2010 Cadillac Truck SRX FWD V6-3.0L Page 1944
P2176
* DTCs P0068, P0122, P0123, P0222, P0223 are not set.
* The ignition is ON.
* The ignition voltage is greater than 6 V and reduced power is not active.
* DTC P2176 runs continuously when the above conditions are met.
Conditions for Setting the DTC
P1516
The ECM detect an inability to maintain a steady state throttle position for 4 s.
P2101
The ECM detects the difference between the actual throttle position, and the desired position is greater than 7 percent.
P2119
* The ECM detects that the throttle blade did not return to the default position, during power down, within a calibrated amount of time.
or
* The ECM detects the throttle control is driving the throttle in the incorrect direction or exceeds the reduced power limit.
P2176
The ECM detects that both throttle position sensors were greater than 0.95 V during the minimum learn procedure.
Action Taken When the DTC Sets
* DTCs P1516, P2101, and P2176 are type A DTCs.
* DTC P2119 is a type C DTC.
Conditions for Clearing the MIL/DTC
* DTCs P1516, P2101, and P2176 are type A DTCs.
* DTC P2119 is a type C DTC.
Diagnostic Aids
* Inspect for a condition in which the throttle valve may have been held open. For example, ice may have formed in the throttle bore causing
the throttle valve not to close.
* A high resistance condition on the throttle position and throttle actuator control circuits could cause a DTC to set.
* A low battery condition may cause a DTC to set.
Reference Information
Schematic Reference
Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics
(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Throttle Actuator Control (TAC) System Description (See: Powertrain Management/Computers and Control Systems/Description and
Operation/Throttle Actuator Control (TAC) System Description)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
