Warning System - Side & Rear Vision: Diagnosis Lincoln MKT I

Inspection and Verification

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical and electrical damage. VISUAL INSPECTION TABLE Mechanical Electrical Rear bumper cover Lower rear bumper quarter panel splash shield Smart Junction Box (SJB) fuse 35 (10A) Left and right exterior mirrors
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC). NOTE: Make sure to use the latest scan tool software release.
5. If the scan tool does not communicate with the vehicle: verify the ignition key is in the ON position. The air bag warning indicator prove-out confirms ignition ON (other indicators may NOT prove ignition is ON) confirms ignition ON. If ignition does not turn ON, refer to «STEERING COLUMN SWITCHES»(ref-356610) to diagnose no power in RUN. verify the scan tool operation with a known good vehicle. Refer to «MODULE COMMUNICATIONS NETWORK»(ref-356606) , Inspection and Verification to establish a scan tool session. NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM .
6. Carry out the self-test diagnostics for the Remote Function Actuator (RFA) module, Side Obstacle Detection Control Module - Left (SOD-L) and Side Obstacle Detection Control Module - Right (SOD-R). NOTE: The ignition must be OFF to carry out the RFA module self-test.
7. If the DTCs retrieved are related to the concern, go to DTC Tables. For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Table in «MULTIFUNCTION ELECTRONIC MODULES»(ref-356607) .
8. If no DTCs related to the concern are retrieved, GO to «SYMPTOM TABLE»(ref-356655-S11678859912010022500000) .

DTC Tables

Note. Refer to Description and Operation, Intelligent Access (IA) with Push Button Start in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) to review the procedures for achieving the various ignition states (ignition in accessory, ignition on, ignition start, ignition off) on vehicles with this feature.

Note. This module utilizes a 5-character DTC followed by a 2-character failure-type code. The failure-type code provides information about specific fault conditions such as opens, or shorts to ground. Continuous memory DTCs have an additional 2-character DTC status code suffix to assist in determining DTC history.

SIDE OBSTACLE DETECTION CONTROL MODULE - LEFT (SOD-L) AND SIDE OBSTACLE DETECTION CONTROL MODULE - RIGHT (SOD-R) DTC TABLE

Note. This module utilizes a 5-character DTC followed by a 2-character failure-type code. The failure-type code provides information about specific fault conditions such as opens, or shorts to ground. Continuous memory DTCs have an additional 2-character DTC status code suffix to assist in determining DTC history.

INSTRUMENT PANEL CLUSTER (IPC) DTC TABLE

Symptom Table

Note. Refer to Description and Operation, Intelligent Access (IA) with Push Button Start in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) to review the procedures for achieving the various ignition states (ignition in accessory, ignition on, ignition start, ignition off) on vehicles with this feature.

SYMPTOM TABLE

PINPOINT TEST A: BLIS™ IS INOPERATIVE/DOES NOT OPERATE CORRECTLY OR POOR PERFORMANCE AND NO MESSAGE CENTER WARNING MESSAGE OR WARNING LED INDICATORS PRESENT

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

1. A1 CARRY OUT THE SOD-L AND SOD-R DIAGNOSTIC SYSTEM CHECK Start the engine. Observe the left and right exterior mirror BLIS™ / CTA LEDs. Do the left and right BLIS™ /CTA LEDs illuminate and turn off after 3 seconds? Yes : GO to A2 . No : Go To «PINPOINT TEST D»(ref-356655-S15040391782010022500000) .
2. A2 VERIFY BLIS™ OPERATION Drive the vehicle and test BLIS™ to verify the customer's concern. Does BLIS™ operate correctly? Yes : The fault may have been caused by an intermittent condition such as poor weather conditions or customer's perception of how BLIS™ operates. REFER to the Owner's Manual. TEST the system for normal operation. No : GO to A3 .
3. A3 CHECK FOR SOD-L AND SOD-R OBSTRUCTIONS Check the lower rear side bumper cover fascia for a build up of mud, bumper stickers or any obstruction. Are any obstructions present? Yes : CLEAN and REMOVE all obstructions from the lower rear side bumper cover fascia and lower rear bumper cover splash shield. TEST the system for normal operation. No : GO to A4 .
4. A4 CHECK FOR DAMAGE TO THE LOWER REAR SIDE BUMPER COVER OR THE SOD-L AND SOD-R Check the lower rear side bumper cover fascia and the SOD-L and SOD-R mounting bracket for damage. Is any damage present? Yes : REPAIR or INSTALL any damaged parts. TEST the system for normal operation. No : GO to A5 .
5. A5 VERIFY THE SOD-L AND SOD-R PASS THE NETWORK TEST Enter the following diagnostic mode on the scan tool: Network Test. Verify that the SOD-L and SOD-R pass the network test. Do the SOD-L and/or SOD-R pass the network test? Yes : GO to A6 . No : For SOD-L , REFER to «MODULE COMMUNICATIONS NETWORK»(ref-356606) , The SOD-L Does Not Respond To The Scan Tool. For SOD-R , Go To «PINPOINT TEST E»(ref-356655-S40120291832010022500000) .
6. A6 VERIFY BLIS™ CONFIGURATION NOTE: BLIS™ must be enabled in both the SOD-L and the SOD-R or a fault condition will occur. Enter the following diagnostic mode on the scan tool: Programmable Parameters. Verify in the programmable parameters that BLIS™ is enabled in the SOD-L and SOD-R . Is BLIS™ enabled? Yes : GO to A7 . No : ENABLE BLIS™ in the SOD-L and SOD-R using the scan tool programmable parameters menu. TEST the system for normal operation.
7. A7 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND SOD-L AND SOD-R SELF-TESTS Check the SOD-L and SOD-R DTCs from the continuous and on-demand self-tests. Are any SOD-L and SOD-R DTCs recorded? Yes : REFER to «DTC TABLES»(ref-356655-S23567331822010022500000) . No : GO to A8 .
8. A8 CHECK FOR VEHICLE SPEED SIGNAL DTCs Enter the following diagnostic mode on the scan tool: IPC CMDTCs. Check for correct operation of the speedometer in the IPC . Are vehicle speed display faults and DTCs related to vehicle speed present? Yes : REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-356607) for a list of all DTCs. No : For an inoperative SOD-L , GO to A9 . For an inoperative SOD-R , GO to A10 .
9. A9 CHECK FOR CORRECT SOD-L OPERATION Disconnect the SOD-L connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-L connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-L . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
10. A10 CHECK FOR CORRECT SOD-R OPERATION Disconnect the SOD-R connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-R connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-R . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

PINPOINT TEST B: THE CTA SYSTEM IS INOPERATIVE/DOES NOT OPERATE CORRECTLY OR POOR PERFORMANCE AND NO WARNING LED INDICATORS PRESENT

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

1. B1 CARRY OUT THE SOD-L AND SOD-R DIAGNOSTIC SYSTEM CHECK Start the engine. Observe the left and right exterior mirror BLIS™ / CTA LEDs. Do the left and right BLIS™ /CTA LEDs illuminate and turn off after 3 seconds? Yes : GO to B2 . No : Go To «PINPOINT TEST D»(ref-356655-S15040391782010022500000) .
2. B2 VERIFY THE CTA SYSTEM OPERATION NOTE: The CTA system only operates in reverse (R) while backing out of a front-in parking space. Test the CTA system to verify the customer's concern. Does the CTA system operate correctly? Yes : The fault may have been caused by an intermittent condition such as poor weather conditions or customer's perception of how the CTA system operates. REFER to the Owner's Manual. TEST the system for normal operation. No : GO to B3 .
3. B3 CHECK FOR SOD-L AND SOD-R OBSTRUCTIONS Check the lower rear side bumper cover fascia and lower rear bumper cover splash shield for a build up of mud, bumper stickers or any obstruction. Are any obstructions present? Yes : CLEAN and REMOVE all obstructions from the lower rear side bumper cover fascia and lower rear bumper cover splash shield. TEST the system for normal operation. No : GO to B4 .
4. B4 CHECK FOR DAMAGE TO THE LOWER REAR SIDE BUMPER COVER OR THE SOD-L AND SOD-R Check the lower rear side bumper cover fascia and the SOD-L and SOD-R mounting bracket for damage. Is any damage present? Yes : REPAIR or INSTALL any damaged parts. TEST the system for normal operation. No : GO to B5 .
5. B5 VERIFY THE SOD-L AND SOD-R PASS THE NETWORK TEST Enter the following diagnostic mode on the scan tool: Network Test. Verify that the SOD-L and SOD-R pass the network test. Do the SOD-L and SOD-R pass the network test? Yes : GO to B6 . No : For SOD-L , REFER to «MODULE COMMUNICATIONS NETWORK»(ref-356606) , The SOD-L Does Not Respond To The Scan Tool. For SOD-R , Go To «PINPOINT TEST E»(ref-356655-S40120291832010022500000) .
6. B6 VERIFY THE CTA SYSTEM CONFIGURATION NOTE: The CTA must be enabled in both the SOD-L and the SOD-R . Enter the following diagnostic mode on the scan tool: Programmable Parameters. Verify that the CTA system is enabled in the SOD-L and SOD-R . Is the CTA system enabled? Yes : GO to B7 . No : ENABLE the CTA system in the SOD-L and SOD-R using the scan tool programmable parameters menu. TEST the system for normal operation.
7. B7 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND SOD-L AND SOD-R SELF-TESTS Check the SOD-L and SOD-R DTCs from the continuous and on-demand self-tests. Are any SOD-L and SOD-R DTCs recorded? Yes : REFER to «DTC TABLES»(ref-356655-S23567331822010022500000) . No : GO to B8 .
8. B8 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS Check the PAM DTCs from the continuous and on-demand self-tests. Are any PAM DTCs recorded? Yes : REFER to «PARKING AID»(ref-356653) . REPAIR all PAM DTCs and TEST the CTA system for normal operation. No : GO to B9 .
9. B9 CHECK FOR VEHICLE SPEED SIGNAL DTCs Enter the following diagnostic mode on the scan tool: IPC CMDTCs. Check for correct operation of the speedometer in the IPC . Are vehicle speed display faults and DTCs related to vehicle speed present? Yes : REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-356607) for a list of all DTCs. No : GO to B10 .
10. B10 CHECK FOR CORRECT PRNDL DISPLAY OPERATION Enter the following diagnostic mode on the scan tool: IPC CMDTCs. Check for correct operation of the PRNDL in the IPC . Are PRNDL display faults and DTCs related to the PRNDL present? Yes : REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-356611) . No : For an inoperative SOD-L , GO to B11 . For an inoperative SOD-R , GO to B12 .
11. B11 CHECK FOR CORRECT SOD-L OPERATION Disconnect the SOD-L connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-L connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-L . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
12. B12 CHECK FOR CORRECT SOD-R OPERATION Disconnect the SOD-R connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-R connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-R . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

PINPOINT TEST C: THE LEFT OR RIGHT EXTERIOR MIRROR BLIS™/CTA LED IS CONSTANTLY ON AND A MESSAGE IN THE IPC MESSAGE CENTER IS PRESENT, BUT NO DTCs ARE RECORDED

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

1. C1 VERIFY THE SOD-L AND SOD-R PASS THE NETWORK TEST Enter the following diagnostic mode on the scan tool: Network Test. Verify that the SOD-L and SOD-R pass the network test. Do the SOD-L and SOD-R pass the network test? Yes : GO to C2 . No : For SOD-L , REFER to «MODULE COMMUNICATIONS NETWORK»(ref-356606) , The SOD-L Does Not Respond To The Scan Tool For SOD-R , Go To «PINPOINT TEST E»(ref-356655-S40120291832010022500000) .
2. C2 CHECK FOR VEHICLE SPEED SIGNAL DTCs Enter the following diagnostic mode on the scan tool: IPC CMDTCs. Check for correct operation of the speedometer in the IPC . Are vehicle speed display faults and DTCs related to vehicle speed present? Yes : REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-356607) for a list of all DTCs. No : GO to C3 .
3. C3 CHECK FOR PRNDL DTCs Enter the following diagnostic mode on the scan tool: IPC CMDTCs. Check for correct operation of the PRNDL in the IPC . Are PRNDL display faults and DTCs related to the PRNDL present? Yes : REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-356611) . No : For a BLIS™ fault, Go To «PINPOINT TEST A»(ref-356655-S21158658482010022500000) . For a CTA system fault, GO to C4 .
4. C4 CHECK FOR PAM DTCs Enter the following diagnostic mode on the scan tool: PAM CMDTCs. Check DTCs in the PAM . Are DTCs present? Yes : REFER to «PARKING AID»(ref-356653) . No : Go To «PINPOINT TEST B»(ref-356655-S25180043772010022500000) .

Pinpoint Test D: DTC B11D6:11 Or DTC B11D6:15 (LED MAY ALWAYS BE ON)

Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 8

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

1. D1 CHECK THE DTCs FROM THE SOD-L AND SOD-R SELF-TESTS For a LH concern, check the SOD-L DTCs from the self-tests. For a RH concern, check the SOD-R DTCs from the self-tests. Are any SOD-L or SOD-R DTCs recorded? Yes : For DTC B11D6:11, GO to D2 . For DTC B11D6:15, GO to D5 . For all other DTCs, REFER to «DTC TABLES»(ref-356655-S23567331822010022500000) . No : GO to D6 .
2. D2 CHECK THE EXTERIOR MIRROR BLIS™ /CTA LED FOR A SHORT TO GROUND Ignition OFF. Disconnect: Left Exterior Mirror BLIS™ / CTA LED Connector (LH concern). Disconnect: Right Exterior Mirror BLIS™ / CTA LED Connector (RH concern). Ignition ON. NOTE: It is normal for DTC B11D6:15 to set when carrying out this step. It can be ignored. For a LH concern, clear the SOD-L DTCs. Repeat the self-test. For a RH concern, clear the SOD-R DTCs. Repeat the self-test. Is DTC B11D6:11 retrieved? Yes : GO to D3 . No : INSTALL a new exterior mirror glass for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . CLEAR any DTCs. TEST the system for normal operation.
3. D3 CHECK THE EXTERIOR MIRROR FOR A SHORT TO GROUND Ignition OFF. Disconnect: Left Exterior Mirror C516 (LH concern). Disconnect: Right Exterior Mirror C625 (RH concern). Ignition ON. NOTE: It is normal for DTC B11D6:15 to set when carrying out this step. It can be ignored. For a LH concern, clear the SOD-L DTCs. Repeat the self-test. For a RH concern, clear the SOD-R DTCs. Repeat the self-test. Is DTC B11D6:11 retrieved? Yes : GO to D4 . No : INSTALL a new exterior mirror for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . CLEAR any DTCs. TEST the system for normal operation.
4. D4 CHECK THE EXTERIOR MIRROR BLIS™/CTA LED SUPPLY CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Disconnect: SOD-L C4230 (LH concern). Disconnect: SOD-R C4229 (RH concern). For a LH concern, measure the resistance between the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side and ground. For a RH concern, measure the resistance between the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : For a LH concern, GO to D13 . For a RH concern, GO to D14 . No : REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
5. D5 CARRY OUT THE SOD-L AND SOD-R DIAGNOSTIC SYSTEM CHECK Start the engine. Observe the left and right exterior mirror BLIS™ / CTA LEDs. After 5 seconds does the LED in question remain illuminated? Yes : GO to D6 . No : GO to D8 .
6. D6 CHECK THE EXTERIOR MIRROR BLIS™/CTA LED SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SOD-L C4230 (LH concern). Disconnect: SOD-R C4229 (RH concern). Ignition ON. For a LH concern, measure the voltage between the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side and ground. For a RH concern, measure the voltage between the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side and ground. Is any voltage present? Yes : GO to D7 . No : For a LH concern, GO to D13 . For a RH concern, GO to D14 .
7. D7 CHECK THE EXTERIOR MIRROR FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: Left Exterior Mirror C516 (LH concern). Disconnect: Right Exterior Mirror C625 (RH concern). Ignition ON. For a LH concern, measure the voltage between the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side and ground. For a RH concern, measure the voltage between the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side and ground. Is any voltage present? Yes : REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation. No : INSTALL a new exterior mirror for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . CLEAR the DTCs. TEST the system for normal operation.
8. D8 CHECK THE EXTERIOR MIRROR GLASS BLIS™/CTA LED FOR AN OPEN Ignition OFF. Disconnect: Left Exterior Mirror BLIS™ / CTA LED Connector (LH concern). Disconnect: Right Exterior Mirror BLIS™ / CTA LED Connector (RH concern). For the exterior mirror glass LED in question, measure the resistance between the BLIS™ / CTA LED connector pin 1, component side and the BLIS™ / CTA LED connector pin 2, component side. Is the resistance less than 2000 ohms? Yes : GO to D9 . No : INSTALL a new exterior mirror glass for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . CLEAR the DTCs. TEST the system for normal operation.
9. D9 CHECK THE EXTERIOR MIRROR BLIS™/CTA LED SUPPLY CIRCUIT FOR AN OPEN Disconnect: SOD-L C4230 (LH concern). Disconnect: SOD-R C4229 (RH concern). For a LH concern, measure the resistance between the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side and the left exterior mirror BLIS™ / CTA LED connector pin 1, harness side. For a RH concern, measure the resistance between the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side and the right exterior mirror BLIS™ / CTA LED connector pin 1, harness side. Is the resistance less than 5 ohms? Yes : GO to D11 . No : GO to D10 .
10. D10 CHECK THE EXTERIOR MIRROR FOR AN OPEN Disconnect: Left Exterior Mirror C516 (LH concern). Disconnect: Right Exterior Mirror C625 (RH concern). For a LH concern, measure the resistance between the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side harness side, and the left exterior mirror C516-15, circuit CRB04 (YE/GN), harness side. For a RH concern, measure the resistance between the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side and the right exterior mirror C625-15, circuit CRB02 (BU/BN), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new exterior mirror for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . CLEAR the DTCs. TEST the system for normal operation. No : REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
11. D11 CHECK THE EXTERIOR MIRROR BLIS™/CTA LED GROUND CIRCUIT FOR AN OPEN Disconnect: Negative Battery Cable. For a LH concern, measure the resistance between the left exterior mirror BLIS™ / CTA LED connector pin 2, harness side and ground. For a RH concern, measure the resistance between the right exterior mirror BLIS™ / CTA LED connector pin 2, harness side and ground. Is the resistance less than 5 ohms? Yes : For a LH concern, GO to D13 . For a RH concern, GO to D14 . No : GO to D12 .
12. D12 CHECK THE EXTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN Disconnect: Left Exterior Mirror C516 (LH concern). Disconnect: Right Exterior Mirror C625 (RH concern). For a LH concern, measure the resistance between the left exterior mirror C516-16, circuit GD133 (BK), harness side and ground. For a RH concern, measure the resistance between the right exterior mirror C625-16, circuit GD145 (BK/BU), harness side and ground. Is the resistance less than 5 ohms? Yes : INSTALL a new exterior mirror for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . CLEAR the DTCs. TEST the system for normal operation. No : REPAIR the question. CLEAR the DTCs. TEST the system for normal operation.
13. D13 CHECK FOR CORRECT SOD-L OPERATION Connect all disconnected connectors. Disconnect the SOD-L connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-L connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-L . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
14. D14 CHECK FOR CORRECT SOD-R OPERATION Connect all disconnected connectors. Disconnect the SOD-R connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-R connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-R . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

Pinpoint Test E: The Side Obstacle Detection Control Module - Right (SOD-R) Does Not Respond To The Scan Tool Or Cannot Be Configured

Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

PINPOINT TEST E: THE SOD-R DOES NOT RESPOND TO THE SCAN TOOL OR CANNOT BE CONFIGURED

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connect. Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 15

1. E1 VERIFY THE SOD-R PASSES THE NETWORK TEST Enter the following diagnostic mode on the scan tool: Network Test. Verify that the SOD-R passes the network test. Does the SOD-R pass the network test? Yes : The system is operating correctly at this time. The concern may have been caused by high network traffic or an intermittent problem. TEST the system for normal operation. No : GO to E2 .
2. E2 CHECK THE SOD-R ADDRESS GROUND CIRCUIT FOR AN OPEN Disconnect: Negative Battery Cable. Disconnect: SOD-R C4229. Measure the resistance between the SOD-R C4229-6, circuit GD145 (BK/BU), harness side and ground. Is the resistance less than 5 ohms? Yes : CONFIGURE the SOD-R . REFER to «MODULE CONFIGURATION»(ref-356608) . No : REPAIR the circuit in question. TEST the system for normal operation.

PINPOINT TEST F: THE IPC MESSAGE CENTER DISPLAYS A BLOCKED SENSOR MESSAGE

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

1. F1 INSPECT THE REAR BUMPER FASCIA COVER FOR DAMAGE Inspect for damage on the rear bumper fascia cover. Is the rear bumper fascia cover damaged? Yes : For the rear bumper cover, REPAIR or REPLACE the rear bumper cover as necessary. REFER to «BUMPERS»(ref-356644) . For the SOD-L or the SOD-R bracket, REPAIR or REPLACE the SOD-L or the SOD-R bracket. REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : GO to F2 .
2. F2 INSPECT THE SOD-R AND SOD-L FOR DEBRIS, MUD, SNOW OR ICE Inspect for debris, mud, snow or ice on the rear bumper fascia cover and SOD-R and SOD-L module housing. Is the rear bumper fascia cover and radar unit obstructed or blocked due to the concerns above? Yes : REMOVE and CLEAN the rear bumper fascia cover and module as necessary. Once the vehicle is cleaned, complete one key cycle and test drive the vehicle. The blocked module needs to detect an unblocked situation or 2 good detected vehicles or targets before clearing. TEST the system for normal operation. No : For an inoperative SOD-L , GO to F3 . For an inoperative SOD-R , GO to F4 .
3. F3 CHECK FOR CORRECT SOD-L OPERATION Disconnect the SOD-L connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-L connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-L . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
4. F4 CHECK FOR CORRECT SOD-R OPERATION Disconnect the SOD-R connector. Check for: corrosion damaged pins pushed-out pins Connect the SOD-R connector and make sure it seats correctly. Operate the system and verify the concern is still present. Is the concern still present? Yes : INSTALL a new SOD-R . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

PINPOINT TEST G: THE BLIS™ AND CTA SYSTEM CANNOT BE TURNED OFF IN THE IPC MESSAGE CENTER

1. G1 CHECK THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND IPC, SOD-R AND SOD-L SELF-TESTS Check the IPC , SOD-R and SOD-L DTCs from the continuous and on-demand self-tests. Are any IPC, SOD-R or SOD-L DTCs recorded? Yes : For IPC DTCs, REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-356611) . REPAIR all IPC DTCs and RETEST the BLIS™ and CTA system for normal operation. For SOD-R or SOD-L DTCs, REFER to the «DTC TABLES»(ref-356655-S23567331822010022500000) . No : GO to G2 .
2. G2 CHECK THE MESSAGE CENTER FOR CORRECT OPERATION Check the IPC message center for correct operation, while turning the BLIS™ and CTA system off and on. Does the message center operate correctly? Yes : The system is operating correctly at this time. No : REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-356611) to diagnose the IPC message center not operating correctly.

PINPOINT TEST H: DTC U3000:44 OR DTC U3000:49

1. H1 CHECK THE SOD-R and SOD-L FOR DTCs Ignition ON. Enter the following diagnostic mode on the scan tool: SOD-R and SOD-L Module Self-Test. Clear the DTCs. Ignition OFF. Wait 5 seconds Ignition ON. Repeat the SOD-R and SOD-L module self-test. Is DTC U3000:44 or DTC U3000:49 still present? Yes : INSTALL a new SOD-R or SOD-L . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by an intermittent problem.

Pinpoint Test I: The Left Or Right Exterior Mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LED Appears Dim Or Does Not Illuminate With No DTC Or Message In The Instrument Panel Cluster (IPC) Message Center Present

Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

PINPOINT TEST I: THE LEFT OR RIGHT EXTERIOR MIRROR BLIS™/CTA LED APPEARS DIM OR DOES NOT ILLUMINATE WITH NO DTC OR MESSAGE IN THE IPC MESSAGE CENTER PRESENT

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

Scheme 16

Scheme 17

Scheme 18

Scheme 19

1. I1 VERIFY THE CUSTOMER'S CONCERN Carry out the diagnostic system check. Start the engine. Observe the left and right exterior mirror BLIS™ / CTA LEDs and compare the illumination in each mirror. Is one LED noticeably dimmer than the other? Yes : GO to I2 . No : The concern may be due to customer perception or ambient lighting conditions. TEST the system for normal operation.
2. I2 VERIFY THE EXTERIOR MIRROR BLIS™/CTA LED OPERATION Ignition OFF. Apply the park brake. Ignition ON. Select REVERSE. Enter the following diagnostic mode on the scan tool: SOD-R and/or SOD-L DataLogger. NOTE: The SOD-R and SOD-L are separate modules and the active command PID needs to be commanded on in each individual module. Select the SOD-R or SOD-L PID (CTALERT) and active command the LED ON. Observe the left and/or right exterior mirror BLIS™ / CTA LED and message center. Does the LED blink brightly and a message in the message center display "CTA ALERT"? Yes : The concern may be due to customer perception, ambient lighting conditions or system functionality. TEST the system for normal operation. No : GO to I3 .
3. I3 CHECK THE SOD-R OR SOD-L VOLTAGE SUPPLY CIRCUIT Ignition OFF. Disconnect: SOD-L C4230 (LH concern). Disconnect: SOD-R C4229 (RH concern). Ignition ON. For a LH concern, measure the voltage between the SOD-L C4230-2, circuit CBP35 (YE/GY), harness side and ground. For a RH concern, measure the voltage between the SOD-R C4229-2, circuit CBP35 (YE/GY), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to I4 . No : REPAIR the circuit. TEST the system for normal operation.
4. I4 CHECK THE SOD-R OR SOD-L GROUND CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: Negative Battery Cable. For a LH concern, measure the resistance between the SOD-L C4230-5, circuit GD133 (BK), harness side and ground. For a RH concern, measure the resistance between the SOD-R C4229-5, circuit GD145 (BK/BU), harness side and ground. Is the resistance less that 5 ohms? Yes : GO to I5 . No : REPAIR the circuit. TEST the system for normal operation.
5. I5 CHECK THE SUSPECTED EXTERIOR MIRROR BLIS™/CTA LED FOR ILLUMINATION Connect: Negative Battery Cable. Ignition OFF. For a LH concern, connect a fused jumper wire between the SOD-L C4230-2, circuit CBP35 (YE/GY), harness side and the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side. For a RH concern, connect a fused jumper wire between the SOD-R C4229-2, circuit CBP35 (YE/GY), harness side and the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side. Ignition ON. Does the LED appear dim? Yes : GO to I6 . No : For a LH concern, INSTALL a new SOD-L . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation. For a RH concern, INSTALL a new SOD-R . REFER to «SIDE OBSTACLE DETECTION (SOD) MODULE»(ref-356655-S09142422262010022500000) . TEST the system for normal operation.
6. I6 CHECK THE SUSPECTED EXTERIOR MIRROR BLIS™/CTA LED CIRCUITS FOR AN OPEN Ignition OFF. Disconnect: Left Exterior Mirror BLIS™ / CTA LED Connector (LH concern). Disconnect: Right Exterior Mirror BLIS™ / CTA LED Connector (RH concern). Ignition ON. For a LH concern, measure the voltage between the left exterior mirror BLIS™ / CTA LED connector pin 1, harness side and the left exterior mirror BLIS™ / CTA LED connector pin 2, harness side. For a RH concern, measure the voltage between the right exterior mirror BLIS™ / CTA LED connector pin 1, harness side and the right exterior mirror BLIS™ / CTA LED connector pin 2, harness side. Is the voltage greater than 10 volts? Yes : INSTALL a new exterior mirror glass for the one in question. REFER to «REAR VIEW MIRRORS»(ref-356624) . TEST the system for normal operation. No : GO to I7 .
7. I7 CHECK THE SUSPECTED EXTERIOR MIRROR BLIS™/CTA LED VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Ignition OFF. For a LH concern, measure the resistance between the SOD-L C4230-1, circuit CRB04 (YE/GN), harness side and left exterior mirror BLIS™ / CTA LED connector pin 1, harness side. For a RH concern, measure the resistance between the SOD-R C4229-1, circuit CRB02 (BU/BN), harness side and the right exterior mirror BLIS™ / CTA LED connector pin 1, harness side. Is the resistance less than 5 ohms? Yes : For a LH concern, REPAIR circuit GD133 (BK) for an open. TEST the system for normal operation. For a RH concern, REPAIR circuit GD145 (BK/BU) for an open. TEST the system for normal operation. No : For a LH concern, REPAIR circuit CRB04 (YE/GN) for an open. TEST the system for normal operation. For a RH concern, REPAIR circuit CRB02 (BU/BN) for an open. TEST the system for normal operation.