Thursday, December 3, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 998

2010 Cadillac Truck SRX AWD V6-3.0L Page 998



* The engine coolant temperature (ECT) is greater than 71掳C (159掳F).



* The intake air temperature (IAT) is warmer than -40掳C (-40掳F)



* The ignition 1 voltage is between 10-32 V.



* The fuel level is greater than 10 %.



* The engine run time is greater than 60 s.



* The engine speed is between 1,000-3,000 RPM.



* The barometric (BARO) pressure is greater than 70 kPa.



* The mass airflow (MAF) is between 15-55 g/s.



* The fuel system is in Closed Loop.



* The throttle position (TP) is greater than 5 %.



* The DTCs run once per drive cycle when the above conditions are met.



P013A P013C, P013E, or P014A



* Before the ECM can report DTC P013A, or P013C failed, DTCs P013E, P014A, P2270, and P2272 must run and pass.



* Before the ECM can report DTC P013E, or P014A failed, DTCs P2270 and P2272 must run and pass.



* DTCs P0030, P0036, P0053, P0054, P0101, P0102, P0103, P0106, P0107, P0108, P0120, P0121, P0122, P0123, P0131, P0132, P0133,



P0134, P0135, P0137, P0138, P013A, P013B, P013E, P013F, P0140, P0141, P0171, P0172, P0201, P0202, P0203, P0204, P0220, P0222,



P0223, P0300, P0442, P0443, P0446, P0449, P0455, P0496, P1133, P1174, P1516, P2101, P2119, P2135, P2176, P2270, P2271, P2A00 are



not set.



* The ignition 1 voltage is between 10-32 V.



* The learned heater resistance is valid.



* The fuel level is greater than 10 %.



* The engine run time is equal to or greater than 5 min.



* The accelerator pedal (APP) is steady.



* The torque converter clutch (TCC) is applied.



* The DTCs run once per ignition cycle, during decel fuel cut-off (DFCO), when the above conditions are met.



P013B P013D, P013F, or P014B



* Before the ECM can report DTC P013B, or P013D failed, DTCs P013A, P013C, P013E, P013F, P014A, P014B, P2270, P2271, P2272, and



P2273 must run and pass.



* Before the ECM can report DTC P013F, or P014B failed, DTCs P013A, P013C, P013E, P014A, P2270, P2271, P2272, and P2273 must run



and pass.



* DTCs P0030, P0036, P0053, P0054, P0101, P0102, P0103, P0106, P0107, P0108, P0120, P0121, P0122, P0123, P0131, P0132, P0133,



P0134, P0135, P0137, P0138, P013A, P013B, P013E, P013F, P0140, P0141, P0171, P0172, P0201, P0202, P0203, P0204, P0220, P0222,



P0223, P0300, P0442, P0443, P0446, P0449, P0455, P0496, P1133, P1174, P1516, P2101, P2119, P2135, P2176, P2270, P2271, P2A00 are



not set.



* The ignition 1 voltage is between 10-32 V.



* The learned heater resistance is valid.



* The fuel level is greater than 10 %.



* The engine run time is equal to or greater than 5 min.



* The DTCs run once per ignition cycle when the above conditions are met.



Conditions for Setting the DTC



P0133 or P0153



* The ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is greater than a calibrated value.



* The DTCs set within 60 s when the above condition is met.



P013A or P013C



The ECM detects that the accumulated mass air flow monitored during rich-to-lean transitions between 450-150 mV is greater than 75 grams.



P013B or P013D



The ECM detects that the accumulated mass air flow monitored during lean-to-rich transitions between 350-650 mV is greater than 75 grams.



P013E or P014A



The ECM detects that the O2 sensor voltage has not decreased below 450 mV within 42 grams of accumulated air flow.



P013F or P014B



The ECM detects that the O2 sensor voltage has not increased above 350 mV within 200 grams of accumulated air flow.



P1133 or P1153



* The ECM detects that the HO2S 1 rich-to-lean counts, or the lean-to-rich counts are less than a calibrated value.



* The DTCs set within 60 s when the above condition is met.



Action Taken When the DTC Sets

2010 Cadillac Truck SRX AWD V6-3.0L Page 852

2010 Cadillac Truck SRX AWD V6-3.0L Page 852



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC C0595 02



- Left Front Acceleration Sensor Circuit Short to Ground



DTC C0595 05



- Left Front Acceleration Sensor Circuit High Voltage/Open



DTC C0595 0A



- Left Front Acceleration Sensor Circuit Too Slow Transitions



DTC C0600 02



- Right Front Acceleration Sensor Circuit Short to Ground



DTC C0600 05



- Right Front Acceleration Sensor Circuit High Voltage/Open



DTC C0600 0A



- Right Front Acceleration Sensor Circuit Too Slow Transitions



DTC C0605 02



- Left Rear Acceleration Sensor Circuit Short to Ground



DTC C0605 05



- Left Rear Acceleration Sensor Circuit High Voltage/Open



DTC C0605 0A



- Left Rear Acceleration Sensor Circuit Too Slow Transitions



Diagnostic Fault Information



Circuit/System Description



The suspension control module supplies a 5 V reference voltage and a low reference to each body acceleration sensor. The body acceleration



sensors supply a signal of 0.5-4.5 V to the suspension control module.



Conditions for Running the DTC



System voltage is between 9-16 V

Wednesday, December 2, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 198

2010 Cadillac Truck SRX AWD V6-3.0L Page 198



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptor



DTC B096A 02



- Hazard Lamps Switch Backlight Circuit Short to Ground



Diagnostic Fault Information



Circuit/System Description



The body control module (BCM) supplies a voltage reference through the instrument panel cluster dimming voltage reference circuit to the



instrument panel cluster lamps dimmer switch, which is part of the headlamp switch. When the dimmer switch is placed in a desired brightness



position, reference voltage is applied through the dimmer switch rheostat and the cluster lamps dimmer switch signal circuit to the BCM. The BCM



interprets this voltage signal, then applies a pulse width modulated (PWM) voltage to the LED dimming supply circuit to all related interior lamps,



illuminating them to the desired level of brightness.



Conditions for Running the DTC



The ignition is ON.



Conditions for Setting the DTC



B096A 02



The BCM detects a short to ground on the LED backlight lamp control circuit.



Action Taken When the DTC Sets



The BCM will not dim or illuminate any LED backlighting supplied by the backlight lamp control circuits.



Conditions for Clearing the DTC



* The condition responsible for setting the DTC no longer exists.



* A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.



Reference Information



Schematic Reference



Interior Lights Dimming Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Interior Lights Dimming



Schematics)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)



Description and Operation



Interior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Interior Lighting Systems)



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)

2010 Cadillac Truck SRX AWD V6-3.0L Page 1313

2010 Cadillac Truck SRX AWD V6-3.0L Page 1313



P0346, P0365, P0366, P0390, P0391, P0627, P0628, P0629 are not set.



* The ignition voltage is more than 8 V.



* The engine coolant temperature is between -100 and +65掳C (-148 and +149掳F).



* The low side fuel pressure is more than 0 kPa (0 psi).



* The engine is not running.



* The DTC runs once for each engine start.



Conditions for Setting the DTC



P0089



The high pressure fuel pump actuator command necessary to maintain the desired fuel rail pressure is +/-2.5 MPa (363 psi) of the command



expected by the controller. The condition exists for greater than 5 s.



P00C6



The ECM detects that the fuel pressure is not rising or has fallen beyond acceptable limits during engine cranking.



P228C



The actual fuel rail pressure is 1.5 MPa (218 psi) less than the desired fuel pressure. The condition exists for greater than 5 s.



P228D



The actual fuel rail pressure is 3.6 MPa (522 psi) greater than the desired fuel rail pressure. The condition exists for greater than 5 s.



Action Taken When the DTC Sets



* DTCs P0089 and P00C6 are Type B DTCs.



* DTCs P228C and P228D are Type A DTCs.



* A message center or an indicator displays Reduced Engine Power.



Conditions for Clearing the DTC



* DTCs P0089 and P00C6 are Type B DTCs.



* DTCs P228C and P228D are Type A DTCs.



Diagnostic Aids



* A restricted fuel feed pipe between the fuel feed pipe fuel pressure sensor and the high pressure fuel pump may set a DTC.



* A condition with the fuel tank fuel pump module or fuel pump flow control module may set a DTC.



* A skewed fuel rail pressure sensor, or an intermittent condition in the fuel rail pressure sensor circuits may set a DTC.



* A leaking or restricted fuel injector may set a DTC.



* A short to voltage in the crankshaft position signal circuit may set a DTC.



* A short to voltage in the camshaft position actuator solenoid valve control circuit may set a DTC.



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



Fuel System Description (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Description and Operation/Fuel System



Description)Fuel System Description (LAU or LY7) (See: Powertrain Management/Fuel Delivery and Air Induction/Description and



Operation/Fuel 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)

2010 Cadillac Truck SRX AWD V6-3.0L Page 913

2010 Cadillac Truck SRX AWD V6-3.0L Page 913



DTC C1255 or C1256



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions)provides an overview of each diagnostic category.



DTC Descriptors



DTC C1255 00



- Electronic Control Unit Performance Malfunction



DTC C1256 00



- Control Module Programming Checksum Error Malfunction



Circuit/System Description



When the ignition is turned ON, the microprocessor runs a diagnostic program to detect an internal fault when power up is commanded. If an



internal malfunction is detected, the control module will set a DTC.



Conditions for Running the DTC



Ignition ON



Conditions for Setting the DTC



The control module detects an internal malfunction.



Action Taken When the DTC Sets



Specific subsystems will not function or operate in degraded mode.



Conditions for Clearing the DTC



A current DTC clears when the diagnostic runs and passes.



Reference Information



Schematic Reference



Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)



Description and Operation



ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation)



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)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information



Circuit/System Testing



1. Ignition ON, verify that DTC C056D or C056E is not present in the electronic brake control module (EBCM).

2010 Cadillac Truck SRX AWD V6-3.0L Page 538

2010 Cadillac Truck SRX AWD V6-3.0L Page 538



瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the E14F seat



cushion heating element.



5. If all circuits test normal, replace the K29R rear seat heating control module.



B2430 0B, B2430 0D, or B2430 0E



1. Ignition OFF, disconnect the harness connector at the E14G seat back heating element.



Note: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat unoccupied, then with



the seat occupied.



2. Test for 0.5 - 5 Ohms between terminal A and terminal B.



瀚慖f not within the specified range, replace the E14G seat back heating element.



3. Connect the harness connector at the E14G seat back heating element and disconnect the X2 harness connector at the K29R rear seat heating



control module.



Note: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat unoccupied, then with



the seat occupied.



4. Test for 1 - 7 Ohms between control circuit terminal 5 and control circuit terminal 2.



瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the E14H seat cushion



heating element.



瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the E14H seat



cushion heating element.



5. If all circuits test normal, replace the K29R rear seat heating control module.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Rear Seat Back Cushion Heater Replacement (See: Body and Frame/Seats/Seat Temperature Element/Service and Repair/Rear Seat Back



Cushion Heater Replacement)



* Rear Seat Cushion Heater Replacement (40 Percent Seat) (See: Body and Frame/Seats/Seat Temperature Element/Service and Repair/Rear



Seat Cushion Heater Replacement (40 Percent Seat))Rear Seat Cushion Heater Replacement (60 Percent Seat) (See: Body and



Frame/Seats/Seat Temperature Element/Service and Repair/Rear Seat Cushion Heater Replacement (60 Percent Seat))



* Control Module References (See: Testing and Inspection/Programming and Relearning) for rear seat heating control module replacement,



setup, and programming



With Memory A45



DTC B2425 or B2430 (With Memory A45)



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC B2425 0B



- Driver Seat Cushion Heater Circuit High Current



DTC B2425 0D



- Driver Seat Cushion Heater Circuit High Resistance



DTC B2425 0E



- Driver Seat Cushion Heater Circuit Low Resistance



DTC B2430 0B



- Passenger Seat Cushion Heater Circuit High Current

2010 Cadillac Truck SRX AWD V6-3.0L Page 1230

2010 Cadillac Truck SRX AWD V6-3.0L Page 1230



P0134 or P0154



* The ECM detects that the HO2S 1 voltage is between 350-550 mV.



* The HO2S heater warm-up cycle is complete.



* The DTCs set within 15 s when the above conditions are met.



P0140 or P0160



* The ECM detects that the HO2S 2 voltage is not varying.



* The HO2S heater warm-up cycle is complete.



* The DTCs set within 15 s when the above conditions are met.



Action Taken When the DTC Sets



DTCs P0134, P0140, P0154, and P0160 are Type B DTCs.



Conditions for Clearing the DTC



DTCs P0134, P0140, P0154, and P0160 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)



* Heated Oxygen Sensor Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical



Diagnostic Procedures/Wiring Repairs/Heated Oxygen Sensor 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



1. Ignition ON, observe the DTC information with a scan tool. Verify no B52 HO2S heater DTCs are set.



瀚慖f a B52 HO2S heater DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code



Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).



2. Engine running, observe the appropriate scan tool B52 HO2S voltage parameter. The reading should be within the range of 50-1,050 mV.



3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the



conditions that you observed from the Freeze Frame/Failure Records data.



Circuit/System Testing



Note: All modules must be powered down or misdiagnosis may result.



1. Ignition OFF, disconnect the appropriate B52 HO2S harness connector.



2. Ignition ON, observe the appropriate scan tool HO2S voltage parameter. The parameter should display 1.27 V.



瀚慖f less than the specified range, test the high and low signal circuits for a short to ground. If both signal circuits test normal, replace the



K20 ECM.



3. Ignition ON, test for 2.5-3.0 V between the high signal circuit terminal B and ground.