Antilock Brake System with Traction Control System & Stability Control System Cadillac CTS II

Fastener Tightening Specifications

Scheme 1

Scheme 2

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The wheel speed sensor receives ignition voltage from the electronic brake control module (EBCM) and provides a DC square wave signal back to the module. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed.

C0035 02 and 05-C0050 02 and 05

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.

C0035 18-C0050 18

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.
3. No other wheel speed circuit DTCs are set.
4. The brake pedal is not pressed.
5. Two or three other wheel speeds are greater than 0 km/h.

C0035 0F-C0050 0F

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.
3. The brake pedal is not pressed.
4. A DTC is not set for the other wheel speed circuit on the same axle.

C0035 02-C0050 02

1. A short to ground, open/high resistance is detected on the wheel speed sensor signal circuit.
2. Wheel speed sensor power supply is less than 7.6 volts.

C0035 05-C0050 05

A short to voltage, short to ground or an open/high resistance is detected on the signal circuit.

1. An erratic signal output of the wheel speed sensor is detected 3 times in 200 milliseconds.
2. The EBCM detects a change in wheel speed that exceeds 20 km/h (12 mph) between two 10 millisecond wheel speed samples. This must be detected 3 times in 200 milliseconds.
3. A missing wheel speed sensor signal.

Actions Taken when the DTC Sets

1. The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle.
2. A driver information center message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

1. The condition for the DTC is no longer present.
2. Operate the vehicle at speeds greater than 15 km/h (10 mph) to complete the self test, and the EBCM will turn off the ABS indicator.
3. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Diagnostic Aids

1. Inspect the back of the wheel bearing on the encoder surface for metal debris that could cause an erratic reading with the sensor. Do not use a magnet to clean the debris, or damage to the encoder ring may occur.
2. If 2 or more wheel speed sensors are inoperative diagnose each wheel speed sensor individually.

If the customer comments that the ABS indicator is ON only during moist environmental conditions: rain, snow, vehicle wash, etc., inspect the wheel speed sensor wiring for signs of water intrusion. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using the following procedure

1. Spray the suspected area with a 5 percent saltwater solution. To create a 5 percent saltwater solution, add 2 teaspoons of salt to 8 fl oz of water (10 g of salt to 200 ml of water).
2. Test drive the vehicle over various road surfaces: bumps, turns, etc., above 40 km/h (25 mph) for at least 30 seconds.
3. Rinse the area thoroughly when completed.

Reference Information

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Observe the scan tool Wheel Speed Sensor parameter. The reading should be the same speed on all sensors when driving in a straight line at a speed greater than 20 km/h (13 mph).

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Ignition ON, test for less than 1 V between the ignition voltage circuit terminal of the appropriate sensor listed below and ground. Left front sensor circuit terminal 29 Right front sensor circuit terminal 6 Left rear sensor circuit terminal 5 Right rear sensor circuit terminal 2 If greater than the specified range, test the ignition voltage circuit for a short to voltage.
3. Test for less than 1 V between the signal circuit terminal of the appropriate sensor listed below and ground. Left front sensor circuit terminal 28 Right front sensor circuit terminal 17 Left rear sensor circuit terminal 4 Right rear sensor circuit terminal 3 If greater than the specified range, test the signal circuit for a short to voltage.
4. Ignition OFF, test for infinite resistance between the ignition voltage circuit terminal of the appropriate sensor circuit listed below and ground. Left front sensor circuit terminal 29 Right front sensor circuit terminal 6 Left rear sensor circuit terminal 5 Right rear sensor circuit terminal 2 If less than the specified value, test the ignition voltage circuit for a short to ground.
5. Test for infinite resistance between the following signal circuit terminal of the appropriate sensor circuit listed below and ground. Left front sensor circuit terminal 28 Right front sensor circuit terminal 17 Left rear sensor circuit terminal 4 Right rear sensor circuit terminal 3 If less than the specified value, test the signal circuit for a short to ground.
6. Ignition OFF, disconnect the harness connector at the appropriate wheel speed sensor.
7. Test for less than 2 ohms between the appropriate ignition voltage circuit terminals listed below. Left front sensor circuit terminal 29 at the EBCM harness connector and terminal 1 at the wheel speed sensor harness connector. Right front sensor circuit terminal 6 at the EBCM harness connector and terminal 1 at the wheel speed sensor harness connector. Left rear sensor circuit terminal 5 at the EBCM harness connector and terminal 1 at the wheel speed sensor harness connector. Right rear sensor circuit terminal 2 at the EBCM harness connector and terminal 1 at the wheel speed sensor harness connector. If greater than the specified range, test the ignition voltage circuit for an open or high resistance.
8. Test for less than 2 ohms between the appropriate signal circuit terminals listed below. Left front sensor circuit terminal 28 at the EBCM harness connector and terminal 2 at the wheel speed sensor harness connector. Right front sensor circuit terminal 17 at the EBCM harness connector and terminal 2 at the wheel speed sensor harness connector. Left rear sensor circuit terminal 4 at the EBCM harness connector and terminal 2 at the wheel speed sensor harness connector. Right rear sensor circuit terminal 3 at the EBCM harness connector and terminal 2 at the wheel speed sensor harness connector. If greater than the specified range, test the signal circuit for an open or high resistance.
9. If all circuits test normal, replace the appropriate wheel speed sensor. If the DTC resets, replace the EBCM.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Front Wheel Speed Sensor Replacement (RWD)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Front Wheel Speed Sensor Replacement (AWD)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «Rear Wheel Speed Sensor Replacement»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
3. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The pump motor is an integral part of the brake pressure modulator valve (BPMV), while the pump motor relay is integral to the electronic brake control module (EBCM). The pump motor relay is not engaged during normal system operation. When the antilock brake system (ABS) or traction control system (TCS) operation is required the EBCM activates the pump motor relay and turns the pump motor ON.

C0010 03

1. Ignition ON.
2. System and ignition voltage is above 9 volts.
3. The system enable relay is ON.

C0010 04

1. Ignition ON.
2. System and ignition voltage is above 9 volts.
3. The system enable relay is ON.
4. The pump motor has been commanded OFF for 2 seconds.

C0010 61

1. Ignition ON.
2. The system enable relay is ON.
3. The pump motor has been commanded ON, OFF and ON again.

C0110 03

The EBCM detects an open in the pump motor driver or supply when the motor is commanded on and if the motor feedback is below 50% of the system voltage for 10 msec.

C0110 04

The EBCM detects an open in the pump motor circuit when the feedback voltage remains greater than 0.75 volt for more than 50 msec.

C0110 61

The pump motor continues to rotate briefly after activation creating a feedback voltage. The EBCM sets the code if the measured feedback voltage indicates an open circuit, binding or stalled pump motor.

1. The EBCM disables the antilock brake system (ABS), traction control system and StabiliTrak for the duration of the ignition cycle.
2. A driver information center message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. Operate the vehicle at speeds greater than 15 km/h (10 mph) to complete the self test, and the EBCM will turn off the ABS indicator.
3. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 5 ohms between the ground circuits listed below and ground. Terminal 25 Terminal 1 If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit Terminal 13 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the brake pressure modulator valve and verify DTC does not reset. If the DTC resets replace the EBCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) uses input from the brake pressure sensor for more accurate control during a Vehicle Stability Enhancement System (VSES) event. The brake pressure sensor is part of the brake pressure modulator valve (BPMV).

Conditions for Running the DTC

1. Ignition ON.
2. Ignition voltage is greater than 8 volts.

Conditions for Setting the DTC

1. Brake signal does not correlate to pressure signal.
2. Signal is erratic and changes faster than physically allowed.

1. The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for setting the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, verify that DTC C0131 is not set.

1. If DTC is set, replace the BPMV. If the DTC resets, replace the EBCM

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) detects inputs from the brake pressure sensor, vehicle speed, and a serial data message from the body control module (BCM) that the brake pedal is applied. When the vehicle is stopping the EBCM monitors for the brake pedal is pressed, with the brake pressure increasing and the vehicle is slowing down, or when the vehicle is accelerating, the brake pedal is not pressed and brake pressure is not increasing.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.

1. The EBCM detects the vehicle speed greater than 8 km/h (5 mph), the brake pedal is Applied for 1 minute, and brake pressure is not increasing.
2. The EBCM detects brake pedal is Released and the vehicle speed is decreasing while the brake pressure is increasing.

1. The EBCM disables the traction control and StabiliTrak for the duration of the ignition cycle.
2. A driver information center message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

The DTC C0161 5A can be set if the brake pedal is applied while accelerating.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Note. Diagnose all other brake light DTCs or Symptoms prior to performing this diagnostic procedure.

1. Verify that DTC C0277 or C0278 is not set. If any of the DTCs are set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) .
2. Ignition ON, observe the scan tool EBCM BPP parameter while applying and releasing the brake pedal. The reading should change between Applied and Released. If the parameter does not change between applied and release, replace the EBCM.
3. Replace the brake pressure modulator valve assembly.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) or «Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) monitors traction control system (TCS) activation in order to calculate an estimate of the EBCM solenoid valve temperatures. In most cases high solenoid valve temperatures are caused by extended TCS activation. If the EBCM calculates that the solenoid valve temperatures are too high, the EBCM will temporarily suspend the TCS function until the solenoid valves cool.

1. Ignition ON.
2. Ignition voltage is greater than 9 volts.

The estimated solenoid coil temperature reaches 220°C (428°F).

1. The EBCM disables the traction control for the duration of the fault.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Most occurrences of this DTC are caused by excessive TCS activation or braking.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Note. Allow brakes to cool down before performing test.

1. With a scan tool clear the DTC.
2. Test drive the vehicle under normal braking conditions and without causing TCS or ABS activation. Verify DTC C0179 is not set. If the DTC is set, replace the EBCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The longitudinal/ lateral accelerometer and the yaw rate sensors are combined into one sensor. The sensors communicate through the serial data network to the EBCM along with other control modules to perform stability control. The vehicle stability enhancement system uses the longitudinal/lateral accelerometer input when calculating the desired yaw rate.

The ignition switch is in the ON position.

DTC C0561 71 is not set as a result of a lateral acceleration sensor circuit or internal fault during the current ignition cycle.

C0186 09

The lateral accelerometer combination changes by more than 550 meters/second per second.

C0186 0F

The lateral accelerometer combination sensor is not mounted properly.

C0186 55

The lateral accelerometer combination signal does not change and is locked on a constant value.

C0186 3B

The lateral accelerometer combination sensor fails an internal self test.

C0186 1A

The lateral accelerometer combination bias exceeds 3 meters/second.

C0186 5A

The lateral acceleration sensor signal is not plausible with the yaw rate sensor signal, steering angle sensor signal and vehicle speed.

C0186 75

The lateral accelerometer combination signal above allowable range.

C0196 09

The yaw rate combination sensor changes by more than 455 degrees/second per second.

C0196 0F

The yaw rate combination sensor is not mounted properly.

C0196 3B

The yaw rate combination sensor fails an internal self test.

C0196 39

The yaw rate combination sensor has an internal electronic failure.

C0196 1A

The yaw rate combination bias exceeds 5.7 degrees/second.

C0196 5A

The yaw rate sensor signal is not plausible with the lateral acceleration sensor signal, steering angle sensor signal and vehicle speed.

C0196 55

The yaw rate combination signal does not change and is locked on a constant value.

C0196 75

The yaw rate combination signal above allowable range.

C0287 0F

The longitudinal combination sensor signal is momentarily implausible or discontinuous.

C0287 3B

The longitudinal combination sensor fails an internal test.

C0287 55

The longitudinal combination sensor detects fewer than the expected number of transitions.

C0287 5A

The longitudinal combination sensor fails two or more input parameters for plausibility.

Action Taken When the DTC Sets

One or more of the following actions may occur

1. The vehicle stability enhancement system (VSES) and Traction control system (TCS) is disabled.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM automatically clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, observe the scan tool yaw rate and longitudinal/ lateral accelerometer sensor parameter. The reading should be the same on all sensors when driving in a straight line at a constant speed greater than 20 km/h (13 mph), and will vary as the vehicle changes direction.

1. Verify that DTC U1826 or U1827 and not set. If DTCs are set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) .
2. Verify the yaw/lateral accelerometer sensor is mounted properly. If not mounted properly, refer to «Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
3. Ignition OFF, disconnect the harness connector at the yaw/lateral accelerometer sensor.
4. Ignition OFF, wait 1 minute, test for less than 10 ohms between the low reference circuit terminal 6 and ground. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuits test normal, replace the EBCM.
5. Ignition ON, test for B+ between the ignition voltage circuit terminal 1 and ground. If not within the specified range, test the ignition voltage circuit for a short to ground or open/high resistance. If the circuits test normal, replace the EBCM.
6. If all circuits test normal, replace the yaw/lateral accelerometer sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The solenoid relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.
3. The solenoid relay is commanded ON.

1. The EBCM detects an open in the battery positive voltage circuit to the solenoid valve relay.
2. The EBCM detects a stuck open solenoid valve relay or an open circuit between the solenoid valve relay and solenoids.

1. The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground. Terminal 25 Terminal 1 If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground. Terminal 38 Terminal 13 If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) and the engine control module (ECM) simultaneously control the traction control. The EBCM sends a serial data message to the ECM requesting torque reduction. When certain ECM DTCs are set, the ECM will not be able to perform the torque reduction for traction control. A serial data message is sent to the EBCM indicating that traction control is not allowed.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.

The ECM diagnoses a condition preventing the engine control portion of the traction control function and sends a serial data message to the EBCM indicating that torque reduction is not allowed. The ECM will typically set other DTCs and the EBCM will set DTC C0242.

1. The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
2. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
3. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)
4. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)

Scan Tool Reference

Control Module References for scan tool information

Verify that no DTCs are set in the ECM.

1. If DTCs are set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) .

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

As the wheel spins, the wheel speed sensor (WSS) produces an alternating current (AC) signal. The electronic brake control module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.
3. Vehicle must be moving at a speed less than 14.5 km/h (9 mph).
4. No wheel speed sensor faults exist.
5. Brake is not applied.
6. Vehicle is not cornering.
7. No wheel spinning is detected.

Wheel speed differences between one wheel and the others is greater than 25 percent.

1. The EBCM inhabits Antilock brake system (ABS), traction control system (TCS) and vehicle stability enhancement system (VSES).
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

1. Faulty wheel speed sensor will not set this DTC.
2. A vehicle using a space saver spare will not set this code.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Inspect for one tire that has improper air pressure or improper size.

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) supplies a ignition voltage to the yaw rate sensor/lateral acceleration sensor, and the steering angle sensor. The sensor supply voltage is monitored via an internal feedback circuit to the EBCM microprocessor.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.

The EBCM detects a short to ground or an open/high resistance on the sensor supply voltage

1. The EBCM disables StabiliTrak for the duration of the ignition cycle.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, verify that DTCs U1826, or U1827 are not set. If any of the DTCs are set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list)
2. Ignition OFF, disconnect the yaw/lateral acceleration sensor connector.
3. Ignition OFF wait 1 minute, test for less than 10 ohms between the low reference circuit terminal 6 and ground. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuits test normal, replace the EBCM.
4. Ignition ON, test for B+ between the ignition circuit terminal 1 and ground. If less than the specified value, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
5. If all circuits test normal, replace the yaw/lateral accelerometer sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) must be programmed using SPS.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.

The EBCM has not been programmed.

Actions Taken When DTC Sets

A DIC message and/or a warning indicator may be displayed.

1. The condition for the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
2. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
3. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information.

Verify that DTC C0558 is not set.

1. If the DTC is set, program the EBCM. If the DTC resets, replace the EBCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for EBCM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) receives serial data messages from the body control module (BCM), engine control module (ECM), instrument panel cluster (IPC), and the transmission control module (TCM) which are needed to perform antilock brake system (ABS), vehicle stability enhancement system (VSES), or traction control system (TCS) functions.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.

The EBCM receives an invalid serial data message from another module.

1. The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for setting the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

This DTC indicates that there are no problems in the EBCM. The BCM, ECM, IPC, and the TCM should be checked for a possible fault.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
2. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
3. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)
4. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)

Scan Tool Reference

Control Module References for scan tool information

Verify that no DTCs are set in the BCM, ECM, IPC and the TCM.

1. If DTCs are set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) .

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The electronic brake control module (EBCM) receives CAN message inputs from the steering wheel position sensor identifying the position and direction of the steering wheel rotation.

1. Ignition ON.
2. Ignition voltage is greater than 10 volts.
3. The vehicle speed is greater than 15 Km/h (9 mph).

The calculated steering angle from the steering angle sensor does not correlate with the steering angle calculated from the yaw rate sensor.

1. The EBCM disables StabiliTrak for the duration of the ignition cycle.
2. A DIC message and/or a warning indicator may be displayed.

1. The condition for setting the DTC is no longer present.
2. The EBCM clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

The car should not pull in either direction causing the steering wheel to be OFF center while driving straight on a level surface.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, verify that DTCs U1826, U1827, or C0292 are not set. If any of the DTCs are set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list)
2. Perform the steering angle sensor calibration procedure. Refer to «Steering Angle Sensor Centering»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system__steering-angle-sensor-centering) .
3. With a scan tool, clear the DTC.
4. Operate the vehicle within the conditions for running the DTC. Verify the DTC does not reset. If the DTC resets, replace the steering angle sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Steering Angle Sensor Replacement»(/cadillac/cts/ii-2007-2014/remont/steering-column-switches/#steering-wheel-steering-column)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for EBCM replacement, setup, and programing

Symptoms - Antilock Brake System

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) , before using the symptom tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to «ABS Description and Operation»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system__abs-description-and-operation) .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the antilock brake system (ABS). Refer to «Checking Aftermarket Accessories»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__checking-aftermarket-accessories) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
3. Inspect the master cylinder reservoir for the proper brake fluid level.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «ABS Indicator Malfunction»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)
2. «StabiliTrak Indicator Malfunction»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system)

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The instrument panel cluster (IPC) illuminates the antilock brake system (ABS) indicator during the IPC bulb check or when the electronic brake control module (EBCM) detects a fault and sends a serial data message to the IPC commanding the indicator ON.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, with a scan tool command the IPC display test ON and OFF. The ABS warning indicator should turn ON and OFF. If the ABS warning indicator does not turn ON and OFF, replace the IPC.
2. Replace the EBCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for IPC replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The instrument panel cluster (IPC) illuminates the StabiliTrak indicator during the IPC bulb check or when the electronic brake control module (EBCM) detects a fault and sends a serial data message to the IPC commanding the indicator ON.

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, with a scan tool command the IPC display test ON and OFF. The StabiliTrak indicator should turn ON and OFF. If the indicator does not turn ON and OFF, replace the IPC.
2. Observe the scan tool body control module (BCM) Traction Control Switch parameter while pressing and releasing the traction control switch. The reading should change between Active and Inactive.

1. Ignition OFF, disconnect the harness connector at the Radio/HVAC Control.
2. Test for less than 1 ohm between the ground circuit terminal 16 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool Traction Control Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 14 for a short to ground. If the circuit tests normal, replace the BCM.
4. Install a 3A fused jumper wire between the signal circuit terminal 14 and the ground circuit terminal 16. Verify the scan tool Traction Control Switch parameter is Active. If 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 BCM.
5. If all circuits test normal, test or replace the traction control switch.

Component Testing

1. Ignition OFF, disconnect the harness connector at the traction control switch.
2. Test for infinite resistance between the signal terminal 16 and the ground terminal 14 with the switch in the open position. If not the specified value, replace the traction control switch.
3. Test for less than 3 ohms between the signal terminal 16 and the ground terminal 14 with the switch in the closed position. If greater than the specified range, replace the traction control switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Instrument Panel Center Compartment Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup, and programming

Antilock Brake System Automated Bleed

Note. Before performing the ABS Automated Bleed Procedure, first perform a pressure bleed of the base brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) . The automated bleed procedure is recommended when one of the following conditions exist: Base brake system bleeding does not achieve the desired pedal height or feel Extreme loss of brake fluid has occurred Air ingestion is suspected in the secondary circuits of the brake modulator assembly

The ABS Automated Bleed Procedure uses a scan tool to cycle the system solenoid valves and run the pump in order to purge any air from the secondary circuits. These circuits are normally closed off, and are only opened during system initialization at vehicle start up and during ABS operation. The automated bleed procedure opens these secondary circuits and allows any air trapped in these circuits to flow out toward the brake corners.

Performing the Automated Bleed Procedure

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
2. Remove all four tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
3. Inspect the brake system for leaks and visual damage. Refer to «Symptoms - Hydraulic Brakes»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system__symptoms-hydraulic-brakes) . Repair or replace components as needed.
4. Lower the vehicle.
5. Inspect the battery state of charge. Refer to «Battery Inspection/Test»(/cadillac/cts/ii-2007-2014/remont/charging-system/#battery-charging-system-and-starting-system) .
6. Install a scan tool.
7. Turn the ignition ON, with the engine OFF.
8. With the scan tool, establish communications with the ABS system. Select Special Functions. Select Automated Bleed from the Special Functions menu.
9. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
10. Following the directions given on the scan tool, pressure bleed the base brake system. Refer to «Hydraulic Brake System Bleeding (Manual)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) or «Hydraulic Brake System Bleeding (Pressure)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) .
11. Follow the scan tool directions until the desired brake pedal height is achieved.
12. If the bleed procedure is aborted, a malfunction exists. Perform the following steps before resuming the bleed procedure: If a DTC is detected, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) , and diagnose the appropriate DTC. If the brake pedal feels spongy, perform the conventional brake bleed procedure again. Refer to «Hydraulic Brake System Bleeding (Manual)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) «Hydraulic Brake System Bleeding (Pressure)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) .
13. When the desired pedal height is achieved, press the brake pedal to inspect for firmness.
14. Lower the vehicle.
15. Remove the scan tool.
16. Install the tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
17. Inspect the brake fluid level. Refer to «Master Cylinder Reservoir Filling»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system__master-cylinder-reservoir-filling) .
18. Road test the vehicle while inspecting that the pedal remains high and firm.

Steering Angle Sensor Centering

The steering angle sensor does not require centering often. Centering of the steering angle sensor might be required after certain service procedures are performed. Some of these procedures are as follows

1. Steering gear replacement
2. Steering column replacement
3. Steering angle sensor replacement
4. Intermediate shaft replacement
5. Electronic brake control module (EBCM) replacement
6. Collision or other physical damage

The steering angle sensor centering procedure can be completed with a scan tool using the following steps

1. Using the steering wheel, align the front wheels forward.
2. Set the transmission in the PARK position.
3. Turn the ignition switch ON, with the engine OFF.
4. Clear any DTCs that may be set.
5. Select Steering Angle Sensor Centering in the VSCM Special Functions list.
6. Follow the scan tool directions to complete the centering procedure.

Removal Procedure

1. Place the ignition switch in the OFF position.
2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
3. Remove the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
4. Remove the washer solvent container fasteners and position the washer solvent container aside to access the electronic brake control module (EBCM). Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
5. Thoroughly clean the area around the EBCM of all dirt and debris.
6. Release the EBCM electrical connector by pressing the retaining tab and rotating the locking lever forward.
7. Remove the EBCM screws (1).
8. Separate the EBCM (1) from the brake pressure modulator valve (BPMV).

Installation Procedure

1. Clean the sealing surfaces of the BPMV and the EBCM.
2. Install the EBCM (1) to the BPMV.
3. Install the EBCM screws (1).
4. Tighten the EBCM screws in the sequence shown (1-4) to 5 N.m (44 lb in).
5. Connect the EBCM electrical connector.
6. Position the washer solvent container and install the fasteners. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
7. Install the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
8. Lower the vehicle.
9. If installing a new EBCM, program the EBCM. Refer to «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) .
10. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) .

1. Place the ignition switch in the OFF position.
2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
3. Remove the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
4. Remove the washer solvent container fasteners and position the washer solvent container aside to access the electronic brake control module (EBCM). Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
5. Thoroughly clean the area around the EBCM of all dirt and debris.
6. Release the EBCM electrical connector by pressing the retaining tab and rotating the locking lever forward.
7. Remove the EBCM screws (1).
8. Separate the EBCM (1) from the brake pressure modulator valve (BPMV).

1. Clean the sealing surfaces of the BPMV and the EBCM.
2. Install the EBCM (1) to the BPMV.
3. Install the EBCM screws (1) and tighten in a cross pattern to 5 N.m (44 lb in).
4. Connect the EBCM electrical connector.
5. Position the washer solvent container and install the fasteners. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
6. Install the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
7. Lower the vehicle.
8. If installing a new EBCM, program the EBCM. Refer to «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) .
9. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) .

1. Place the ignition switch in the OFF position.
2. Remove the RH front compartment sight shield. Refer to «Front Compartment Sight Shields Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bolted-exterior-body-panels-and-closures) .
3. Thoroughly clean the area around the EBCM of all dirt and debris.
4. Disconnect the secondary brake pressure modulator valve (BPMV) inlet brake pipe fitting (1). Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
5. Disconnect the primary BPMV inlet brake pipe fitting (1). Cap the brake pipe fitting and plug the BPMV inlet port to prevent brake fluid loss and contamination.
6. Remove the electronic brake control module (EBCM). Refer to «Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
7. Disconnect the LF brake pipe fitting (1). Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
8. Disconnect the RR brake pipe fitting (1). Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
9. Disconnect the LR brake pipe fitting (1). Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
10. Disconnect the RF brake pipe fitting (1). Cap the brake pipe fitting and plug the BPMV outlet port to prevent brake fluid loss and contamination.
11. Remove the BPMV bolt (1).
12. Remove the BPMV (1).

1. Install the BPMV (1).
2. Install the BPMV bolt (1) and tighten to 12 N.m (106 lb in).
3. Connect the RF brake pipe fitting (1) and tighten to 20 N.m (15 lb ft).
4. Connect the LR brake pipe fitting (1) and tighten to 20 N.m (15 lb ft).
5. Connect the RR brake pipe fitting (1) and tighten to 20 N.m (15 lb ft).
6. Connect the LF brake pipe fitting (1) and tighten to 20 N.m (15 lb ft).
7. Install the electronic brake control module (EBCM). Refer to «Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (CTS)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
8. Connect the primary BPMV inlet brake pipe fitting (1) and tighten to 32 N.m (24 lb ft).
9. Connect the secondary BPMV inlet brake pipe fitting (1) and tighten to 32 N.m (24 lb ft).
10. Install the RH front compartment sight shield. Refer to «Front Compartment Sight Shields Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bolted-exterior-body-panels-and-closures) .
11. Bleed the hydraulic brake system. Refer to «Hydraulic Brake System Bleeding (Manual)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) or «Hydraulic Brake System Bleeding (Pressure)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) .
12. Perform the «Antilock Brake System Automated Bleed»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system__antilock-brake-system-automated-bleed) .
13. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) .

1. Place the ignition switch in the OFF position.
2. Remove the front compartment sight shield. Refer to «Front Compartment Sight Shields Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bolted-exterior-body-panels-and-closures) .
3. Release the brake clips from the vehicle front frame (1).
4. Thoroughly clean the area around the electronic brake control module (EBCM) and the brake pressure modulator valve (BPMV) of all dirt and debris.
5. Disconnect the left front (1), master cylinder primary (2), and master cylinder secondary (3) brake pipe fittings from the BPMV. Cap the brake pipe fittings and plug the BPMV inlet and outlet ports to prevent brake fluid loss and contamination.
6. Release the brake pipe clips (1) from the right side engine compartment side rail.
7. Disconnect the right rear (1), left rear (2), and the right front (3) brake pipe fittings from the BPMV. Cap the brake pipe fittings and plug the BPMV outlet ports to prevent brake fluid loss and contamination.
8. Remove the BPMV assembly bracket bolt (1).
9. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
10. Remove the front air deflector. Refer to «Front Air Deflector Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bumpers-and-fascia) .
11. Remove the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
12. Remove the washer solvent container fasteners and position the washer solvent container aside. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
13. Disconnect the electronic brake control module (EBCM) electrical connector
14. Remove the BPMV bracket nuts (1).
15. Remove the BPMV and bracket assembly (1).
16. Remove the BPMV bolt (1).
17. Remove the BPMV (1) from the bracket.
18. If installing a new BPMV, remove the EBCM. Refer to «Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .

1. If installing a new BPMV, install the EBCM. Refer to «Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (CTS-V)»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system) .
2. Install the BPMV (1) to the bracket.
3. Install the BPMV bolt (1) and tighten to 12 N.m (106 lb in).
4. Install the BPMV and bracket assembly (1).
5. Install the BPMV bracket nuts (1) and tighten to 12 N.m (106 lb in).
6. Connect the electronic brake control module (EBCM) electrical connector
7. Position the washer solver container and install the fasteners. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
8. Install the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
9. Install the front air deflector. Refer to «Front Air Deflector Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bumpers-and-fascia) .
10. Lower the vehicle.
11. Install the BPMV assembly bracket bolt (1) and tighten to 12 N.m (106 lb in).
12. Connect the right rear (1), left rear (2), and the right front (3) brake pipe fittings from the BPMV and tighten to 20 N.m (15 lb ft).
13. Install the brake pipes to the brake pipe clips (1) on the right side engine compartment side rail.
14. Connect the left front (1) brake pipe fitting to the BPMV and tighten to 20 N.m (15 lb ft).
15. Connect the master cylinder primary (2), and master cylinder secondary (3) brake pipe fittings to the BPMV and tighten to 32 N.m (24 lb ft).
16. Install the brake pipes to the brake pipe clips on the vehicle front frame (1).
17. Install the front compartment sight shield. Refer to «Front Compartment Sight Shields Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bolted-exterior-body-panels-and-closures) .
18. Bleed the hydraulic brake system. Refer to «Hydraulic Brake System Bleeding (Manual)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) or «Hydraulic Brake System Bleeding (Pressure)»(/cadillac/cts/ii-2007-2014/remont/mechanical-hydraulic/#hydraulic-brake-system) .
19. Perform the «Antilock Brake System Automated Bleed»(/cadillac/cts/ii-2007-2014/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system__antilock-brake-system-automated-bleed) .
20. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) .

1. Place the ignition switch in the OFF position.
2. Remove the front compartment sight shield. Refer to «Front Compartment Sight Shields Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bolted-exterior-body-panels-and-closures) .
3. Release the brake clips from the vehicle front frame (1).
4. Release the brake pipe clips (1) from the right side engine compartment side rail.
5. Remove the brake pressure modulator valve (BPMV) assembly bracket bolt (1).
6. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
7. Remove the front air deflector. Refer to «Front Air Deflector Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bumpers-and-fascia) .
8. Remove the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
9. Remove the washer solvent container fasteners and position the washer solvent container aside. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
10. Remove the BPMV bracket nuts (1).
11. Carefully lift the BPMV assembly from the bracket studs.
12. Carefully lift the BPMV and bracket assembly (1) from the studs on the vehicle frame to access the BPMV bolt. Support the BPMV with heavy mechanics wire or equivalent.
13. Remove the BPMV bolt (1).
14. Remove the BPMV bracket from the BPMV (1).
15. Inspect the BPMV bracket insulator for damage and replace, if necessary.

1. Install the BPMV (1) to the bracket.
2. Install the BPMV bolt (1) and tighten to 12 N.m (106 lb in).
3. Install the BPMV and bracket assembly (1).
4. Install the BPMV bracket nuts (1) and tighten to 12 N.m (106 lb in).
5. Position the washer solver container and install the fasteners. Refer to «Windshield Washer Solvent Container Replacement (With CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) or «Windshield Washer Solvent Container Replacement (Without CE4)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system__windshield-washer-solvent-container-replacement-without) .
6. Install the front air deflector. Refer to «Front Air Deflector Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bumpers-and-fascia) .
7. Install the right front wheelhouse liner. Refer to «Front Wheelhouse Liner Replacement»(/cadillac/cts/ii-2007-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
8. Lower the vehicle.
9. Install the BPMV assembly bracket bolt (1) and tighten to 12 N.m (106 lb in).
10. Install the brake pipes to the brake pipe clips (1) on the right side engine compartment side rail.
11. Install the brake pipes to the brake pipe clips on the vehicle front frame (1).
12. Install the front compartment sight shield. Refer to «Front Compartment Sight Shields Replacement»(/cadillac/cts/ii-2007-2014/remont/exterior-body-panels/#bolted-exterior-body-panels-and-closures) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
3. Disconnect the wheel speed sensor electrical connector (1).
4. Remove the wheel speed sensor wire harness clips (1) from the vehicle frame.
5. Remove the wheel speed sensor wire harness clip (1) from the steering knuckle.
6. Thoroughly clean the wheel speed sensor mounting area of the steering knuckle of any dirt and debris.
7. Remove the wheel speed sensor bolt (1).
8. Remove the wheel speed sensor (1) from the steering knuckle.

1. Install the wheel speed sensor (1) to the steering knuckle.
2. Install the wheel speed sensor bolt (1) and tighten to 9 N.m (80 lb in).
3. Install the wheel speed sensor wire harness clip (1) to the steering knuckle.
4. Install the wheel speed sensor wire harness clips (1) to the vehicle frame.
5. Connect the wheel speed sensor electrical connector (1).
6. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
3. Disconnect the wheel speed sensor electrical connector (1).
4. Remove the wheel speed sensor wire harness clips (2) from the stabilizer bar bracket.
5. Remove the wheel speed sensor wire harness clip (1) from the steering knuckle.
6. Thoroughly clean the wheel speed sensor mounting area of the steering knuckle of any dirt and debris.
7. Remove the wheel speed sensor bolt (1).
8. Remove the wheel speed sensor (1) from the steering knuckle.

1. Install the wheel speed sensor (1) to the steering knuckle.
2. Install the wheel speed sensor bolt (1) and tighten to 9 N.m (80 lb in).
3. Install the wheel speed sensor wire harness clip (1) to the steering knuckle.
4. Connect the wheel speed sensor electrical connector (1).
5. Install the wheel speed sensor wire harness clips (2) to the stabilizer bar bracket.
6. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#general-information) .
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
3. Remove the wheel speed sensor wire harness clips (1) from the upper control arm and vehicle frame.
4. Disconnect the wheel speed sensor electrical connector (2).
5. Thoroughly clean the wheel speed sensor mounting area of the suspension knuckle of any dirt and debris.
6. Remove the wheel speed sensor bolt (1) and the wheel speed sensor.

1. Install the wheel speed sensor and bolt (1) to the suspension knuckle and tighten to 9 N.m (80 lb in).
2. Install the wheel speed sensor wire harness clips (1) to the upper control arm and vehicle frame.
3. Connect the wheel speed sensor electrical connector (2).
4. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/cadillac/cts/ii-2007-2014/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .

Circuit Description

Optimum vehicle stability enhancement system (VSES) function is dependent on many variables. The characteristics of a specific vehicle, that affect vehicle handling or input signals to the electronic brake control module (EBCM), ultimately determine how the VSES operates. The basic EBCM software must be fine tuned as the vehicle is operated. This logic is referred to as adaptive learning.

Adaptive learning is accomplished by maintaining a yaw rate sensor/lateral accelerometer data table in the EBCM memory. As the vehicle is operated, the table is populated with data that is later referenced, and sometimes modified, to allow the EBCM to provide the best possible stability control for the specific vehicle.

1. Turn OFF the ignition.
2. Disconnect the yaw rate sensor/lateral accelerometer harness connector.
3. Start the engine.
4. Apply firm and steady pressure to the brake pedal for at least 10 seconds.
5. Turn OFF the ignition.
6. Reconnect the yaw rate sensor/lateral accelerometer harness connector.
7. Turn ON the ignition and use the scan tool to clear the DTCs.

1. Turn the ignition switch to the OFF position.
2. Move the RF seat to the rearmost position.
3. Carefully lift the floor carpet at the seam.
4. Disconnect the yaw rate sensor and lateral accelerometer electrical connector.
5. Remove the yaw rate sensor and lateral accelerometer nuts (1).
6. Remove the yaw rate sensor and lateral accelerometer bolt (1).
7. Remove the yaw rate sensor and lateral accelerometer (1).

1. Install the yaw rate sensor and lateral accelerometer (1).
2. Install the yaw rate sensor and lateral accelerometer bolt (1) and tighten to 9 N.m (80 lb in).
3. Install the yaw rate sensor and lateral accelerometer nuts (1) and tighten to 9 N.m (80 lb in).
4. Connect the yaw rate sensor and lateral accelerometer electrical connector.
5. Position the carpet to the floor.
6. Install a scan tool.
7. Using the special functions menu on the scan tool, reset the yaw rate sensor.
8. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) .

ABS Description and Operation

This vehicle is equipped with the TRW 440 V antilock braking system.

The vehicle is equipped with the following braking systems

1. Antilock Brake System (ABS)
2. Engine Drag Control (EDC)
3. Dynamic Rear Proportioning (DRP)
4. Traction Control System (TCS)
5. Vehicle Electronic Stability (VES) (W/JL4)

The following components are involved in the operation of the above systems

1. Electronic brake control module (EBCM)-The EBCM controls the system functions and detects failures. The EBCM contains the following components: System relay-The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor. Vent tube-The vent tube, located in the EBCM connector, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.
2. Brake pressure modulator valve (BPMV)-The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other. IMPORTANT: There is a rubber isolator located under the BPMV and on the mounting studs. The rubber isolators protect the BPMV and the EBCM from vehicle vibrations. The BPMV contains the following components: Pump motor Inlet valves (one per wheel) Outlet valves (one per wheel) Master cylinder isolation valves (one per drive wheel) Prime valves (one per drive wheel)
3. Wheel speed sensors (WSS)-EBCM sends a 12-volt reference voltage signal to each wheel speed sensor. As the wheel spins, the wheel speed sensor produces a square wave DC signal voltage. The wheel speed sensor increase the signal frequency as the wheel speed increases, but does not increase the signal amplitude.
4. Traction control switch-The TCS is manually disabled or enabled using the traction control switch.
5. The EBCM uses the brake apply sensors as an indication that the brake pedal is applied.
6. Lateral accelerometer sensor (w/JL4)-The EBCM uses the lateral accelerometer sensor as an indication of the lateral acceleration of the vehicle.
7. Yaw rate sensor (w/JL4)-The EBCM uses the yaw rate sensor as an indication of the yaw rate of the vehicle.
8. Steering wheel position sensor (SWPS) (w/JL4)-The EBCM uses the SWPS as an indication of the position and rotation of the steering wheel.

Initialization Sequence

The EBCM performs 1 initialization test each ignition cycle. The initialization of the EBCM occurs when 1 set of the following conditions occur

Both of the following conditions occur

1. The EBCM detects that there is a minimum of 500 RPM from the ECM via a serial data message.
2. The brake apply sensor switch is not applied.

OR

Both of the following conditions occur

1. The vehicle speed is greater than 16 km/h (10 mph).
2. The brake apply sensor switch is applied.

The initialization sequence may also be commanded with a scan tool.

The initialization sequence cycles each solenoid valve and the pump motor, as well as the necessary relays, for approximately 1.5 seconds to check component operation. The EBCM sets a DTC if any error is detected. The initialization sequence may be heard and felt while it is taking place, and is considered part of normal system operation.

The EBCM defines a drive cycle as the completion of the initialization sequence.

When wheel slip is detected during a brake application, the ABS enters antilock mode. During antilock braking, hydraulic pressure in the individual wheel circuits is controlled to prevent any wheel from slipping. A separate hydraulic line and specific solenoid valves are provided for each wheel. The ABS can decrease, hold, or increase hydraulic pressure to each wheel brake. The ABS cannot, however, increase hydraulic pressure above the amount which is transmitted by the master cylinder during braking.

During antilock braking, a series of rapid pulsations is felt in the brake pedal. These pulsations are caused by the rapid changes in position of the individual solenoid valves as the EBCM responds to wheel speed sensor inputs and attempts to prevent wheel slip. These pedal pulsations are present only during antilock braking and stop when normal braking is resumed or when the vehicle comes to a stop. A ticking or popping noise may also be heard as the solenoid valves cycle rapidly. During antilock braking on dry pavement, intermittent chirping noises may be heard as the tires approach slipping. These noises and pedal pulsations are considered normal during antilock operation.

Vehicles equipped with ABS may be stopped by applying normal force to the brake pedal. Brake pedal operation during normal braking is no different than that of previous non-ABS systems. Maintaining a constant force on the brake pedal provides the shortest stopping distance while maintaining vehicle stability.

Pressure Hold

The EBCM closes the inlet valve and keeps the outlet valve closed in order to isolate the system when wheel slip occurs. This holds the pressure steady on the brake so that the hydraulic pressure does not increase or decrease.

Pressure Decrease

The EBCM decreases the pressure to individual wheels during a deceleration when wheel slip occurs. The inlet valve is closed and the outlet valve is opened. The excess fluid is stored in the accumulator until the return pump can return the fluid to the master cylinder.

Pressure Increase

The EBCM increases the pressure to individual wheels during a deceleration in order to reduce the speed of the wheel. The inlet valve is opened and the outlet valve is closed. The increased pressure is delivered from the master cylinder.

Dynamic Rear Proportioning (DRP)

The dynamic rear proportioning (DRP) is a control system that replaces the hydraulic proportioning function of the mechanical proportioning valve in the base brake system. The DRP control system is part of the operation software in the EBCM. The DRP uses active control with existing ABS in order to regulate the vehicle's rear brake pressure.

The red brake warning indicator is illuminated when the dynamic rear proportioning function is disabled.

Engine Drag Control (EDC)

When the driver releases the throttle, and the drag from the engine overcomes the frictional force between the tire and the road, EDC becomes active.

The EBCM sends a torque request signal to the ECM, which increases the torque at the wheels. This stabilizes the wheels by reducing the slip at the driven wheels.

When EDC is active, the driven wheels are controlled to a target below the non-driven wheels.

Traction Control System (TCS)

When drive wheel slip is noted while the brake is not applied, the electronic brake control module (EBCM) will enter traction control mode.

First, the EBCM requests the engine control module (ECM) to reduce the amount of torque to the drive wheels via the serial data. The ECM reduces torque to the drive wheels by retarding spark timing and turning off fuel injectors. The ECM reports the amount torque delivered to the drive wheels via the serial data circuit.

If the engine torque reduction does not eliminate drive wheel slip, the EBCM will actively apply the drive wheel brakes. During traction control braking, hydraulic pressure in each drive wheel circuit is controlled to prevent the drive wheels from slipping. The master cylinder isolation valve closes in order to isolate the master cylinder from the rest of the hydraulic system. The prime valve then opens in order to allow the pump to accumulate brake fluid in order to build hydraulic pressure for braking. The drive wheel inlet and outlet solenoid valves then open and close in order to perform the following functions

1. Pressure hold
2. Pressure increase
3. Pressure decrease

ABS Indicator

The instrument panel cluster (IPC) illuminates the Antilock Brake System (ABS) indicator when the following occurs

1. The electronic brake control module (EBCM) detects a malfunction with the antilock brake system. The IPC receives a serial data message from the EBCM requesting illumination.
2. The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds.
3. The IPC detects a loss of serial data communications with the EBCM.

TRAC OFF

The instrument panel cluster (IPC) illuminates the TRAC OFF indicator when the following occurs

1. The electronic brake control module (EBCM) inhibits the traction control system due to a malfunction in the traction control system. The IPC receives a serial data message from the EBCM requesting illumination.
2. The body control module (BCM) detects that the traction control switch has been pressed (signal circuit is low). The BCM sends a serial data message to the EBCM in order to disable traction control. The IPC receives a serial data message from the EBCM requesting illumination. The BCM sends a serial data message to the radio in order to activate an audible warning.

Vehicle Electronic Stability (VES)

The vehicle electronic stability enhancement system (VES) adds an additional level of vehicle control to the EBCM.

Yaw rate is the rate of rotation about the vehicle's vertical axis. The VES is activated when the EBCM determines that the desired yaw rate does not match the actual yaw rate as measured by the yaw rate sensor.

The desired yaw rate is calculated from the following parameters

1. The position of the steering wheel
2. The speed of the vehicle
3. The lateral, or sideways acceleration of the vehicle

The difference between the desired yaw rate and the actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes too large, the EBCM attempts to correct the vehicle's yaw motion by applying differential braking to the appropriate wheel. The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error.

The VES activations generally occur during aggressive driving, in turns or on bumpy roads without much use of the accelerator pedal. When braking during VES activation, the pedal pulsations feel different than the ABS pedal pulsations. The brake pedal pulsates at a higher frequency during VES activation.

Special Tools

Illustration Tool Number/ Description J 35616 GM-Approved Terminal Test Kit J 39700 100-Pin Breakout Box J 39700-300 ABS Breakout Box Adapter J 39700-530 Breakout Box Adapter

Scheme 3

Scheme 4

Scheme 5

See also:
• Diagnostic System Check - Vehicle
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• Component Connector End Views
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs
• Control Module References
• Diagnostic Repair Verification
• Diagnostic Trouble Code (DTC) List - Vehicle
• Steering Angle Sensor Replacement
• Checking Aftermarket Accessories
• Instrument Panel Center Compartment Replacement
• Brake Fluid Irritant Warning
• Brake Fluid Effects on Paint and Electrical Components Caution
• Hydraulic Brake System Bleeding (Manual)
• Lifting and Jacking the Vehicle
• Tire and Wheel Removal and Installation
• Symptoms - Hydraulic Brakes
• Battery Inspection/Test
• Master Cylinder Reservoir Filling
• Front Wheelhouse Liner Replacement
• Windshield Washer Solvent Container Replacement (With CE4)
• Windshield Washer Solvent Container Replacement (Without CE4)
• Fastener Caution
• Front Compartment Sight Shields Replacement
• Front Air Deflector Replacement
• Brake Dust Warning
• DTC C0035-C0050
• ABS Description and Operation
• Steering Angle Sensor Centering
• Antilock Brake System Automated Bleed