Wednesday, September 2, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 150

2010 Cadillac Truck SRX AWD V6-3.0L Page 150



Conditions for Clearing the DTC



The condition for setting the DTC is no longer present.



Reference Information



Schematic Reference



HVAC Schematics (See: Heating and Air Conditioning/Diagrams/Electrical Diagrams)



Connector End View Reference



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



Description and Operation



Automatic HVAC Description and Operation (See: Heating and Air Conditioning/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)



Circuit/System Verification



1. Verify that DTC B1395 03 or B1395 07 is not present.



瀚慖f DTC is present, refer to Windshield Temperature And Inside Moisture Sensor Power Supply Malfunction.



2. Verify that DTC B048C 02 or B048C 05 is not present.



瀚慖f DTC is present, refer to Humidity Sensor Humidity Circuit Malfunction.



3. Verify that DTC B048F 02 or B048F 05 is not present.



瀚慖f DTC is present, refer to Humidity Sensor Temperature Circuit Malfunction.



4. Verify that DTC B018A 02 or B018A 05 is not present.



瀚慖f DTC is present, refer to Windshield Temperature Sensor Circuit Malfunction.



5. Measure actual temperature using a thermometer at the windshield temperature and inside moisture sensor. Compare this value to the scan



tool Passenger Compartment Humidity Sensor Temperature parameter. The measured temperature should be within 5掳C (9掳F) difference of



parameter value.



瀚慖f not within the specified range, replace the B160 Windshield Temperature and Inside Moisture Sensor.



6. Measure actual temperature using a thermometer at the windshield temperature and inside moisture sensor. Compare this value to the scan



tool Windshield Temperature parameter. The measured temperature should be within 5掳C (9掳F) difference of parameter value.



瀚慖f not within the specified range, replace the B160 Windshield Temperature and Inside Moisture Sensor.



Circuit/System Testing



Windshield Temperature and Inside Moisture Sensor Power Supply Malfunction



1. Ignition OFF, disconnect the harness connector at the B160 Windshield Temperature and Inside Moisture Sensor.



2. Test for less than 10 ohm between the ground circuit terminal 3 and ground.



瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.



3. Ignition ON, test for 4.8-5.2 V between the ground circuit terminal 3 and the reference voltage circuit terminal 1.



瀚慖f less than the specified range, test the reference voltage circuit for a short to ground or open/high resistance. If the circuit tests normal,

Tuesday, September 1, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 381

2010 Cadillac Truck SRX AWD V6-3.0L Page 381



瀚慖f greater than the specified value, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the K33 HVAC



Control Module.



3. Ignition ON, test for 4.8-5.2 V between the signal circuit terminal A and ground.



瀚慖f less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the



K33 HVAC Control Module.



瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K33 HVAC Control



Module.



4. If all circuits test normal, replace the temperature sensor.



Repair Instructions



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



* HVAC Component Replacement Reference (See: Heating and Air Conditioning/Service and Repair/Removal and Replacement)



* Control Module References (See: Testing and Inspection/Programming and Relearning)



B0514



DTC B0173, B0178, B0509, B0514, B0519, B3583, or B3933



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 B0173 02



- Upper Left Duct Air Temperature Sensor Circuit Short to Ground



DTC B0173 05



- Upper Left Duct Air Temperature Sensor Circuit High Voltage/Open



DTC B0178 02



- Lower Left Duct Air Temperature Sensor Circuit Short to Ground



DTC B0178 05



- Lower Left Duct Air Temperature Sensor Circuit High Voltage/Open



DTC B0509 02



- Upper Right Duct Air Temperature Sensor Circuit Short to Ground



DTC B0509 05



- Upper Right Duct Air Temperature Sensor Circuit High Voltage/Open



DTC B0514 02



- Lower Right Duct Air Temperature Sensor Circuit Short to Ground



DTC B0514 05



- Lower Right Duct Air Temperature Sensor Circuit High Voltage/Open



DTC B0519 02



- Rear Upper Duct Air Temperature Sensor Circuit Short to Ground



DTC B0519 05



- Rear Upper Duct Air Temperature Sensor Circuit High Voltage/Open



DTC B3583 02



- Rear Lower Duct Air Temperature Sensor Circuit Short to Ground



DTC B3583 05



- Rear Lower Duct Air Temperature Sensor Circuit High Voltage/Open

2010 Cadillac Truck SRX AWD V6-3.0L Page 278

2010 Cadillac Truck SRX AWD V6-3.0L Page 278



Repair Instructions



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



* Front Side Door Lock Replacement (See: Body and Frame/Locks/Door Locks/Service and Repair/Front Side Door Lock Replacement)



* Rear Side Door Lock Replacement (See: Body and Frame/Locks/Door Locks/Service and Repair/Rear Side Door Lock Replacement)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM or keyless entry control module



replacement, setup and programming



B251E



DTC B251A-B251F



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 B251A 01



- All Door Unlatch Circuit Short to Battery



DTC B251A 02



- All Door Unlatch Circuit Short to Ground



DTC B251B 02



- Driver Door Unlatch High Control Circuit Short to Ground



DTC B251B 04



- Driver Door Unlatch High Control Circuit Open



DTC B251C 04



- Passenger Door Unlatch High Control Circuit Open



DTC B251D 04



- Left Rear Door Unlatch High Control Circuit Open



DTC B251E 04



- Right Rear Door Unlatch High Control Circuit Open



Diagnostic Fault Information

2010 Cadillac Truck SRX AWD V6-3.0L Page 1371

2010 Cadillac Truck SRX AWD V6-3.0L Page 1371



DTC P0203



- Cylinder 3 Injector Control Circuit



DTC P0204



- Cylinder 4 Injector Control Circuit



DTC P0205



- Cylinder 5 Injector Control Circuit



DTC P0206



- Cylinder 6 Injector Control Circuit



DTC P0261



- Cylinder 1 Injector Control Circuit Low Voltage



DTC P0262



- Cylinder 1 Injector Control Circuit High Voltage



DTC P0264



- Cylinder 2 Injector Control Circuit Low Voltage



DTC P0265



- Cylinder 2 Injector Control Circuit High Voltage



DTC P0267



- Cylinder 3 Injector Control Circuit Low Voltage



DTC P0268



- Cylinder 3 Injector Control Circuit High Voltage



DTC P0270



- Cylinder 4 Injector Control Circuit Low Voltage



DTC P0271



- Cylinder 4 Injector Control Circuit High Voltage



DTC P0273



- Cylinder 5 Injector Control Circuit Low Voltage



DTC P0274



- Cylinder 5 Injector Control Circuit High Voltage



DTC P0276



- Cylinder 6 Injector Control Circuit Low Voltage



DTC P0277



- Cylinder 6 Injector Control Circuit High Voltage



Diagnostic Fault Information

2010 Cadillac Truck SRX AWD V6-3.0L Page 26

2010 Cadillac Truck SRX AWD V6-3.0L Page 26

2010 Cadillac Truck SRX AWD V6-3.0L Page 334

2010 Cadillac Truck SRX AWD V6-3.0L Page 334



* DTC B310E



* DTC B310F



If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC



resets, replace the keyless entry transmitter.



Repair Instructions



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



Replacing Keys (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Service and Repair/Replacing Keys)



B310F



DTC B310D-B310F



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 B310D 00



- Keyless Entry Transmitter 6 Battery



DTC B310E 00



- Keyless Entry Transmitter 7 Battery



DTC B310F 00



- Keyless Entry Transmitter 8 Battery



Circuit/System Description



With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control



door lock receiver, along with the commanded keyless entry function. The remote control door lock receiver sends this to the body control module



(BCM) to perform the requested function.



Conditions for Running the DTC



A keyless transmitter button is pressed.



Conditions for Setting the DTC



3 consecutive low battery signals are received from the same transmitter.



Action Taken When the DTC Sets



The keyless entry system is inoperative.



Conditions for Clearing the DTC



The DTC is cleared when a normal transmitter voltage signal is received from the transmitter that set the DTC.



Reference Information



Schematic Reference



Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry



Transmitter/Diagrams/Electrical Diagrams)



Connector End View Reference



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



Description and Operation



Keyless Entry System Description and Operation (without ATH) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless

2010 Cadillac Truck SRX AWD V6-3.0L Page 885

2010 Cadillac Truck SRX AWD V6-3.0L Page 885



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 Descriptor



DTC C1207 00



- Left Front Wheel Speed Sensor Circuit High Input Malfunction



DTC C1208 00



- Right Front Wheel Speed Sensor Circuit High Input Malfunction



DTC C1209 00



- Left Rear Wheel Speed Sensor Circuit High Input Malfunction



DTC C1210 00



- Right Rear Wheel Speed Sensor Circuit High Input Malfunction



DTC C1221 00



- Left Front Wheel Speed Sensor Circuit Malfunction



DTC C1222 00



- Right Front Wheel Speed Sensor Circuit Malfunction



DTC C1223 00



- Left Rear Wheel Speed Sensor Circuit Malfunction



DTC C1224 00



- Right Rear Wheel Speed Sensor Circuit Malfunction



DTC C1225 00



- Left Front Wheel Speed Sensor Circuit Performance Malfunction



DTC C1226 00



- Right Front Wheel Speed Sensor Circuit Performance Malfunction



DTC C1227 00



- Left Rear Wheel Speed Sensor Circuit Performance Malfunction



DTC C1228 00



- Right Rear Wheel Speed Sensor Circuit Performance Malfunction



DTC C1232 00



- Left Front Wheel Speed Sensor Circuit Low Input Malfunction



DTC C1233 00



- Right Front Wheel Speed Sensor Circuit Low Input Malfunction



DTC C1234 00



- Left Rear Wheel Speed Sensor Circuit Low Input Malfunction



DTC C1235 00



- Right Rear Wheel Speed Sensor Circuit Low Input Malfunction



Circuit/System Description



The wheel speeds are detected by active wheel speed sensors. Each wheel speed sensor receives a 12 V reference voltage from the electronic brake



control module (EBCM) and provides an alternating current square wave signal to the EBCM. As the wheel spins, the EBCM uses the frequency of



the square wave signal to calculate the wheel speed. The EBCM sends the wheel speed information as a high speed controller area network (CAN)



serial data message.



Conditions for Running the DTC