Object Detection System and Pedestrian Protection System: Diagnosis GMC Acadia I рестайлинг

Diagnostic Code Index

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts

Conditions for Setting the DTC

The BCM detects there is a short to ground or an open circuit.

Action Taken When the DTC Sets

Rearview camera is disabled.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the rearview camera.
2. Ignition ON, park brake applied, transmission in REVERSE, test for B+ between the B+ circuit terminal 3 and ground. If less than the specified value, test the B+ circuit for a short to ground or an open/high resistance.
3. If all circuits test normal, replace the BCM.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

Ignition ON.

The control module has detected a malfunction.

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-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) 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.

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 the 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. 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, it may take up to 2 minutes for all vehicle systems to power down.
2. Remove the appropriate outside rearview mirror glass and disconnect the harness connector at the glass.
3. 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
4. Ignition ON, connect a test lamp between the control circuit terminal 2 and ground.
5. 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 X3 and X7 harness connectors at the appropriate Door Lock/Window Switch. 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 appropriate Door Lock/Window Switch. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the appropriate Door Lock/Window Switch, 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 appropriate Door Lock/Window Switch. If the test lamp turns ON and OFF
6. Test or replace the appropriate Outside Rearview Mirror Glass.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using the diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

1. DTC B1325 is not set
2. Ignition voltage is between 9-16 V
3. Transmission in REVERSE

B0958 01, B0959 01, B0960 01 or B0961 01

Voltage seen on the object alarm sensor signal circuit is greater than 11.5 V or the object alarm sensor is not grounded.

B0958 06, B0959 06, B0960 06 or B0961 06

Voltage seen on the object alarm sensor signal circuit is less than 0.5 V.

B0958 08, B0959 08, B0960 08 or B0961 08

An invalid signal is received by the object alarm module.

B0958 21, B0959 21, B0960 21 or B0961 21

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

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

The object alarm module determines there is an incorrect sensor installed.

1. The parking assist system is disabled.
2. The object alarm module sends a serial data message to the instrument panel cluster (IPC) to display SERVICE PARK ASSIST message in the driver information center (DIC).

1. The DTC will transition to history when the fault is no longer present.
2. A history DTC will clear after 100 malfunction-free ignition cycles.

Make sure the object alarm sensors located on the vehicle rear bumper are clear. Remove any snow, mud or ice that is blocking the sensors.

Single Object Alarm Sensor DTC Set

1. Ignition OFF, disconnect the harness connector at the appropriate object alarm sensor.
2. Ignition OFF for 30 seconds, test for less than 20 ohms between the low reference circuit terminal 2 and ground. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the object alarm module.
3. Ignition ON, transmission in REVERSE, test for 8.0-9.0 V between the voltage reference circuit terminal 1 and ground. If greater than the specified range, test the voltage reference circuit for a short to voltage. If the circuit tests normal, replace the object alarm module. If less than the specified range, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the object alarm module.
4. Ignition OFF, remove the malfunctioning object alarm sensor and swap locations with another properly functioning object alarm sensor. Connect the harness connector at both sensors.
5. Ignition ON, verify the DTC is set for the new location in which the malfunctioning object alarm sensor is installed. If the DTC does not set for the new location, test the signal circuit terminal 3 for a short to voltage, short to ground or an open/high resistance. If the circuit tests normal, replace the object alarm module.
6. If the DTC sets for the new location in which the malfunctioning object alarm sensor is installed, replace the appropriate object alarm sensor.

Multiple Object Alarm Sensor DTCs Set

1. Ignition OFF, disconnect the harness connector at each of the object alarm sensors.
2. Ignition OFF for 30 seconds, test for less than 20 ohms between the low reference circuit terminal 2 and ground. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the object alarm module.
3. Ignition ON, transmission in REVERSE, test for 8.0-9.0 V between the voltage reference circuit terminal 1 and ground. If greater than the specified range, test the voltage reference circuit for a short to voltage. If the circuit tests normal, replace the object alarm module. If less than the specified range, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the object alarm module.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

Ignition ON.

The frontview camera module has detected a short to battery or open/high resistance in the control circuit.

1. Lane departure warning is disabled.
2. SERVICE FRONT CAMERA is displayed on the driver information center.

The condition for setting the DTC is no longer present.

1. Ignition OFF, disconnect the harness connector at the S16 Driver Information Center Switch, ignition ON.
2. Verify a test lamp illuminates when placed between the PWM voltage control terminal 12 and ground. NOTE: Verify vehicle interior dimming control is set all the way bright. If test lamp does not illuminate Refer to «Interior Backlighting Malfunction»(ref-610090-S02728378682014042100000) If the test lamp illuminates
3. Connect a test lamp between PWM voltage control circuit terminal 12 and the control circuit terminal 13
4. Verify the test lamp turns ON and OFF while commanding the Lane Departure Warning Switch Indicator output control On and Off with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module. 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 K109 Frontview Camera Module. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the K109 Frontview Camera 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 K109 Frontview Camera Module. If the test lamp turns ON and OFF
5. Test or replace the S16 Driver Information Center Switch.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) 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 4 disable history buffers, the invalid steering wheel angle sensor will age out if 4 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. Clutch Pedal Position (CPP) Sensor Performance
14. Transmission Gear Engaged
15. Acceleration Sensor Longitudinal Signal
16. Invalid Data Received From Yaw Rate Sensor Module
17. Power Mode Controlled by Backup Device
18. System Power Mode
19. Overvoltage
20. Undervoltage
21. Undefined

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

1. Verify the scan tool Front View Camera Module Disable History displays no current malfunction. Refer to «Diagnostic Aids»(ref-610100-S04758476062014042100000) . If a current malfunction is displayed, diagnose the system that sets the malfunction.
2. If no malfunction is displayed in the Front View Camera Module Disable History, refer to «Lane Departure Warning System Malfunction»(ref-610100-S25968226972014042100000) and «Forward Collision Alert System Malfunction»(ref-610100-S39922187342014042100000) .

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

1. DTC B1325 is not set
2. Ignition voltage is between 9-16 volts

The VIN stored in the object alarm module does not match the received VIN.

1. The parking assist system is disabled.
2. The object alarm module sends a serial data message to the instrument panel cluster (IPC) to display SERVICE PARK ASSIST message in the driver information center (DIC).

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

1. Ignition ON
2. Transmission in REVERSE

B1405 02

The parking assist control module has detected the 8 V reference circuit is shorted to ground.

B1405 03

The parking assist control module has detected the 8 V reference circuit is less than 6.3 V.

B1405 07

The parking assist control module has detected the 8 V reference circuit is greater than 10.4 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 the harness connector at each of the object sensors.
2. Ignition ON, transmission in REVERSE, test for 6.3-10.4 V between the 8 V reference circuit terminal 1 at the rear object sensor harness connector and ground. If less than the specified range, test the 8 V reference circuit for a short to ground. If the circuit tests normal, replace the rear object alarm module. If greater than the specified range, test the 8 V reference circuit for a short to voltage. If the circuit tests normal, replace the rear object alarm module.
3. Install each object alarm sensor harness connector one at a time, checking DTCs after each sensor is connected. Verify DTC B1405 is not set as current. If the DTC is set, replace the object alarm sensor that was connected immediately before the DTC set.
4. If all circuits test normal, replace the rear object alarm module.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

Ignition ON

The frontview camera module has detected a short to ground for more than 8 s.

1. Lane departure and forward collision warning features are disabled.
2. Service Front Camera is displayed on the driver information center.

The condition for setting the DTC is no longer present.

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S16 Driver Information Center Switch. 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 7 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 Lane Departure Warning Switch Status parameter is Open. If not Open Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module. Test for infinite resistance between the signal circuit terminal 14 at the S16 Driver Information Center Switch 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 Open
5. Reconnect the harness at S16 Driver Information Center Switch. Ignition ON.
6. Verify the scan tool Lane Departure Warning Switch Status parameter while pressing and releasing the vehicle direction warning switch. The parameter should change between Open and Closed. If the parameter does not change Test or replace the S16 Driver Information Center Switch. If the parameter changes
7. All OK.

Component Test

Static Test

1. Ignition OFF, disconnect the harness connector at the S16 Driver Information Center Switch.
2. Test for infinite resistance between the control circuit terminal 14 and ground circuit terminal 7. If less than infinite resistance Replace the S16 Driver Information Center Switch. If infinite resistance
3. Test for 1.0k - 1.5k ohms between the control circuit terminal 2 and ground circuit terminal 7 while pressing forward collision alert switch. If not between 1.0k - 1.5k ohms Replace the S16 Driver Information Center Switch. If between 1.0k - 1.5k ohms
4. Test for 3.8k - 5.8k ohms between the control circuit terminal 2 and ground circuit terminal 7 while pressing lane departure warning switch. If not between 3.8k - 5.8k ohms Replace the S16 Driver Information Center Switch. If between 3.8k - 5.8k ohms
5. All OK.

Visual/Physical Inspection

1. Inspect for aftermarket devices which may affect the operation of the system. Refer to «Checking Aftermarket Accessories»(ref-610066-S23886117082014042100000) .
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-610100-S39922187342014042100000)
2. «Lane Departure Warning System Malfunction»(ref-610100-S25968226972014042100000)
3. «Parking Assist System Malfunction»(ref-610100-S14907953422014042100000)
4. «Rear Cross Traffic Alert System Malfunction»(ref-610100-S39628154422014042100000)
5. «Rear Vision Camera System Malfunction (with Navigation or Touchscreen Radio)»(ref-610100-S36128903742014042100000) , «Rear Vision Camera System Malfunction (without Navigation or Touchscreen Radio)»(ref-610100-S11993206882014042100000)
6. «Side Blind Spot Alert System Malfunction»(ref-610100-S12208647002014042100000)

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

Certain factors will affect the operation of the forward collision alert system. Forward collision alert does not warn the driver of any objects that are not detected as a vehicle, like e.g. pedestrians, animals, signs, guard rails, bridges, construction barrels or other stationary or slow moving objects. In some cases the camera may detect a vehicle that is not in the path ahead or the system may occasionally provide unrealistic alerts. This could respond to 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 or if the view of the front view 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, the Front View Camera Disable History can give useful hints about what affected the operation of the lane departure warning system. For the Front View Camera Disable History refer to DTC B1011 .

Note. You must perform Circuit/System Verification before proceeding with Circuit/System Testing.

Frontview Camera Module Malfunction

1. Ignition ON.
2. Verify no DTCs are set. If DTCs are set Diagnose and repair DTCs. Refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-610038-S14557891142014042100000) . If no DTCs are set
3. 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 K109 Frontview Camera Module.
4. 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
5. 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
6. Ignition ON.
7. Test for less than 1 V between the signal circuit terminal 10 and ground. If 1 V or greater Disconnect the harness connector at S16 Driver Information Center Switch. Test for less than 1V Between the signal circuit terminal 10 and ground. If 1V or greater, repair the short to voltage on the signal circuit. If less than 1 V
8. Ignition OFF.
9. Test for infinite resistance between the signal circuit terminal 10 and ground with the forward collision alert switch not pressed. If less than infinite resistance Disconnect the harness connector at the S16 Driver Information Center Switch. 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 or replace the S16 Driver Information Center Switch. If infinite resistance
10. Test for 1.2k-1.4k ohms between the signal circuit terminal 10 and ground with the forward collision alert switch pressed. If not between 1.2k-1.4k ohms Disconnect the harness connector at the S16 Driver Information Center Switch Test for less than 2 ohms in the signal circuit from end to end. If greater than 2 ohms Repair the open/high resistance in the circuit. If 2 ohms or less If between 1.2k-1.4k ohms
11. Connect the harness connector of the S16 Driver Information Center Switch and K109 Frontview Camera Module.
12. Verify the scan tool Forward Collision Alert Function Status parameter is Off, Disabled, Not Ready To Assist or Ready To Assist. If parameter is Malfunction Replace K109 Frontview Camera Module. If parameter is not Malfunction
13. All OK.

Forward Collision Alert Switch 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 S16 Driver Information Center Switch.
2. Test for less than 10 ohms between the ground circuit terminal 7 and ground. If 5 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 5 ohms
3. Ignition ON.
4. Verify the scan tool Lane Departure Warning Switch Status parameter is Open. If not Open Ignition OFF, disconnect the harness connector at the K109 Vehicle Camera Module. Test for infinite resistance between the signal circuit terminal 14 at the S16 Driver Information Center Switch and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Vehicle Camera Module. If Open
5. Connect the harness connector at the S16 Driver Information Center Switch, ignition ON.
6. Verify the driver information center displays and adjusts forward collision alert setting while repeatedly pressing and releasing the forward collision switch. The setting should cycle between far, medium, near and off. If the display does not change Test or replace the S16 Driver Information Center Switch. If the display changes
7. All OK.

Forward Collision Alert Indicators 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 P43 Collision Alert Indicators.
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, verify the fuse is OK 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 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 B+.
6. Verify the test lamp turns ON and OFF when commanding the Instrument Cluster All Indicators control function ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, remove the test lamp and disconnect the harness connector at the P16 Instrument Cluster. 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, remove the test lamp and 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.

Static Test

1. Ignition OFF, disconnect the harness connector at the S16 Driver Information Center Switch.
2. Test for infinite resistance between the control circuit terminal 14 and ground circuit terminal 7. If less than infinite resistance Replace the S16 Driver Information Center Switch. If infinite resistance
3. Test for 1.0k - 1.5k ohms between the control circuit terminal 2 and ground circuit terminal 7 while pressing forward collision alert switch. If not between 1.0k - 1.5k ohms Replace the S16 Driver Information Center Switch. If between 1.0k - 1.5k ohms
4. Test for 3.8k - 5.8k ohms between the control circuit terminal 2 and ground circuit terminal 7 while pressing lane departure warning switch. If not between 3.8k - 5.8k ohms Replace the S16 Driver Information Center Switch. If between 3.8k - 5.8k ohms
5. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

When the "Park Assist Off", "Park Asst Blocked See Owner's Manual" or "Park Assist Blocked See Owner's Manual" message is displayed in the DIC the disable reason is stored in the Park Assist Disable History.

The scan tool Park Assist Disable History parameters are a list of the seven previous reasons the park 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 by the vehicle operator through the DIC.
2. Hitch/Object Attached - The object alarm module is detecting an object is attached to the vehicle. Common items such as a hitch receiver, trailer, object hanging out of liftgate 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 object alarm 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 traveling too fast in reverse at speeds of greater than 8 km/h (5 mph).
4. Inhibit - The object alarm module has lost or received invalid GMLAN signal(s).
5. Sensor Disturbance - An outside interference is causing sensor movement. Such interference may be caused by a heavy pounding, like that of a nearby jackhammer or large changes in pressure, such as a large truck's air brakes.
6. Sensor Ring Time - If the sensor fails its own diagnostic initialization the object alarm 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 might 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.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

1. The rear cross traffic alert system uses the same side blind zone sensors 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 or reprogrammed 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. A blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information message stating that the side detection system is temporarily unavailable will be displayed. The rear cross traffic 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.
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 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.
6. 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. The system may also temporarily disable the system and display the "Side Detection System Unavailable" message.

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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - Right.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) 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.

Rearview Camera System Always On

1. Ignition OFF, disconnect the harness connector at the rearview camera.
2. Ignition ON, vehicle in PARK, verify a test lamp does not illuminate between the control circuit terminal 3 and ground. If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, refer to «Backup Lamps Malfunction»(ref-610090-S03724507112014042100000) .
3. If all circuits test normal, test or replace the rearview camera.

Rearview Camera System Does Not Display

1. Ignition OFF, disconnect the harness connector at the rearview camera.
2. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Engine running, verify a test lamp illuminates between the ignition circuit terminal 6 and ground. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
4. Park brake applied, transmission in REVERSE, engine running, verify a test lamp illuminates between control circuit terminal 3 and ground. If test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
5. Ignition OFF, disconnect the X4 harness connector at the radio.
6. Engine running, test for less than 1 V between the following signal circuit terminals at the rearview camera harness connector and ground: Signal (+) circuit terminal 1 Signal (-) circuit terminal 4 If greater than the specified range, test the signal circuit for a short to voltage.
7. Test for infinite resistance between the following circuit terminals at the rearview camera harness connector and ground: Signal (+) circuit terminal 1 Signal (-) circuit terminal 4 If not the specified value, test the circuit for a short to ground.
8. Test for less than 2 ohms between the signal (+) circuit terminal 1 at the rearview camera harness connector and the signal (+) circuit terminal 6 at the radio harness connector If greater than the specified range, test the signal circuit for an open/high resistance.
9. Test for less than 2 ohms between the signal (-) circuit terminal 4 at the rearview camera harness connector and the signal (-) circuit terminal 7 at the radio harness connector. If greater than the specified range, test the signal circuit for an open/high resistance.
10. If all circuits test normal, test or replace the rearview camera.
11. Engine running, transmission in REVERSE, verify a clear rear vision image is displayed on the radio. If a clear rear vision image is not displayed, replace the radio.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) 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.

Rearview Camera System Always On

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the rearview camera.
2. Engine running, transmission in park.
3. Verify a test lamp does not illuminate between the control circuit terminal 9 and ground. If the test lamp illuminates Ignition OFF, disconnect the harness connector at the BCM, ignition ON. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage in the circuit. If less than 1 V, refer to «Backup Lamps Malfunction»(ref-610090-S03724507112014042100000) . If the test lamp does not illuminate
4. Replace the rearview camera.

Rearview Camera System Does Not Display

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the inside rearview mirror. 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 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. Engine running with the drive wheels chocked, set the park brake and place the transmission in reverse.
4. Verify a test lamp illuminates between the control circuit terminal 9 and ground. If the test lamp does not illuminate Ignition OFF, disconnect the harness connector at the BCM, ignition ON. 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 «Backup Lamps Malfunction»(ref-610090-S03724507112014042100000) . If the test lamp illuminates
5. Ignition OFF, connect a DMM between the signal circuit terminal 6 and the signal circuit terminal 7. Set the DMM to the AC voltage mode and press the Hz button to measure frequency. Ignition ON. NOTE: Use only the J39200 DMM. Using a DMM other than the J39200 may result in an inaccurate measurement and lead to a misdiagnosis.
6. Engine running with the drive wheels chocked, set the park brake and place the transmission in reverse.
7. Verify the frequency is between 1 Khz and 100 Khz. If the frequency is not between 1 Khz and 100 Khz Ignition OFF, disconnect the harness connector at the rearview camera. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10 ohms between the ground circuit terminal 5 and ground. If 10 ohms or greater, test the ground circuit for an open/high resistance. If less than 10 ohms Ignition ON. 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, test the ignition circuit for an open/high resistance. If the test lamp does not illuminate and the circuit fuse is open, test the ignition circuit for a short to ground. If the circuit tests normal, replace the rearview camera. If the test lamp illuminates Engine running with the drive wheels chocked, set the park brake and place the transmission in reverse. Verify a test lamp illuminates between the control circuit terminal 3 and ground. If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If the test lamp illuminates. Ignition ON. Test for less than 1 V between the signal circuits listed below and ground. Terminal 1 Terminal 4 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 circuits listed below and ground. Terminal 1 Terminal 4 If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance. Test for less than 2 ohms in the signal circuits listed below end to end. Terminal 1 at the rearview camera harness connector and terminal 6 at the inside rearview mirror harness connector Terminal 4 at the rearview camera harness connector and terminal 7 at the inside rearview mirror harness connector If 2 ohms or greater, repair the open/high resistance on the circuit. If less than 2 ohms. Replace the rearview camera. If the frequency is between 1 Khz and 100 Khz
8. Connect the harness connector at the inside rearview mirror.
9. Engine running with the drive wheels chocked, set the park brake and place the transmission in reverse.
10. Verify a clear rear vision image is displayed on the inside rearview mirror. If a clear image is not displayed Replace the inside rearview mirror. If a clear image is displayed
11. All OK.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) 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 or reprogrammed 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - 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 Side Object Sensor - Right.

Left Side Object Indicator Malfunction

1. Ignition OFF and all vehicle systems OFF, it may take up to 2 minutes for all vehicle systems to power down.
2. Disconnect the X2 harness connector at the Outside Rearview Mirror - Driver.
3. Test for less than 10 ohms between the low reference circuit terminal 9 and ground. If 10 ohms or greater Ignition OFF. 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, repair the open/high resistance in the ground connection. If less than 10 ohms
4. Ignition ON, connect a test lamp between the control circuit terminal 8 and ground.
5. Verify the test lamp turns ON and OFF when commanding the Object Detection Alert Indicator ON and OFF with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the X3 and X7 harness connectors at the Door Lock/Window Switch - Driver. 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 Door Lock/Window Switch - Driver. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the Door Lock/Window Switch - Driver, 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 Door Lock/Window Switch - Driver. If the test lamp turns ON and OFF
6. Test or replace the Outside Rearview Mirror Glass - Driver.

Right Side Object Indicator Malfunction

1. Ignition OFF and all vehicle systems OFF, it may take up to 2 minutes for all vehicle systems to power down.
2. Disconnect the harness connector X1 at the Outside Rearview Mirror - Passenger.
3. Test for less than 10 ohms between the low reference circuit terminal 9 and ground. If 10 ohms or greater Ignition OFF. 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, repair the open/high resistance in the ground connection. If less than 10 ohms
4. Ignition ON, connect a test lamp between the control circuit terminal 8 and ground.
5. 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 X3 and X7 harness connectors at the Door Lock/Window Switch - Passenger. 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 Door Lock/Window Switch - Passenger. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the Door Lock/Window Switch - Passenger, 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 Door Lock/Window Switch - Passenger. If the test lamp turns ON and OFF
6. Test or replace the appropriate Outside Rearview Mirror Glass - Passenger.

1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) 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 green lane departure 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 green lane departure indicator will not appear when the system is having difficulty seeing the lines on the road or if the view of the camera on the windshield 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 Front View Camera Disable History can give useful hints about what affected the operation of the lane departure warning system. For the Front View Camera Disable History, refer to DTC B1011 .

Lane Departure Warning Switch Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S16 Driver Information Center Switch. 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 7 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 Lane Departure Warning Switch Status parameter is Open. If not Open Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module. Test for infinite resistance between the signal circuit terminal 14 at the S16 Driver Information Center Switch 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 Open
5. Reconnect the harness at S16 Driver Information Center Switch. Ignition ON.
6. Verify the scan tool Lane Departure Warning Switch Status parameter while pressing and releasing the vehicle direction warning switch. The parameter should change between Open and Closed. If the parameter does not change Test or replace the S16 Driver Information Center Switch. If the parameter changes
7. All OK.

Lane Departure Warning Switch Indicator Malfunction

1. Ignition OFF, disconnect the harness connector at the S16 Driver Information Center Switch, ignition ON.
2. Verify a test lamp illuminates when placed between the PWM voltage control terminal 12 and ground. NOTE: Verify vehicle interior dimming control is set all the way bright. If test lamp does not illuminate Refer to «Interior Backlighting Malfunction»(ref-610090-S02728378682014042100000) If the test lamp illuminates
3. Connect a test lamp between PWM voltage control circuit terminal 12 and the control circuit terminal 13
4. Verify the test lamp turns ON and OFF while commanding the Lane Departure Warning Switch Indicator output control On and Off with a scan tool. If the test lamp is always OFF Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module. 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 K109 Frontview Camera Module. If the test lamp is always ON Ignition OFF, disconnect the harness connector at the K109 Frontview Camera 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 K109 Frontview Camera Module. If the test lamp turns ON and OFF
5. Test or replace the S16 Driver Information Center Switch.

Static Test

1. Ignition OFF, disconnect the harness connector at the S16 Driver Information Center Switch.
2. Test for infinite resistance between the control circuit terminal 14 and ground circuit terminal 7. If less than infinite resistance Replace the S16 Driver Information Center Switch. If infinite resistance
3. Test for 1.0k - 1.5k ohms between the control circuit terminal 2 and ground circuit terminal 7 while pressing forward collision alert switch. If not between 1.0k - 1.5k ohms Replace the S16 Driver Information Center Switch. If between 1.0k - 1.5k ohms
4. Test for 3.8k - 5.8k ohms between the control circuit terminal 2 and ground circuit terminal 7 while pressing lane departure warning switch. If not between 3.8k - 5.8k ohms Replace the S16 Driver Information Center Switch. If between 3.8k - 5.8k ohms
5. All OK.