FORD

Tuesday, June 2, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1065

* Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Bank 1 Sensor 1)

* Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Bank 1 Sensor 2)

* Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Bank 2 Sensor 1)

* Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (LF1) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Bank 2 Sensor 2)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming

P0054

DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 (LF1)

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 P0030

- HO2S Heater Control Circuit Bank 1 Sensor 1

DTC P0036

- HO2S Heater Control Circuit Bank 1 Sensor 2

DTC P0050

- HO2S Heater Control Circuit Bank 2 Sensor 1

DTC P0053

- HO2S Heater Resistance Bank 1 Sensor 1

DTC P0054

- HO2S Heater Resistance Bank 1 Sensor 2

DTC P0056

- HO2S Heater Control Circuit Bank 2 Sensor 2

DTC P0059

- HO2S Heater Resistance Bank 2 Sensor 1

DTC P0060

- HO2S Heater Resistance Bank 2 Sensor 2

DTC P0135

- HO2S Heater Performance Bank 1 Sensor 1

DTC P0141

- HO2S Heater Performance Bank 1 Sensor 2

DTC P0155

- HO2S Heater Performance Bank 2 Sensor 1

DTC P0161

- HO2S Heater Performance Bank 2 Sensor 2

Diagnostic Fault Information

2010 Cadillac Truck SRX AWD V6-3.0L Page 466

B1451 04

Accessory output is not active and an open circuit is detected 20 consecutive times.

Action Taken When the DTC Sets

B1451 02

The accessory output is deactivated when a short to ground is detected. After 100 ms the output is activated again. This happens 3 times and then

the output is deactivated until a new accessory request is received.

B1451 01, B1451 04

No action is taken.

Conditions for Clearing the DTC

* The current DTC will clear when the malfunction is no longer present during a DTC check.

* A history DTC clears after 40 malfunction-free ignition cycles.

Diagnostic Aids

* A short to voltage on the accessory wake-up serial data circuit will keep the vehicle serial data bus awake, which can drain the vehicle's

battery.

* If DTC B1451 02 is set, be sure to test the accessory wake-up serial data circuit for a short to ground between the body control module

(BCM) and each of the modules that receive a signal from the accessory wake-up circuit before replacing the BCM. A short to ground

between the BCM and modules may provide feedback through the BCM to the keyless entry control module and result in the setting of the

DTC.

Reference Information

Schematic Reference

* Body Control System Schematics (See: Body and Frame/Body Control Systems/Diagrams/Electrical Diagrams)

* Power Distribution Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System

Diagram/Power Distribution Schematics)

Connector End View Reference

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

Description and Operation

Power Mode Description and Operation (See: Power and Ground Distribution/Description and Operation/Power Mode)

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 Testing

1. Verify DTC B1330 is not set.

瀚慖f the DTC is set, refer to DTC B1330 (See: B Code Charts/B1330)

2. Ignition OFF, disconnect the X2 harness connector at the K84 keyless entry control module.

3. Verify that a test lamp illuminates between B+ circuit terminal 5 and ground.

瀚慖f the test lamp does not illuminate, test the B+ circuit for an open/high resistance. If the B+ fuse is open, test the B+ circuit for a short to

Monday, June 1, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 363

瀚慖f not the specified value, test the signal circuit terminal 4 for a short to ground. If the circuit tests normal, replace the K39 liftgate control

module.

4. Install a 3 A fused jumper wire between the signal circuit terminal 4 and ground. Verify the scan tool Liftgate Front Control Switch

parameter is Active.

瀚慖f not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the

K39 liftgate control module.

5. If all circuits test normal, test or replace the S45B liftgate control switch-interior.

Component Testing

1. Ignition OFF, disconnect the harness connector at the S45B liftgate control switch-interior.

2. Test for the values listed below between the signal terminal 3 and the ground terminal 1.

* 600-650 ohm in the Off position

* 125k-140k ohm in the 3/4 position

* 400k-415k ohm in the Max position

瀚慖f not within the specified ranges, replace the S45B liftgate control switch-interior.

3. Test for infinite resistance between the signal terminal 4 and the ground terminal 1 with the switch open.

瀚慖f not the specified value, replace the S45B liftgate control switch-interior.

4. Test for less than 3 ohm between the signal terminal 4 and the ground terminal 1 with the switch closed.

瀚慖f greater than the specified range, replace the S45B liftgate control switch-interior.

Repair Instructions

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

* Liftgate Actuator Control Switch Replacement (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Trunk / Liftgate

Motor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for the liftgate control module replacement, setup

and programming

B396D

Liftgate Interior Release Open/Close Switch Malfunction - DTC B396C or B396D

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 B396C 08

- Liftgate Mode Switch Circuit Performance Signal Invalid

DTC B396D 02

- Front Liftgate Actuator Switch Circuit Short To Ground

Diagnostic Fault Information

2010 Cadillac Truck SRX AWD V6-3.0L Page 22

2010 Cadillac Truck SRX AWD V6-3.0L Page 1349

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 527

motor. The module supplies each sensor with a 12 V reference circuit and a low side signal circuit. During seat motor operation, the hall effect

position sensor provides a determined number of pulse signals for every revolution of the motor shaft. The scan tool displays these pulse signals as

counts that range from 0 - 65,535. The module counts the feedback pulses from each sensor to determine seat position and end of travel limits for

each of the seat motors. High scan tool count values indicate forward or upward seat positions while low count values indicate rearward or

downward seat positions.

Conditions for Running the DTC

* DTC B1325 must not be present.

* Module battery voltage must be between 9 - 16 V.

Conditions for Setting the DTC

The seat memory control module does not detect position sensor movement or pulse signals while the adjuster motor is active. The following

conditions will set this DTC:

B1825 01, B2355 01, B2365 01, or B2375 01

The seat memory control module detects a short to battery on the sensor signal circuit.

B1825 06, B2355 06, B2365 06, or B2375 06

The seat memory control module detects a short to ground or an open on the sensor signal circuit.

Action Taken When the DTC Sets

The seat memory control module disables the memory recall and easy exit/entry action commands of the motor monitored by the sensor. The motor

will respond to manual positioning commands.

Conditions for Clearing the DTC

* The current DTC clears when the fault is no longer present and the power mode changes to OFF then back to ACC or RUN.

* The history DTC will clear after 40 consecutive fault-free ignition cycles have occurred.

Reference Information

Schematic Reference

Driver Seat Schematics (See: Body and Frame/Seats/Diagrams/Electrical Diagrams/Driver Seat Schematics)

Connector End View Reference

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

Description and Operation

Memory Seats Description and Operation (See: Body and Frame/Seats/Description and Operation/Memory Seats)

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 OFF, disconnect the harness connector at the appropriate driver seat motor listed below for which the DTC set:

* M50 seat front vertical motor

* M55 seat rear vertical motor

* M51 seat horizontal motor

* M56 seat back recline motor

2. Ignition ON, test for B+ between the 12 V reference circuit terminal 4 and ground.

2010 Cadillac Truck SRX AWD V6-3.0L Page 774

- Left Rear Wheel Speed Sensor Circuit Not Plausible

DTC C0050 06

- Right Rear Wheel Speed Sensor Circuit Low Voltage/Open

DTC C0050 0F

- Right Rear Wheel Speed Sensor Circuit Signal Erratic

DTC C0050 18

- Right Rear Wheel Speed Sensor Circuit Low Signal Amplitude

DTC C0050 5A

- Right Rear Wheel Speed Sensor Circuit Not Plausible

Diagnostic Fault Information

Circuit/System Description

The wheel speeds are detected by active wheel speed sensors and encoder rings. The encoder ring consists of permanent magnets. Each wheel

speed sensor receives 12 V reference voltages from the electronic brake control module (EBCM). The wheel speed sensor produces changing

current between 7-14 mA on the EBCM signal circuit. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the

actual wheel speed.

Conditions for Running the DTC

C0035 06 - C0050 06

Ignition ON

C0035 0F - C0050 0F

* Ignition ON

* Vehicle speed is greater than 35 km/h (22 mph)

C0035 18 - C0050 18

* Ignition ON

* Vehicle speed is greater than 10 km/h (6 mph)

C0035 5A - C0050 5A

* Ignition ON

* Vehicle speed is greater than 20 km/h (13 mph)

Conditions for Setting the DTC