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

Collision/avoidance ~1587 words

Principles of Operation

Note. The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

Note. When a MyKey™ is in use, the BLIS™ and CTA system cannot be turned off in the IPC .

Note. If the vehicle is towing a trailer, the Blind Spot Information System (BLIS™) or Cross Traffic Alert (CTA) system might detect the trailer, causing a false alert.

Note. The BLIS™ and CTA system both utilize the Side Obstacle Detection Control Module - Left (SOD-L), Side Obstacle Detection Control Module - Right (SOD-R) and the exterior mirror BLIS™ / CTA LEDs.

The SOD-L and SOD-R run a self diagnostic check on each vehicle start cycle and illuminate the exterior mirror BLIS™ / CTA amber LED for approximately 3 seconds indicating that the BLIS™ and CTA is operational. For BLIS™ , the exterior mirror BLIS™ / CTA LED is at 95 percent illumination to be seen clearly during the day and is dimmed down to 10 percent at night. For the CTA system, the exterior mirror BLIS™ / CTA LED is always at 85 percent illumination.

Normal Operation

On each ignition cycle, the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) run a self diagnostic check during which the exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LEDs illuminate for 3 seconds then turn off indicating the system is operational. BLIS™ is enabled when the ignition switch is in the RUN position and the DRIVE (D) gear is selected.

Note. BLIS™ is turned off for one key cycle only when using the message center switches. Permanently disabling BLIS™ is carried out in the Integrated Diagnostic System (IDS) programmable parameters menu.

The SOD-R and SOD-L receive a drive gear input and a vehicle speed signal message from the Instrument Panel Cluster (IPC) through the Medium Speed Controller Area Network (MS-CAN). The system can be disabled through the message center which is part of the IPC .

The SOD-L and SOD-R are identical modules except that the SOD-R uses an address ground pin for configuration. The address ground is necessary so that BLIS™ can decipher between the SOD-L and SOD-R .

BLIS™ can miss vehicles in the blind zone, indicate false alerts and operate poorly due to extreme weather conditions or a build up of debris over the SOD-L and SOD-R .

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. BLIS™ is not configured on with the scan tool
  3. IPC
  4. SOD-L
  5. SOD-R
  6. Vehicle speed signal

On each ignition cycle, the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) run a self diagnostic check during which the exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LEDs illuminate for 3 seconds then turn off indicating the system is operational. The CTA system is enabled when the ignition switch is in the RUN position and the REVERSE (R) gear is selected. For non-hybrid and late build hybrid vehicles, the system can be turned off through the message center which is part of the Instrument Panel Cluster (IPC).

Note. The CTA system is turned off for one key cycle only when using the message center switches. Permanently disabling the CTA system is carried out in the Integrated Diagnostic System (IDS) programmable parameters menu.

The SOD-R and SOD-L receive a reverse gear input and a vehicle speed signal message from the IPC through the Medium Speed Controller Area Network (MS-CAN). The CTA system, SOD-R and SOD-L send a message through the MS-CAN to the Parking Aid Module (PAM) to signal an audible tone to alert the driver.

The SOD-L and SOD-R are identical modules except that the SOD-R uses an address ground pin for configuration. The address ground is necessary so that the CTA system can decipher between the right and the left module.

The CTA system may operate poorly in extreme weather conditions or when a build up of debris over the SOD-L and SOD-R is present.

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. CTA system is not configured on with the scan tool
  3. IPC
  4. PAM
  5. SOD-L
  6. SOD-R
  7. Vehicle speed signal

On each ignition cycle, the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) run a self diagnostic check during which the exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LEDs illuminate for 3 seconds then turn off indicating the system is operational. The CTA system is enabled when the ignition switch is in the RUN position and the REVERSE (R) gear is selected. The system can be turned on and off through the message center, which is part of the Instrument Panel Cluster (IPC).

The SOD-R and SOD-L receive a PRNDL gear input and a vehicle speed signal message from the IPC through the Medium Speed Controller Area Network (MS-CAN). The CTA system, SOD-R and SOD-L send a message through the MS-CAN to the Parking Aid Module (PAM) to signal an audible tone to alert the driver.

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. SOD-L
  3. SOD-R
  4. Parking Aid Module (PAM)

On each ignition cycle, the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) run a self-diagnostic check during which the exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LEDs illuminate for 3 seconds then turn off indicating the system is operational. If a DTC fault is present, a system fault message is displayed in the Instrument Panel Cluster (IPC) message center.

  1. DTC B11D6:11 (Driver Display Alert LED: Circuit Short To Ground) - sets when the SOD-R or SOD-L detect a short to ground on the exterior mirror BLIS™ / CTA LED supply circuit.
  2. DTC B11D6:15 (Driver Display Alert LED: Circuit Short To Battery or Open) - sets when the SOD-R or SOD-L detect a short to battery voltage or an open on the exterior mirror BLIS™ / CTA LED supply circuit.

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. SOD-L
  3. SOD-R
  4. Exterior mirror BLIS™ / CTA LED

The Side Obstacle Detection Control Module - Left (SOD-L) and Side Obstacle Detection Control Module - Right (SOD-R) are identical modules except that the SOD-R uses an address ground pin for configuration. The address ground is necessary so that the Blind Spot Information System (BLIS™) or the Cross Traffic Alert (CTA) system can decipher between the SOD-R and the SOD-L during configuration. The SOD-R communicates over the Medium Speed Controller Area Network (MS-CAN).

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. SOD-R

A blocked sensor message indicates that there is an obstruction on the rear bumper cover fascia that does not allow the radar from the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) to penetrate. Wet mud, thick mud, heavy rain, heavy road splash from rain, snow or ice are possible obstructions.

If the system is in a blocked state, the radar misses targets, but still counts them. After approximately 4 counted/missed targets, the system sends a "BLOCK SENSOR" and "BLIND SPOT NOT AVAILABLE" or "CTA NOT AVAILABLE" message to the Instrument Panel Cluster (IPC).

This pinpoint test is intended to diagnose the following

  1. SOD-L
  2. SOD-R

The Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) communicate over the Medium Speed Controller Area Network (MS-CAN) with the Instrument Panel Cluster (IPC). The Blind Spot Information System (BLIS™) and the Cross Traffic Alert (CTA) system can be turned on and off through the message center which is part of the IPC . The CTA system cannot be disabled in the message center when the transmission selector gear is in REVERSE (R).

Note. The BLIS™ and/or CTA system are turned off for one key cycle only when using the message center switches. Permanently disabling the BLIS™ and/or CTA system is carried out in the Integrated Diagnostic System (IDS) programmable parameters menu.

This pinpoint test is intended to diagnose the following

  1. IPC
  2. SOD-R
  3. SOD-L

On each ignition cycle, the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) run a self diagnostic check during which the exterior mirror BLIS™ / CTA LEDs illuminate for 3 seconds then turn off indicating the system is operational. If a DTC fault is present, a system fault message is observed in the Instrument Panel Cluster (IPC) message center.

  1. DTC U3000:44 (Control Module: Data Failure) - sets when the SOD-R or SOD-L detect an internal memory failure.
  2. DTC U3000:49 (Control Module: Internal Electronic Failure) - sets when the SOD-R or SOD-L detect an internal electronic failure.

This pinpoint test is intended to diagnose the following

  1. SOD-R
  2. SOD-L

For the Blind Spot Information System (BLIS™), the exterior mirror BLIS™ /Cross Traffic Alert (CTA) LED is at 95 percent illumination to be seen clearly during the day and is dimmed down to 10 percent at night. For the CTA system, the exterior mirror BLIS™/ CTA LED is always at 85 percent illumination.

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. Side Obstacle Detection Control Module - Right (SOD-R)
  3. Side Obstacle Detection Control Module - Left (SOD-L)
  4. Exterior mirror BLIS™ / CTA LED

See also:
• JACKING & LIFTING

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