Sunday, December 29, 2019

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1101

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1101



* DTC P0201, P0202, P0203, P0204, P0205, P0206 P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, or



P0277 is not set.



* The ignition voltage is greater than 10 volts.



* The engine is operating.



* The HO2S 1 heater duty cycle is greater than 70 percent for greater than 8 seconds.



* DTC P0132 runs continuously once the conditions above exist for greater than 5 seconds.



DTC P0134



* DTC P0131, P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274,



P0276, or P0277 is not set.



* The ignition voltage is greater than 10 volts.



* The engine is operating.



* The HO2S 2 is at operating temperature.



* The HO2S 1 heater duty cycle is greater than 70 percent for greater than 8 seconds.



OR



* The HO2S 1 heater duty cycle is greater than 68 percent and the calculated exhaust temperature is greater than 600掳C (1112掳F) for more than



30 seconds.



* The air flow into the engine has exceeded 10 grams.



* DTCs P0134 runs continuously once the conditions above exist for greater than 5 seconds.



Conditions for Setting the DTC



DTC P0131 - Condition 1



The ECM detects that the HO2S 1 signal voltage is less than 60 mV while the corresponding HO2S 2 voltage is greater than 500 mV.



DTC P0131 - Condition 2



The ECM detects that the HO2S 1 signal voltage is less than 60 mV after a cold start with the engine coolant temperature (ECT) less than 40掳C



(104掳F).



DTC P0132



The ECM detects that the HO2S 1 signal voltage is greater than 1,150 mV.



DTC P0134



DTC P0134 sets if any of the following conditions exist:



* An HO2S 1 signal voltage is between 400-600 mV, or 400-550 mV when the calculated exhaust temperature is greater than 800掳C (1,472掳F)



* The calculated internal resistance of a HO2S 1 is greater than 20,000 ohm when the calculated exhaust temperature is greater than 600掳C



(1112掳F).



* A corresponding HO2S 1 and HO2S 2 are greater than 200 mV during a decel fuel cut-off greater than 3 seconds.



Action Taken when the DTC Sets



DTC P0131, P0132, and P0134 are Type B DTCs



Conditions for Clearing the MIL/DTC



DTC P0131, P0132, and P0134 are Type B DTCs



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)



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)

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