Object Detection System: Diagnosis Cadillac SRX II facelift

Diagnostic Code Index

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The control module has detected a malfunction.

Action Taken When the DTC Sets

1. The Side Blind Zone and Rear Cross Traffic Alert Systems will not function.
2. The DIC will display "Service Side Detection System".

Conditions for Clearing the DTC

1. A current DTC clears when the malfunction is no longer present.
2. A history DTC clears when the control module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

Diagnostic Aids

If DTC B094B 58 or B094C 58 is set, check for anything that can interfere with the radar signal. Verify area in front of radar is clean of mud, ice, snow, etc. Also verify the fascia panels in front of the radar are damage-free and not obstructed by any add-on accessories such as emblems, etc.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

DTC Descriptor

For symptom byte information, refer to Symptom Byte List .

Ignition ON.

The B218R Side Object Sensor Module - Right has detected an internal malfunction.

1. The side object sensor system is disabled..
2. The DIC will display "Service Side Detection System".

1. A current DTC clears when the malfunction is no longer present.
2. A history DTC clears when the control module ignition cycle counter reaches the reset threshold of 40, without a repeat of the malfunction.

1. The modules are not identical and cannot be swapped from side to side.
2. This DTC may be stored as a history DTC without affecting the operation of the B218R Side Object Sensor Module - Right.
3. Do not replace B218R Side Object Sensor Module - Right based only on DTC B094C being set in history.
4. If DTC B094C is set as current, replace the B218R Side Object Sensor Module - Right.
5. B218R Side Object Sensor Module - Right communicates on a private communication data bus with the B218L Side Object Sensor Module - Left. If programming is needed for module replacement, you must program B218L Side Object Sensor Module - Left which will then in turn program B218R Side Object Sensor Module - Right.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Diagnostic Fault Information

1. Engine running.
2. The Side blind zone alert is active from speeds of 10 km/h (6.2 MPH) up to 140 km/h (87 MPH).

B094D 02

The module has detected a short to ground in the outside rearview mirror - driver circuit.

B094D 01

The module has detected a short to voltage in the outside rearview mirror - driver circuit.

B094E 02

The module has detected a short to ground in the outside rearview mirror - passenger circuit.

B094E 01

The module has detected a short to voltage in the outside rearview mirror - passenger circuit.

The side blind zone alert system is inoperative and Service Side Detection System is displayed on the Driver Information Center.

The condition for setting the DTC is no longer present.

Circuit/System Testing

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the appropriate A9 Outside Rearview Mirror. It may take up to 2 minutes for all vehicle systems to power down. X510 - Driver Door Harness to Outside Rearview Mirror X610 - Passenger Door Harness to Outside Rearview Mirror
2. Test for less than 10 ohms between the ground circuit terminal 9 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON, connect a test lamp between the control circuit terminal 8 and the ground circuit terminal 9.
4. Verify the test lamp turns ON and OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the appropriate B218 Side Object Sensor Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the B218 Side Object Sensor Module. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the B218 Side Object Sensor Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, replace the B218 Side Object Sensor Module. If the test lamp turns ON and OFF
5. Test or replace the A9 Outside Rearview Mirror Glass.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Ignition ON
2. The park assist is activated. The activation takes place through putting in the reverse gear or through operating the park assist switch.

B0954 01, B0955 01, B0956 01, or B0957 01

The front and rear parking assist control module has detected the voltage at the sensor circuit is greater than 11.5 V or the object sensor is not grounded.

B0954 06, B0955 06, B0956 06, or B0957 06

The front and rear parking assist control module has detected the voltage at the sensor circuit is less than 0.5 V.

B0954 08, B0955 08, B0956 08, or B0957 08

The front and rear parking assist control module has received an invalid signal.

B0954 21, B0955 21, B0956 21, or B0957 21

The object sensor determines no change in the position of an object while the vehicle is in motion.

B0954 3A, B0955 3A, B0956 3A, or B0957 3A

The front and rear parking assist control module determines the wrong sensor type is installed.

1. The parking assist is disabled.
2. The driver information center displays SERVICE PARK ASSIST.

The condition for setting the DTC is no longer present.

1. Ignition OFF, scan tool disconnected, disconnect the harness at the appropriate B78 Front Object Sensor. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the low reference circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF, disconnect the harness connector X3 at the K41 Front and Rear Parking Assist Control Module. Test for less than 2 ohms in the low reference circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms replace the K41 Front and Rear Parking Assist Control Module. If less than 10 ohms
3. Ignition ON.
4. Test for 7.5-9.5 V between the 8 V reference circuit terminal 1 and ground. If less than 7.5 V Ignition OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module. Test for infinite resistance between the 8 V reference circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the 8 V reference circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Front and Rear Parking Assist Control Module. If greater than 9.5 V Ignition OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON. Test for less than 1 V between the 8 V reference circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, replace the K41 Front and Rear Parking Assist Control Module. If between 7.5-9.5 V
5. Ignition OFF, remove appropriate B78 Front Object Sensor and switch locations with another properly operating sensor. Connect harness connector at both sensors. Ignition ON.
6. Verify the DTC is set for the new location in which the malfunctioning sensor is installed. If DTC set for the new location Replace the malfunctioning B78 Front Object Sensor. If DTC set for the original location Ignition OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Ignition OFF. Test for infinite resistance between the signal circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Front and Rear Parking Assist Control Module. If no DTC set
7. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

DTC Descriptors

For symptom byte information, refer to Symptom Byte List .

1. Ignition ON
2. The parking assist is activated. The activation takes place through putting in the reverse gear or through operating the park assist switch.

B0958 01, B0959 01, B0960 01, or B0961 01

The front and rear parking assist control module has detected the voltage at the sensor circuit is greater than 11.5 V or the object sensor is not grounded.

B0958 06, B0959 06, B0960 06, or B0961 06

The front and rear parking assist control module has detected the voltage at the sensor circuit less than 0.5 V.

B0958 08, B0959 08, B0960 08, or B0961 08

The front and rear parking assist control module has received an invalid signal.

B0958 21, B0959 21, B0960 21, or B0961 21

The object sensor determines no change in the position of an object while the vehicle is in motion.

B0958 3A, B0959 3A, B0960 3A, or B0961 3A

The front and rear parking assist control module determines the wrong sensor type is installed.

1. The parking assist is disabled.
2. The driver information center displays SERVICE PARK ASSIST.

The condition for setting the DTC is no longer present.

1. Ignition OFF, scan tool disconnected, disconnect the harness at the appropriate B78 Rear Object Sensor. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the low reference circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF, disconnect the harness connector X2 at the K41 Front and Rear Parking Assist Control Module. Test for less than 2 ohms in the low reference circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms replace the K41 Front and Rear Parking Assist Control Module. If less than 10 ohms
3. Ignition ON.
4. Test for 7.5-9.5 V between the 8 V reference circuit terminal 1 and ground. If less than 7.5 V Ignition OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module. Test for infinite resistance between the 8 V reference circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the 8 V reference circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Front and Rear Parking Assist Control Module. If greater than 9.5 V Ignition OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON. Test for less than 1 V between the 8 V reference circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, replace the K41 Front and Rear Parking Assist Control Module. If between 7.5-9.5 V
5. Ignition OFF, remove the appropriate B78 Rear Object Sensor and switch locations with another properly operating sensor. Connect harness connector at both sensors. Ignition ON.
6. Verify the DTC is set for the new location in which the malfunctioning sensor is installed. If DTC set for the new location Replace the malfunctioning B78 Rear Object Sensor. If DTC set for the original location Ignition OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Ignition OFF. Test for infinite resistance between the signal circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Front and Rear Parking Assist Control Module. If no DTC set
7. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Ignition ON
2. The parking assist is activated. The activation takes place by putting in the reverse gear while the system is enabled.

B0967 02

The front and rear parking assist control module has detected a short to ground.

B0968 01

The front and rear parking assist control module has detected a short to battery.

B0968 06

The front and rear parking assist control module has detected a short to ground or open.

B0968 0B

The active safety control module has detected a short to ground or open in the control circuit.

Without UGN

1. The parking assist is disabled.
2. The driver information center displays "Service Park Assist".

With UGN

1. The driver assist system is disabled.
2. The driver information center displays "Service Driver Assist".

The condition for setting the DTC is no longer present.

Parking Assist Switch Malfunction (without UGN)

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Park Assist Switch parameter is Inactive. If not Inactive Ignition OFF, disconnect the harness connector X1 at the K41 Front and Rear Parking Assist Control Module. Test for infinite resistance between the signal circuit terminal 8 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K41 Front and Rear Parking Assist Control Module. If Inactive
5. Install a 3 A fused jumper wire between the signal circuit terminal 5 and ground.
6. Verify the scan tool Park Assist Switch parameter is Active. If not Active Ignition OFF, disconnect the harness connector X1 at the K41 Front and Rear Parking Assist Control Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Front and Rear Parking Assist Control Module. If Active
7. Test or replace the S48E Multifunction Switch - Center Console.

Parking Assist Switch Indicator Malfunction (without UGN)

1. Ignition OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. Ignition ON, interior dimming set to full bright.
2. Test for 1.6-3.6 V between the control circuit terminal 3 and ground. If less than 1.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If greater than 3.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If between 1.6-3.6 V
3. Ignition OFF, disconnect the harness connector at the K124 Active Safety Control Module, ignition ON.
4. Test for less than 1 V between the signal circuit terminal 2 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
5. Ignition OFF.
6. Test for infinite resistance between the signal circuit terminal 2 and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
7. Test for less than 5 ohms between the K124 Active Safety Control Module terminal 2 and S48E Multifunction Switch - Center Console circuit terminal 6. If greater than 5 ohms Repair the open/high resistance in the circuit. If less than 5 ohms
8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the Park Assist Switch Indicator turns ON and OFF when cycling the parking assist switch. If indicator does not turn on and off Replace K41 Front and Rear Parking Assist Control Module. If indicator turns on and of f
10. All OK.

Parking Assist Switch Malfunction (with UGN)

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Park Assist Switch parameter is Inactive. If not Inactive Ignition OFF, disconnect the harness connector X1 at the K124 Active Safety Control Module. Test for infinite resistance between the signal circuit terminal 11 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K124 Active Safety Control Module. If Inactive
5. Install a 3 A fused jumper wire between the signal circuit terminal 5 and ground.
6. Verify the scan tool Park Assist Switch parameter is Active. If not Active Ignition OFF, disconnect the harness connector at the K124 Active Safety Control Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K124 Active Safety Control Module. If Active
7. Test or replace the S48E Multifunction Switch - Center Console.

Parking Assist Switch Indicator Malfunction (with UGN)

1. Ignition OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. Ignition ON, interior dimming set to full bright.
2. Test for 1.6-3.6 V between the control circuit terminal 3 and ground. If less than 1.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K9 Body Control Module. If greater than 3.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, replace the K9 Body Control Module. If between 1.6-3.6 V
3. Ignition OFF, disconnect the harness connector at the K124 Active Safety Control Module, ignition ON.
4. Test for less than 1 V between the signal circuit terminal 2 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
5. Ignition OFF.
6. Test for infinite resistance between the signal circuit terminal 2 and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
7. Test for less than 5 ohms between the K124 Active Safety Control Module terminal 2 and S48E Multifunction Switch - Center Console circuit terminal 6. If greater than 5 ohms Repair the open/high resistance in the circuit. If less than 5 ohms
8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the Park Assist Switch Indicator turns ON and OFF when cycling the parking assist switch. If indicator does not turn on and off Replace K124 Active Safety Control Module. If indicator turns on and of f
10. All OK.

Component Testing

1. Ignition OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console.
2. Test for infinite resistance between the signal terminal 5 and the ground terminal 2 with the switch in the open position. If less than infinite resistance Replace the S48E Multifunction Switch - Center Console. If infinite resistance
3. Test for less than 10 ohms between the signal terminal 5 and the ground terminal 2 with the switch in the closed position. If 10 ohms or greater Replace the S48E Multifunction Switch - Center Console. If less than 10 ohms
4. All OK

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Ignition ON.

B0987 01

The frontview camera module detects a short to voltage in the control circuit.

B0987 06

The frontview camera module detects a short to ground or an open/high resistance in the control circuit.

B0987 0B

The active safety control module detects high current in the control circuit.

Without UGN

1. Lane departure warning is disabled
2. The driver information center displays "Service Front Camera".

With UGN

1. The driver assist system is disabled.
2. The driver information center displays "Service Driver Assist".

The condition for setting the DTC is no longer present.

Without UGN

1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console, ignition ON.
2. Test for 1.7-3.6 V between the dimming control circuit terminal 3 and ground. NOTE: Verify interior lighting dimming is turned all the way up. If less than 1.7 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If greater than 3.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If between 1.7-3.6 V
3. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.
4. Test for less than 1 V between the signal circuit terminal 10 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
5. Ignition OFF.
6. Test for infinite resistance between the signal circuit terminal 10 and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
7. Test for less than 5 ohms between the K109 Frontview Camera Module terminal 10 and S48E Multifunction Switch - Center Console circuit terminal 7. If greater than 5 ohms Repair the open/high resistance in the circuit. If less than 5 ohms
8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the lane departure switch Indicator turns ON and OFF when cycling the S48E Multi-Function Switch - Center Console. If indicator does not turn on and off Replace K109 Frontview Camera Module. If indicator turns on and of f
10. All OK.

With UGN

1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console, ignition ON. NOTE: Verify interior lighting dimming is turned all the way up.
2. Test for 1.6-3.6 V between the dimming control circuit terminal 3 and ground. If less than 1.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If greater than 3.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If between 1.6-3.6 V
3. Ignition OFF, disconnect the X1 harness connector at the K124 Active Safety Control Module, ignition ON.
4. Test for less than 1 V between the signal circuit terminal 3 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
5. Ignition OFF.
6. Test for infinite resistance between the signal circuit terminal 3 and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
7. Test for less than 5 ohms between the K124 Active Safety Control Module terminal 3 and S48E Multifunction Switch - Center Console circuit terminal 8. If greater than 5 ohms Repair the open/high resistance in the circuit. If less than 5 ohms
8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the lane departure indicator turns ON and OFF when cycling the S48E Multifunction Switch - Center Console. If indicator does not turn on and off Replace K124 Active Safety Control Module. If indicator turns on and of f
10. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Ignition ON
2. Front view camera enabled

The front view camera module detects a malfunction.

1. The front view camera module is disabled.
2. The front view camera module disable history buffer stores information why the system was disabled.

The condition for setting the DTC is no longer present.

The front view camera module disable history buffers are used to store information about the front view camera module features that are disabled. The buffers will only update if the disable condition changes.

Example: If the data received from the steering wheel angle sensor is Invalid across many ignition cycles then it will only appear in 1 history buffer and not all history buffers. If this condition is the current reason why the front view camera module is disabled then it will be set in front view camera module disable history buffer 1. If a new reason occurs, such as vehicle speed validity is invalid, then the invalid steering wheel angle sensor fault will shift into disable history buffer 2 and vehicle speed validity invalid will be in disable history buffer 1. Since there are only four disable history buffers, the invalid steering wheel angle sensor will age out if four other disable reasons occur since the last invalid steering wheel angle sensor event occurred. Front view camera module disable history buffer 1 contains the current reason that one of the front view camera module features is disabled.

The front view camera module disable history buffers can display the following values

1. Lane Departure Warning Indicator Malfunction
2. Lane Departure Warning Switch Malfunction
3. Camera Obstructed
4. Accelerator Pedal Position Out of Range
5. Driven Wheel Speed Signal Invalid
6. Non-Driven Wheel Speed Signal Invalid
7. Brake Pedal Moderate Travel Signal Invalid
8. Brake Pedal Initial Travel Position Achieved
9. Lost Communication with Steering Wheel Angle Sensor Module
10. Invalid Data Received From Steering Wheel Angle Sensor Module
11. Forward Collision Alert Switch Malfunction
12. Clutch Pedal Position (CPP) Sensor Performance
13. Transmission Gear Engaged
14. Acceleration Sensor Longitudinal Signal
15. Invalid Data Received From Yaw Rate Sensor Module
16. Power Mode Controlled by Backup Device
17. System Power Mode
18. Overvoltage
19. Undervoltage
20. Undefined

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Ignition voltage is between 9-16 V.

The stored VIN does not match the received VIN.

1. The parking assist system, lane departure warning system, forward collision alert system, and/or active safety system is disabled.
2. The driver information center displays SERVICE PARK ASSIST or SERVICE LANE DEPARTURE SYSTEM or SERVICE DRIVER ASSIST.

The stored VIN matches the VIN stored in the body control module.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

For symptom byte information, refer to Symptom Byte List .

1. The B218L Side Object Sensor Module - Left runs the program to detect an internal fault when power up is commanded.

The B218L Side Object Sensor Module - Left has detected an internal malfunction.

1. The side object sensor system is disabled.
2. The driver information center displays SERVICE SIDE DETECTION SYSTEM

1. A current DTC clears when the malfunction is no longer present.
2. A history DTC clears when the device ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

1. This DTC may be stored as a history DTC without affecting the operation of the B218L Side Object Sensor Module - Left.
2. Do not replace B218L Side Object Sensor Module - Left based only on DTC B101D being set in history.
3. If DTC B101D is set as current, replace the B218L Side Object Sensor Module - Left.
4. Since the left module is the master, if it is replaced, there still may be a problem with the right side as the module may have been unable to report it. Once the left module is replaced, check DTCs and verify operation of the system to assure proper functionality.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

The vehicle must be in reverse with the engine running.

B127B 2B

Signal from the rearview camera not received by the Human Interface Machine Control Module for 2.5s.

1. The Human Interface Machine Control Module commands the driver information center to display "Service Rear Vision System".
2. The Human Interface Machine Control Module stores the DTC in memory.

1. The condition responsible for setting the DTC no longer exists.
2. A history DTC will clear once 40 malfunction-free ignition cycles have occurred.

Note. Circuit/System Verification must be performed before Circuit/System Testing. Under normal operating conditions the Human Interface Machine Control Module will become very hot. The module should be allowed to cool down prior to removal for any service procedure.

1. Ignition OFF, disconnect the harness connector at the B87 Rearview Camera.
2. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify a test lamp illuminates between the ignition circuit terminal 6 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the ignition circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is OK and there is voltage at the fuse. Refer to «Power Mode Mismatch»(ref-644726-S20060898812014072300000) . If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the ignition circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B87 Rearview Camera. If the test lamp illuminates
5. Engine running, park brake applied, transmission in R.
6. Test for greater than 11 V between the control circuit terminal 3 and ground. If less than 11 V Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K9 Body Control Module. If greater than 11 V
7. Ignition OFF, disconnect the X2 harness connector at the K74 Human Interface Control Module, ignition ON.
8. Test for less than 1 V between the signal circuit terminal listed below and ground: B87 Rearview Camera signal (+) circuit terminal 1 B87 Rearview Camera signal (-) circuit terminal 4 If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
9. Test for infinite resistance between the signal circuit terminal listed below and ground: B87 Rearview Camera signal (+) circuit terminal 1 B87 Rearview Camera signal (-) circuit terminal 4 If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
10. Test for less than 2 ohms in the signal (+) circuit end to end. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
11. Test for less than 2 ohms in the signal (-) circuit end to end. If 2 ohms or greater Test the signal circuit for an open/high resistance. If less than 2 ohms
12. Replace the B87 Rearview Camera.
13. Engine running, transmission in R, verify a clear rear vision image is displayed on the P17 Info Display Module. If a clear rear vision image is not displayed Replace the K74 Human Interface Control Module. If a clear rear vision image is displayed
14. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Ignition ON, engine RUNNING
2. Transmission in REVERSE

B1405 02

The rear parking assist control module has detected the object sensor supply voltage circuit is shorted to ground.

B1405 03

The rear parking assist control module has detected the object sensor supply voltage circuit is less than 7.2 V.

B1405 07

The rear parking assist control module has detected the object sensor supply voltage circuit is greater than 9.2 V.

1. The parking assist system is disabled.
2. The driver information center displays SERVICE PARK ASSIST.

The condition for setting the DTC is no longer present.

1. Ignition OFF, disconnect the X2 harness connector at the K41R Rear Parking Assist Control Module, ignition ON.
2. Test for less than 1 V between the 8 V reference circuit terminal 4 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
3. Ignition OFF.
4. Test for infinite resistance between the 8 V reference circuit terminal 4 and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
5. Replace the K41R Rear Parking Assist Control Module.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Ignition ON, engine RUNNING
2. Transmission in REVERSE

B1405 02

The parking assist control module has detected the object sensor supply voltage circuit is shorted to ground.

B1405 03

The parking assist control module has detected the object sensor supply voltage circuit is less than 7.2 V.

B1405 07

The parking assist control module has detected the object sensor supply voltage circuit is greater than 9.2 V.

1. The parking assist is disabled.
2. The driver information center displays SERVICE PARK ASSIST.

The condition for setting the DTC is no longer present.

1. Ignition OFF, disconnect X2 and X3 harness connectors at the K41 Front and Rear Parking Assist Control Module, ignition ON.
2. Test for less than 1 V between the 8 V reference circuit terminals listed below and ground. Terminal 4 X2 Terminal 1 X3 If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
3. Ignition OFF.
4. Test for infinite resistance between 8V reference circuit terminals listed below and ground. Terminal 4 X2 Terminal 1 X3 If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
5. Replace the K41 Front and Rear Parking Assist Control Module.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Engine ON.
2. Haptic seat motor commanded ON.

DTC B172E 01

The K40D Seat Memory Control Module - Driver has detected a short to voltage in the P45LR Seat Haptic Signal Motor - Driver Left Rear circuit.

DTC B172E 02

The K40D Seat Memory Control Module - Driver has detected a short to ground in the P45LR Seat Haptic Signal Motor - Driver Left Rear circuit.

DTC B172F 01

The K40D Seat Memory Control Module - Driver has detected a short to voltage in the P45RR Seat Haptic Signal Motor - Driver Right Rear circuit.

DTC B172F 02

The K40D Seat Memory Control Module - Driver has detected a short to ground in the P45RR Seat Haptic Signal Motor - Driver Right Rear circuit.

Alerts will be communicated with beeps.

1. The condition responsible for setting the DTC no longer exists.
2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

The infotainment personalization menu allows the user to set alerts to be either haptic through the seats or audio beeps through the radio. Refer to the Owner's Manual to verify this setting.

1. Ignition OFF, disconnect the X5 harness connector at the K40D Seat Memory Control Module - Driver, ignition ON.
2. Test for less than 1 V between the appropriate control circuit terminal listed below and ground: Terminal 4 - P45RR Seat Haptic Movement Motor - Driver Right Rear Terminal 5 - P45LR Seat Haptic Movement Motor - Driver Left Rear If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
3. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
4. Test for 27-51 ohms between the appropriate control circuit terminal listed below and ground: Terminal 4 - P45RR Seat Haptic Movement Motor - Driver Right Rear Terminal 5 - P45LR Seat Haptic Movement Motor - Driver Left Rear If less than 27 ohms Test or replace the appropriate P45 Seat Haptic Movement Motor - Driver. If greater than 51 ohms Verify the circuit ground connection is clean and secure. If the ground connector is not clean or secure, repair as necessary. If the circuit ground connection is clean and secure Replace the appropriate P45 Seat Haptic Movement Motor - Driver. If between 27-51 ohms
5. Install a 3 A fused jumper wire between the appropriate control circuit terminal listed below and B+. Terminal 4 - P45RR Seat Haptic Movement Motor - Driver Right Rear Terminal 5 - P45LR Seat Haptic Movement Motor - Driver Left Rear
6. Verify the appropriate P45 Seat Haptic Movement Motor - Driver turns on and off. If the P45 Seat Haptic Movement Motor - Driver does not turn on and off Replace the appropriate P45 Seat Haptic Movement Motor - Driver. If the P45 Seat Haptic Movement Motor - Driver turn on and off
7. Ignition OFF, connect the harness connector at the K40D Seat Memory Control Module - Driver, ignition ON.
8. Verify the P45LR Haptic Movement Motor - Driver Left Rear turns on and off when commanding the Driver Seat Cushion Left Rear Haptic Movement On and Off with a scan tool. If the motor does not function Replace the K40D Seat Memory Control Module - Driver. If the motor functions
9. Verify the P45RR Haptic Movement Motor - Driver Right Rear turns on and off when commanding the Driver Seat Cushion Right Rear Haptic Movement On and Off with a scan tool. If the motor does not function Replace the K40D Seat Memory Control Module - Driver. If the motor functions
10. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Ignition ON.

DTC B356A 02

The Frontview Camera Module has detected a short to ground for more than 10 s.

DTC B356A 05

The Frontview Camera Module has detected a short to voltage or an open/high resistance for more than 10 s.

1. Lane departure warning is disabled.
2. Service Lane Departure is displayed on the driver information center.

1. The condition responsible for setting the DTC no longer exists.
2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Manually depressing the Lane Departure Warning Switch for approximately 10 seconds will cause this DTC to set.

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 2 and ground. If 10 ohms or greater Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Vehicle Direction Warning Switch Status parameter is Off. If not Off Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module. Test for infinite resistance between the S48E Multifunction Switch - Center Console signal circuit terminal 7 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module. If Off
5. Install a 3 A fused jumper wire between the signal circuit terminal 7 and ground.
6. Verify within 10 s the scan tool Vehicle Direction Warning Switch Status parameter is On. If not On Ignition OFF, disconnect harness connector at the K109 Frontview Camera Module. Ignition ON. Test for less than 1 V between the S48E Multifunction Switch - Center Console signal circuit terminal 7 and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V. Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K109 Frontview Camera Module. If On
7. Test or replace the S48E Multifunction Switch - Center Console.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

The module continually runs the program to detect faults.

The control module has detected a malfunction.

The control module will not function and the Active Safety System will be inoperative.

1. A current DTC clears when the malfunction is no longer present. Clearing DTC B390A 58 will require driving the vehicle to a speed greater than 9 km/h (6 mph).
2. A history DTC clears when the control module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

1. If DTC B390A 58 is set, check for anything that can interfere with the radar signal. Verify area in front of radar is clean of mud, ice, snow, etc. Also verify the fascia panels in front of the radar are damage-free and not obstructed by any add-on accessories such as emblems, etc.
2. Once the vehicle fascia is clean, unobstructed, and damage free, and B390A 58 is still active, it means radar sensor has declared a blockage condition and has not been able to clear it until certain conditions are met. It is necessary to test drive the vehicle to a speed greater than 9 km/h (6 mph) and allow the radar sensor to be exposed to other vehicles and traffic in the direction of the radar sensor field of view. Usually, a short drive in real life conditions will allow the radar sensor to clear the B390A 58 blockage condition.
3. The B233 Radar Sensor Module - Short Range modules cannot be swapped from side to side once they have been installed. Failure type byte 67 can occur if a module is reinstalled on the incorrect side of the vehicle.

Note. Perform Circuit/System Verification before beginning Circuit/System Testing.

1. Ignition OFF and all vehicle systems OFF. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the following ground circuit terminals and ground. B233LF Radar Sensor Module - Short Range Left Front, terminal 4 B233RF Radar Sensor Module - Short Range Right Front, terminal 3 If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the appropriate ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Replace the appropriate B233 Radar Sensor Module - Short Range

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. Module alignment procedure started.
2. Vehicle operating on the road.

The module was unable to complete alignment process within approximately 30 minutes of drive time.

1. The module is disabled.
2. Active Safety System is disabled.
3. Service Driver Assist displayed on the driver information center and/or heads up display.

The module is successfully aligned.

1. The B233B Radar Sensor Module - Long Range needs to be securely mounted. Verify it is secured properly in it's mount.
2. The B233B Radar Sensor Module - Long Range can be aligned on the same alignment drive as the K109 Frontview Camera Module.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Vehicle operating on the road.

The frontview camera module was unable to see the road ahead.

1. The frontview camera module is disabled.
2. The Active Safety System is disabled.
3. Service Driver Assist is displayed on the driver information center and/or heads up display.

The frontview camera module is successfully aligned.

1. The frontview camera module needs to be securely mounted. Verify it is secured properly in it's mount.
2. The frontview camera module needs to have a clear field of vision to the road ahead. Check for anything that can impair the camera's vision.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Engine running.

The engine control module detects that the engine speed and torque modification messages from the active safety control module are either corrupted or intermittently missing.

1. The active safety control module sends a serial data message to display the appropriate indicator message
2. The active safety control module features are unavailable.

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

Diagnostic Aid

This is an informational DTC set by the engine control module. It is set to provide an indication that the active safety control module will not be able to perform as intended. Diagnose any other DTCs first.

Note. During normal diagnostic and/or repair verification technicians may find that a "Service Driver Assist System" message may be displayed by the active safety control module. Do not replace the active safety control module for this condition.

If the Service Driver Assist System message is on with no DTCs set, perform the following steps

1. Remove the key from the ignition, open and close the driver's door to turn off retained accessory power, and wait 60 seconds.
2. Ignition ON, if the Service Driver Assist message is still present, operate the vehicle at speeds greater than 15 km/h (10 mph) to complete the self test. The active safety control module should request the message to turn OFF.
3. If the telltales remain ON with no DTCs set after the drive cycle, disconnect the battery for at least 60 seconds then reconnect the battery.
4. Operate the vehicle at speeds greater than 40 km/h (25 mph), the active safety control module should request all telltale indicators to turn OFF.

Visual/Physical Inspection

1. Inspect for aftermarket devices which may affect the operation of the system. Refer to «Checking Aftermarket Accessories»(ref-644726-S15551717792014072300000) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which may cause the symptom.
3. This system can use various sensors that need to be clean in order to function properly. Make sure to check the following sensors for obstructions: parking assist sensors located in the front and rear bumper covers. rear vision camera lens. front camera line of vision. side object sensor module areas at sides of rear bumper fascia.

Symptom List

1. «Forward Collision Alert System Malfunction»(ref-644761-S02208976072014072300000)
2. «Lane Departure Warning System Malfunction»(ref-644761-S41784093672014072300000)
3. «Parking Assist System Malfunction»(ref-644761-S15868089442014072300000)
4. «Rear Cross Traffic Alert System Malfunction»(ref-644761-S38612264702014072300000)
5. «Rear Vision Camera System Malfunction»(ref-644761-S26604880562014072300000)
6. «Side Blind Spot Alert System Malfunction (N America)»(ref-644761-S34828087832014072300000) , «Side Blind Spot Alert System Malfunction (Except N America)»(ref-644761-S08616999972014072300000)

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

The infotainment personalization menu allows the user to set alerts to be either haptic through the seats or audio beeps through the radio. Refer to the Owner's Manual to verify this setting.

1. Ignition OFF, disconnect the X6 harness connector at the K40D Seat Memory Control Module - Driver, ignition ON.
2. Test for less than 1 V between the appropriate control circuit terminal listed below and ground: Terminal 4 - P45RR Seat Haptic Signal Motor - Driver Right Rear Terminal 5 - P45LR Seat Haptic Signal Motor - Driver Left Rear If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
3. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
4. Test for 27-51 ohms between the appropriate control circuit terminal listed below and ground: Terminal 4 - P45RR Seat Haptic Signal Motor - Driver Right Rear Terminal 5 - P45LR Seat Haptic Signal Motor - Driver Left Rear If less than 27 ohms Test or replace the appropriate P45 Seat Haptic Signal Motor - Driver. If greater than 51 ohms Verify the circuit ground connection is clean and secure. If the ground connector is not clean or secure, repair as necessary. If the circuit ground connection is clean and secure Replace the appropriate P45 Seat Haptic Signal Motor - Driver. If between 27-51 ohms
5. Install a 3 A fused jumper wire between the appropriate control circuit terminal listed below and B+. Terminal 4 - P45RR Seat Haptic Signal Motor - Driver Right Rear Terminal 5 - P45LR Seat Haptic Signal Motor - Driver Left Rear
6. Verify the appropriate P45 Seat Haptic Signal Motor - Driver turns on and off. If the P45 Seat Haptic Signal Motor - Driver does not turn on and off Replace the appropriate P45 Seat Haptic Signal Motor - Driver. If the P45 Seat Haptic Signal Motor - Driver turn on and off
7. Ignition OFF, connect the harness connector at the K40D Seat Memory Control Module - Driver, ignition ON.
8. Verify the P45LR Haptic Signal Motor - Driver Left Rear turns on and off when commanding the Driver Seat Cushion Left Rear Haptic Movement On and Off with a scan tool. If the motor does not function Replace the K40D Seat Memory Control Module - Driver. If the motor functions
9. Verify the P45RR Haptic Signal Motor - Driver Right Rear turns on and off when commanding the Driver Seat Cushion Right Rear Haptic Movement On and Off with a scan tool. If the motor does not function Replace the K40D Seat Memory Control Module - Driver. If the motor functions
10. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Certain factors will affect the operation of the forward collision alert system. Forward collision alert is intended to detect vehicles. It is not intended to warn the driver of any objects that are not detected as a vehicle such as pedestrians, animals, signs, guard rails, bridges, construction barrels or other stationary or slow moving objects. In few cases the camera may inadvertently detect a vehicle that is not in the path ahead, or the system may occasionally provide unrealistic alerts. This could occur with a turning vehicle ahead, guard rails, traffic signs, or other stationary objects. This is normal operation, the vehicle does not need service. When the system is operating properly, the green vehicle ahead alert indicator will illuminate on the vehicle direction display when the system detects a vehicle in the path ahead. This indicates that all of the required operating conditions are met. The green vehicle ahead alert indicator will not appear when the system is having difficulty seeing other vehicles on the road. This can occur if the front view camera is blocked with mud, dirt, snow, ice, slush, if the windshield is damaged, or when weather limits visibility, such as while driving in fog, rain, or snow conditions. This is normal operation, the vehicle does not need service.

Additionally, the Front View Camera Disable History can give useful hints about what affected the operation of the forward collision alert system. For the Front View Camera Disable History, refer to DTC B1011 .

Note. Perform the Circuit/System Verification before proceeding with Circuit/System Testing.

Frontview Camera Module Malfunction without Active Safety System, UGN

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the K109 Frontview Camera Module. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 1 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 3 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module. If the test lamp illuminates
4. Replace the K109 Frontview Camera Module.

Frontview Camera Module Malfunction with Active Safety System, UGN

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the K109 Frontview Camera Module. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 2 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module. If the test lamp illuminates
4. Replace the K109 Frontview Camera Module.

Forward Collision Alert Indicator Malfunction

1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the P43 Collision Alert Indicators. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 4 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify a test lamp illuminates between the ignition circuit terminal 1 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the ignition circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, refer to «Power Mode Mismatch»(ref-644726-S20060898812014072300000) . If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the ignition circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the P43 Collision Alert Indicators. If the test lamp illuminates
5. Connect a test lamp between the control circuit terminal 2 and the ignition circuit terminal 1.
6. Verify the test lamp turns ON and OFF when commanding the Instrument Cluster All Indicators On and Off with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the P16 Instrument Cluster, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Ignition OFF. Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the P16 Instrument Cluster. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the P16 Instrument Cluster. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the P16 Instrument Cluster. If the test lamp turns ON and OFF
7. Test or replace the P43 Collision Alert Indicators.

Forward Collision Alert Switch Malfunction

1. Ignition OFF, disconnect the X3 harness connector at the K9 Body Control Module, ignition ON.
2. Test for less than 1 V between the signal circuit terminals listed below and ground: Terminal 4 Terminal 16 If 1 V or greater Repair the short to voltage on the signal circuit. If less than 1 V
3. Ignition OFF.
4. Test for infinite resistance between the signal circuit terminals listed below and ground: Terminal 4 Terminal 16 If less than infinite resistance Repair the short to ground on the signal circuit. If infinite resistance
5. Test for 7.0k - 10.5k ohms between signal circuit terminals 4 and signal circuit terminal 16. If greater than 10.5k ohms Disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left. Test for less than 5 ohms between the circuit terminals listed below: S70L Steering Wheel Controls Switch - Left terminal 8 and K9 Body Control Module terminal 4. S70L Steering Wheel Controls Switch - Left terminal 9 and K9 Body Control Module terminal 16. If greater than 5 ohms, repair the open/high resistance in the circuit. If less than 5 ohms, test or replace the S70L Steering Wheel Controls Switch - Left. If less than 7.0k ohms Disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left. Verify infinite resistance between signal circuit terminals 4 and signal circuit terminal 16 If less than infinite resistance, repair short in circuit. If infinite resistance, test or replace the S70L Steering Wheel Controls Switch - Left. If between 7.0k - 10.5k ohms
6. Test for 2.1k - 3.2k ohms between signal circuit terminals 4 and signal circuit terminal 16 while pressing forward collision alert switch. If not between 2.1k - 3.2k ohms Test or replace the S70L Steering Wheel Controls Switch - Left. If between 2.1k - 3.2k ohms
7. Replace the K9 Body Control Module.

Forward Collision Alert Switch

1. Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left.
2. Test for 7.0k-10.5k ohms between the control terminal 8 and the signal circuit terminal 9. If not between 7.0k-10.5k ohms Replace the S70L Steering Wheel Controls Switch - Left. If between 7.0k-10.5k ohms
3. Test for 2.1k-3.1k ohms between the control terminal 8 and the signal circuit terminal 9 while pressing the switch. If not between 2.1k-3.1k ohms Replace the S70L Steering Wheel Controls Switch - Left. If between 2.1k-3.1k ohms
4. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

For vehicles with UGN, the parking assist feature can be disabled if the Active Safety Control Module detected a problem in the active safety system. Check the Active Safety Control Module for DTCs.

The scan tool Park Assist Disable History parameters are a list of the seven previous reasons the parking assist system was disabled. These parameters may help in the diagnosis of an intermittent concern or a customer concern which is the result of normal system operation. The following is a brief description of potential causes which may aid in diagnosis

1. Manual Disable - The parking assist system has been disabled through the parking assist switch or audio system personalization menu.
2. Hitch/Object Attached - The parking assist control module is detecting an object that is attached to the vehicle. Common items such as a hitch receiver, trailer, or a bicycle rack may cause this concern. Additionally, damage to the rear of the vehicle or a misaligned sensor may cause this concern. If the vehicle is damaged in a manner that causes the sensor to detect the bumper itself, the parking assist control module will interpret this as an attached object and disable the system. Carefully inspect the bumper, bumper mounting surface, and sensor retainers before continuing with normal diagnosis. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 mph).
3. Reverse Overspeed - The vehicle is travelling too fast in reverse at speeds of greater than 8 km/h (5 mph).
4. Inhibit - The parking assist control module has lost or received invalid GMLAN signal(s).
5. Sensor Disturbance - An outside interference is causing sensor movement. Such interference may be caused a heavy pounding, like that of a nearby jackhammer, or large changes in pressure, such as a large truck air brakes.
6. Sensor Ring Time - If the sensor fails its own diagnostic initialization the parking assist control module will set this error. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 mph). The following is a list of reasons this cause may have set: One or more of the sensors may be blocked by snow, mud, ice, or other debris. This might happen after going through a car wash in cold weather. Silicone insulator surrounding sensor maybe missing, cut, or twisted. Improperly installed sensor, sensor maybe be crooked due to a tight wire harness. One or more of the sensors may be scratched or the paint maybe chipped. Excessive paint thickness on a sensor may cause an excessive sensor ring time. When replacing or refinishing a sensor, do not apply an excessive amount of paint or clear coat.

Circuit/System Testing (without UGN)

Parking Assist Switch Circuit Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the S48E Multifunction Switch - Center Console.
2. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Parking Assist Switch Status parameter is Inactive. If not Inactive Ignition OFF, disconnect the X1 harness connector at the K41 Parking Assist Control Module. Test for infinite resistance between the control circuit terminal 8 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K41 Parking Assist Control Module. If Inactive
5. Install a 3 A fused jumper wire between the signal circuit terminal 8 and the ground circuit terminal 5.
6. Verify the scan tool Parking Assist Switch Status parameter is Active. If not Active Ignition OFF, disconnect the X1 harness connector at the K41 Parking Assist Control Module. Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Parking Assist Control Module. If Active
7. Replace S48E Multifunction Switch - Center Console.

Parking Assist Switch Indicator Circuit Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the S48E Multifunction Switch - Center Console, Ignition ON.
2. Verify a test lamp illuminates between the ignition circuit terminal 1 and ground. If the test lamp does not illuminate Ignition OFF. Test for less than 2 ohms in the ignition circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms , replace the K9 Body Control Module. If the test lamp illuminates
3. Connect a test lamp between the control circuit terminal 2 and the ignition circuit terminal 1.
4. Verify the lamp turns ON and OFF when commanding the Park Assist Switch Indicator ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the X1 harness connector at the K41 Parking Assist Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Ignition OFF. Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K41 Parking Assist Control Module. If the test lamp is always ON Ignition OFF, disconnect the X1 harness connector at the K41 Parking Assist Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K41 Parking Assist Control Module. If the test lamp turns ON and OFF
5. All OK.

Circuit/System Testing (with UGN)

Parking Assist Switch Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Park Assist Switch parameter is Inactive. If not Inactive Ignition OFF, disconnect the harness connector X1 at the K124 Active Safety Control Module. Test for infinite resistance between the signal circuit terminal 11 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K124 Active Safety Control Module. If Inactive
5. Install a 3 A fused jumper wire between the signal circuit terminal 11 and the ground circuit terminal 5.
6. Verify the scan tool Park Assist Switch parameter is Active. If not Active Ignition OFF, disconnect the harness connector at the K124 Active Safety Control Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K124 Active Safety Control Module. If Active
7. Test or replace the S48E Multifunction Switch - Center Console.

Parking Assist Switch Indicator Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down. Ignition ON, interior dimming set to full bright.
2. Verify a test lamp illuminates between the control circuit terminal 2 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K124 Active Safety Control Module. If the test lamp illuminates
3. Connect a test lamp between the control circuit terminal 2 and the control circuit terminal 3.
4. Verify the test lamp turns ON and OFF when commanding the Parking Assist Switch Indicator ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the K124 Active Safety Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1V Ignition OFF. Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms replace the K124 Active Safety Control Module. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the K124 Active Safety Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K124 Active Safety Control Module. If the test lamp turns ON and OFF
5. Test or replace the S48E Multifunction Switch - Center Console.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. The rear cross traffic alert system uses the same sensors as side blind zone alert so a malfunction may affect either or both systems.
2. The conditions for disabling the rear cross traffic alert system are captured by DTCs. The drivers information center will display Service Side Detection System if one of the sensors has failed. A B101E 47 Electronic Control Unit Software VIN Not Programmed DTC in history will not affect sensor operation and the module should not be replaced for this DTC.
3. The rear cross traffic system can be disabled if any off the following occur: The driver has selected the Off mode through vehicle personalization menus. The selected mode is retained over ignition cycles. A driver information center message stating that the Rear Cross Traffic System Alert Off shall be displayed. There is a loss of serial data communication with a sensor or between modules.
4. The side blind zone may be temporarily unavailable due to the following: A blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information message "Side Detection System Unavailable" will be displayed. The side blind zone system transitions back to the normal operating state when the blockage is removed. Bumper sticks, fascia damage, labels, and heavy rain storms may also cause this condition. The blockage determination is performed with the vehicle in a drive gear. The rear cross traffic alert system will read the GPS latitude and longitude on the serial data bus and calculate if the vehicle is within a Radio Astronomy zone. These zones are located in Europe and Japan and require the sensors to be turned off. The "Side Detection System Unavailable" message will be displayed to the driver when this occurs.
5. Because the sensors are identical, they may be swapped from one side of the vehicle to the other in an attempt to isolate a concern. Sensors should NOT be swapped from one vehicle to another.
6. The rear cross traffic alert system is designed to ignore stationary objects; however, the system may occasionally detect pedestrians, shopping carts, or other objects. This is normal system operation and does not require service.
7. The rear cross traffic alert system may indicate an object if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. This is normal operation and does not require service.

Left Side Object Sensor Malfunction

1. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Disconnect the harness connector at the B218L Side Object Sensor Module - Left.
2. Test for less than 10 ohms between ground circuit terminal 8 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition Off. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B218L Side Object Sensor Module - Left. If the test lamp illuminates
4. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
5. Test for less than 2 ohms in each of the serial data circuits end to end between the control module harness connector terminal 2 and the DLC terminal 1. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
6. Replace B218L Side Object Sensor Module - Left.

Right Side Object Sensor Malfunction

1. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Disconnect the harness connector at the B218R Side Object Sensor Module - Right.
2. Test for less than 10 ohms between the following ground circuit terminals and ground. Terminal 3 Terminal 8 If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B218R Side Object Sensor Module - Right. If the test lamp illuminates
4. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
5. Test for less than 2 ohms in each of the serial data circuits end to end between the control module harness connector terminal 7 and the DLC terminal 1. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
6. Replace B218R Side Object Sensor Module - Right.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

A poor video image can be caused by ice, snow, and mud buildup on the lens of the rearview camera. Also, extreme lighting conditions can affect performance, such as operating in the dark or with bright sunlight shining on the camera. Extreme high or low temperatures can also affect the image quality. An open in the shield of the video signal circuit can also cause a distorted screen.

Note. Circuit/System Verification must be performed before Circuit/System Testing. Under normal operating conditions the Human Interface Machine Control Module will become very hot. The module should be allowed to cool down prior to removal for any service procedure.

1. Ignition OFF, disconnect the harness connector at the B87 Rearview Camera.
2. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify a test lamp illuminates between the ignition circuit terminal 6 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the ignition circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is OK and there is voltage at the fuse. Refer to «Power Mode Mismatch»(ref-644726-S20060898812014072300000) . If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the ignition circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B87 Rearview Camera. If the test lamp illuminates
5. Engine running, park brake applied, transmission in R.
6. Test for greater than 11 V between the control circuit terminal 3 and ground. If less than 11 V Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K9 Body Control Module. If greater than 11 V
7. Ignition OFF, disconnect the X2 harness connector at the K74 Human Interface Control Module, ignition ON.
8. Test for less than 1 V between the signal circuit terminal listed below and ground: B87 Rearview Camera signal (+) circuit terminal 1 B87 Rearview Camera signal (-) circuit terminal 4 If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
9. Test for infinite resistance between the signal circuit terminal listed below and ground: B87 Rearview Camera signal (+) circuit terminal 1 B87 Rearview Camera signal (-) circuit terminal 4 If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
10. Test for less than 2 ohms in the signal (+) circuit end to end. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
11. Test for less than 2 ohms in the signal (-) circuit end to end. If 2 ohms or greater Test the signal circuit for an open/high resistance. If less than 2 ohms
12. Replace the B87 Rearview Camera.
13. Engine running, transmission in R, verify a clear rear vision image is displayed on the P17 Info Display Module. If a clear rear vision image is not displayed Replace the K74 Human Interface Control Module. If a clear rear vision image is displayed
14. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. The conditions for disabling the side blind zone alert system are captured by DTCs. The drivers information center will display Service Side Detection System if one of the sensors has failed. A B101E 47 Electronic Control Unit Software VIN Not Programmed DTC in history will not affect sensor operation and the module should not be replaced for this DTC.
2. The side blind zone system can be disabled if any off the following occur: The driver has selected the Off mode through vehicle personalization menus. The selected mode is retained over ignition cycles. A driver information center message stating that the side blind zone system is off shall be displayed and the outside mirror indicators will be OFF. There is a loss of serial data communication with a sensor or between modules.
3. The side blind zone may be temporarily unavailable due to the following: A blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information message "Side Detection System Unavailable" will be displayed. The side blind zone system transitions back to the normal operating state when the blockage is removed. Bumper sticks, fascia damage, labels, and heavy rain storms may also cause this condition. The blockage determination is performed with the vehicle in a drive gear. The side blind zone alert system will read the GPS latitude and longitude on the serial data bus and calculate if the vehicle is within a Radio Astronomy zone. These zones are located in Europe and Japan and require the sensors to be turned off. The "Side Detection System Unavailable" message will be displayed to the driver when this occurs.
4. Because the sensors are identical, they may be swapped from one side of the vehicle to the other in an attempt to isolate a concern. Sensors should NOT be swapped from one vehicle to another.
5. The side blind zone system is designed to ignore stationary objects; however, the system may occasionally detect guard rails, signs, trees, shrubs, or other stationary objects as an object in the blind zone. This is normal system operation and does not require service.
6. The side blind zone system may indicate an object in the blind zone if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. This is normal operation and does not require service.

Left Side Object Sensor Malfunction

1. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Disconnect the harness connector at the B218L Side Object Sensor Module - Left.
2. Test for less than 10 ohms between ground circuit terminal 8 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition Off. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B218L Side Object Sensor Module - Left. If the test lamp illuminates
4. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
5. Test for less than 2 ohms in each of the serial data circuits end to end between the control module harness connector terminal 2 and the DLC terminal 1. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
6. Replace B218L Side Object Sensor Module - Left.

Right Side Object Sensor Malfunction

1. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Disconnect the harness connector at the B218R Side Object Sensor Module - Right.
2. Test for less than 10 ohms between the following ground circuit terminals and ground. Terminal 3 Terminal 8 If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition Off. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B218R Side Object Sensor Module - Right. If the test lamp illuminates
4. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
5. Test for less than 2 ohms in each of the serial data circuits end to end between the control module harness connector terminal 7 and the DLC terminal 1. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
6. Replace B218R Side Object Sensor Module - Right.

Side Object Indicator Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the appropriate A9 Outside Rearview Mirror. It may take up to 2 minutes for all vehicle systems to power down. X510 - Driver Door Harness to Outside Rearview Mirror X610 - Passenger Door Harness to Outside Rearview Mirror
2. Test for less than 10 ohms between the ground circuit terminal 9 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON, connect a test lamp between the control circuit terminal 8 and the ground circuit terminal 9.
4. Verify the test lamp turns ON and OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the appropriate B218 Side Object Sensor Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the B218 Side Object Sensor Module. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the B218 Side Object Sensor Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, replace the B218 Side Object Sensor Module. If the test lamp turns ON and OFF
5. Test or replace the A9 Outside Rearview Mirror Glass.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

1. When the ignition is turned on, or the engine is started, both outside rearview mirror displays will briefly come on to indicate that the system is operating.
2. The conditions for disabling the side blind zone alert system are captured by DTCs. The drivers information center will display Service Side Detection System if one of the sensors has failed.
3. The side blind zone system will be disabled if the driver has selected the Off mode through vehicle personalization menus. The selected mode is retained over ignition cycles. A driver information center message stating that the side blind zone system is off shall be displayed and the outside mirror indicators will be OFF.
4. The side blind zone may be temporarily unavailable if a blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information message "Side Detection System Unavailable" will be displayed. The side blind zone system transitions back to the normal operating state when the blockage is removed. Bumper sticks, fascia damage, labels, and heavy rain storms may also cause this condition. The blockage determination is performed with the vehicle in a drive gear.
5. Because the sensors are NOT identical, they must NOT be swapped from one side of the vehicle to the other in an attempt to isolate a concern. Sensors should also NOT be swapped from one vehicle to another.
6. The side blind zone system is designed to ignore stationary objects; however, the system may occasionally detect guard rails, signs, trees, shrubs, or other stationary objects as an object in the blind zone. This is normal system operation and does not require service.
7. The side blind zone system may indicate an object in the blind zone if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. This is normal operation and does not require service.

Left Side Object Sensor Malfunction

1. Ignition OFF and all vehicle systems OFF. Disconnect the harness connector at the B218L Side Object Sensor Module - Left. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between ground circuit terminal 7 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Verify a test lamp illuminates between the B+ circuit terminal 8 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition Off. Test for less than 2 ohms in the B+ circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B218L Side Object Sensor Module - Left. If the test lamp illuminates
4. Ignition OFF and all vehicle systems OFF. Disconnect the It may take up to 2 minutes for all vehicle systems to power down.
5. Test for less than 2 ohms between the serial data circuit terminal 1 and the DLC terminal 1. If 2 ohms or greater Repair the open/high resistance in the circuit. If less than 2 ohms
6. Replace B218L Side Object Sensor Module - Left.

Side Object Indicator Malfunction

1. Ignition OFF and all vehicle systems OFF, remove the appropriate outside rearview mirror glass and disconnect the P43 Side Object Detection Indicator connector. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON, connect a test lamp between the control circuit terminal and the ground circuit terminal.
4. Verify the test lamp turns ON and OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the B218R Side Object Sensor Module - Right. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the B218R Side Object Sensor Module - Right. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the B218R Side Object Sensor Module - Right, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, replace the B218R Side Object Sensor Module - Right. If the test lamp turns ON and OFF
5. Test or replace the appropriate A9 Outside Rearview Mirror Glass.

1. Perform the «Diagnostic System Check - Vehicle»(ref-644698-S03753758692014072300000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-644698-S14897089332014072300000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-644698-S14982480842014072300000) provides an overview of each diagnostic category.

Certain factors will affect the operation of the lane departure warning system. When the system is operating properly, the indicator will illuminate on the instrument cluster. This indicates that all of the required operating conditions to permit lane departure warning have been met. The indicator will not appear when the system is having difficulty seeing the lines on the road or if the view of the frontview camera is blocked with mud, dirt, snow, ice, or slush, if the windshield is damaged, or when weather limits visibility, such as while driving in fog, rain, or snow conditions. This is normal operation, the vehicle does not need service. Additionally, lane departure warnings may occasionally occur in a properly operating vehicle due to tar marks, shadows, cracks in the road, or other road imperfections. This is normal system operation and the vehicle does not require service. The driver information center may also display Lane Departure System Unavailable due to the temporary conditions listed above.

Additionally, the Frontview Camera Disable History can give useful hints about what affected the operation of the lane departure warning system. For the Frontview Camera Disable History, refer to DTC B1011 .

Lane Departure Switch Malfunction (without UGN)

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Lane Departure Warning Switch parameter is Inactive. If not Inactive Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module. Test for infinite resistance between the signal circuit terminal 10 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module. If Inactive
5. Install a 3 A fused jumper wire between the signal circuit terminal 7 and ground.
6. Verify the scan tool Lane Departure Warning Switch parameter is Active. If not Active Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K109 Frontview Camera Module. If Active
7. Test or replace the S48E Multifunction Switch - Center Console.

Lane Departure Warning Switch Indicator (without UGN)

1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console, ignition ON.
2. Test for 1.7-3.6 V between the dimming control circuit terminal 3 and ground. NOTE: Verify interior lighting dimming is turned all the way up. If less than 1.7 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If greater than 3.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If between 1.7-3.6 V
3. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.
4. Test for less than 1 V between the signal circuit terminal 10 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
5. Ignition OFF.
6. Test for infinite resistance between the signal circuit terminal 10 and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
7. Test for less than 5 ohms between the K109 Frontview Camera Module terminal 10 and S48E Multifunction Switch - Center Console terminal 7. If greater than 5 ohms Repair the open/high resistance in the circuit. If less than 5 ohms
8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the lane departure switch Indicator turns ON and OFF when cycling the lane departure warning switch. If indicator does not turn on and off Replace K109 Frontview Camera Module. If indicator turns on and of f
10. All OK.

Lane Departure Warning Switch Malfunction (with UGN)

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
3. Ignition ON.
4. Verify the scan tool Lane Departure Warning Switch parameter is Inactive. If not Inactive Ignition OFF, disconnect the harness connector X2 at the K124 Active Safety Control Module. Test for infinite resistance between the signal circuit terminal 16 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K124 Active Safety Control Module. If Inactive
5. Install a 3 A fused jumper wire between the signal circuit terminal 7 and ground.
6. Verify the scan tool Lane Departure Warning Switch parameter is Active. If not Active Ignition OFF, disconnect the X2 harness connector at the K124 Active Safety Control Module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K124 Active Safety Control Module. If Active
7. Test or replace the S48E Multifunction Switch - Center Console.

Lane Departure Warning Switch Indicator (with UGN)

1. Ignition OFF, and all vehicle systems OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console, ignition ON. NOTE: Verify interior lighting dimming is turned all the way up.
2. Test for 1.6-3.6 V between the dimming control circuit terminal 3 and ground. If less than 1.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If greater than 3.6 V Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V, refer to «Interior Backlighting Malfunction»(ref-644751-S40438514252014072300000) . If between 1.6-3.6 V
3. Ignition OFF, disconnect the X1 harness connector at the K124 Active Safety Control Module, ignition ON.
4. Test for less than 1 V between the signal circuit terminal 3 and ground. If 1 V or greater Repair the short to voltage on the circuit. If less than 1 V
5. Ignition OFF.
6. Test for infinite resistance between the signal circuit terminal and ground. If less than infinite resistance Repair the short to ground on the circuit. If infinite resistance
7. Test for less than 5 ohms between the X1 harness connector at the K124 Active Safety Control Module terminal 3 and the S48E Multifunction Switch - Center Console circuit terminal 8. If greater than 5 ohms Repair the open/high resistance in the circuit. If less than 5 ohms
8. Test or replace the S48E Multifunction Switch - Center Console.
9. Verify the lane departure indicator turns ON and OFF when cycling the lane departure warning switch. If indicator does not turn on and off Replace K124 Active Safety Control Module. If indicator turns on and of f
10. All OK.