2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1161
P0122
The ECM detects the throttle position sensor 1 signal voltage is less than 0.18 V for greater than 1 s or a cumulative of 4 s.
P0123
The ECM detects the throttle position sensor 1 signal voltage is greater than 4.6 V for greater than 1 s or a cumulative of 4 s.
P0221
The throttle position sensor 2 disagrees greater than 9 % from throttle position sensor 1, or throttle position sensor 2 disagrees greater than 9 %
from the predicted value for greater than 1 s or a cumulative of 4 s.
P0222
The ECM detects the throttle position sensor 2 signal voltage is less than 0.16 V for greater than 1 s or a cumulative of 4 s.
P0223
The ECM detects the throttle position sensor 2 signal voltage is greater than 4.9 V for greater than 1 s or a cumulative of 4 s.
Action Taken When the DTC Sets
* DTCs P0121 and P0221 are Type B DTCs.
* DTCs P0122, P0123, P0222, and P0223 are Type A DTCs.
Conditions for Clearing the DTC
* DTCs P0121 and P0221 are Type B DTCs.
* DTCs P0122, P0123, P0222, and P0223 are Type A DTCs.
Diagnostic Aids
If there is a condition with the throttle position sensors, the ECM defaults to reduced power mode for the entire ignition cycle, even if the condition
is corrected.
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)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
