

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

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

Automatic Transmission/Transmission General Description)

Electrical Information Reference