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Home >> Dodge and Ram >> 2015 >> Durango SXT, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Occupant Restraint Controller (Orc) - DTCS B2208-00 To U1601-00) >> DTC Troubleshooting >> U11A0-00-Lost Communication W/Center-Pedestrian Protection Satellite Acceleration Sensor >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    The use of a approved special tool or Digital Multimeter such as a Fluke Meter that will not apply more than 20 milliamperes to a circuit are the only measurement tools to be used.

    NOTE:

    Probing of the circuit cavities at the ORC Module C1-A, C1-B, or C2-B body harness connectors is only to be done with a approved Miller Special Tools test lead from the Test Leads, Dedicated kit# 10159, test lead 10159-6. Or a comparable test lead to prevent vehicle wiring harness connector damage during diagnostic procedures. (special tool #10159, Test Leads, Dedicated)

    NOTE:

    Make sure the battery is fully charged.

  1. DETERMINE ACTIVE OR STORED DTC 
    1. Turn the ignition on.
    2. With the scan tool, read ORC DTCs.

      Is the DTC active or stored?

      ORC - ACTIVE DTC 

      • Go To  2

      ORC - STORED DTC 

  2. CHECK FOR ADDITIONAL ACTIVE SATELLITE SENSOR DTCS 
    NOTE:

    The scan tool, (special tool #10159, Test Leads, Dedicated), and a DVOM are required to perform the following tests.

    1. With the scan tool, read all active ORC DTCs.

      Is DTC U11A0-00-LOST COMMUNICATION W/CENTER PEDESTRIAN PROTECTION SATELLITE ACCELERATION SENSOR also active?

      Yes 

      • Go To  8

      No 

      • Go To  3
  3. CHECK (R174) CENTER PEDESTRIAN IMPACT SENSOR SIGNAL CIRCUIT FOR AN OPEN 
    WARNING:

    Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the Center Pedestrian Impact Sensor harness connector.
    2. Disconnect the ORC harness connectors.
      NOTE:

      Check the connectors - Clean and repair as necessary.

    3. Connect the appropriate test lead to the DVOM.
    4. Measure the resistance of the (R174) Center Pedestrian Impact Sensor Signal circuit between the Center Impact Sensor harness connector and ground.

      Is the resistance below 1.0 Ohm?

      Yes 

      • Go To  4

      No 

      • Repair or replace the (R174) Center Pedestrian Impact Sensor Signal circuit for an open in accordance with the Service Information. Then, Go To  4
  4. CHECK (R175) CENTER PEDESTRIAN IMPACT SENSOR GROUND CIRCUIT FOR AN OPEN 
    NOTE:

    Check the connectors - Clean and repair as necessary.

    1. Measure the resistance of the (R175) Left Front Impact Sensor Ground circuit between the Left Front Impact Sensor harness connector and ground.

      Is the resistance below 1.0 Ohm?

      Yes 

      • Go To  5

      No 

      • Repair or replace the (R175) Center Pedestrian Impact Sensor ground circuit for an open in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  5. CHECK (R175) CENTER PEDESTRIAN IMPACT SENSOR GROUND CIRCUIT FOR A SHORT TO THE (R174) CENTER PEDESTRIAN IMPACT SENSOR SIGNAL CIRCUIT 
    NOTE:

    Check the connectors - Clean and repair as necessary.

    1. Measure the resistance between the (R174) Center Pedestrian Impact Sensor Signal circuit and the (R175) Center Pedestrian Impact Sensor ground circuit at the Left Front Impact Sensor harness connector.

      Is the resistance below 5K Ohms?

      Yes 

      • Repair or replace the (R174) Center Pedestrian Impact Sensor Signal circuit for a short to the (R175) Center Pedestrian Impact Sensor ground circuit in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK (R174) CENTER PEDESTRIAN IMPACT SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    1. Measure the resistance of the (R174) Center Pedestrian Impact Sensor Signal circuit between ground and the Center Pedestrian Impact Sensor harness connector.

      Is the resistance below 6K Ohms?

      Yes 

      • Repair or replace the (R174) Center Pedestrian Impact Sensor Signal circuit for a short to ground in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Go To  7
  7. CHECK (R174) CENTER PEDESTRIAN IMPACT SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 
    1. If equipped with the standard key ignition, use this ignition on warning.
      WARNING:

      Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      If equipped with the keyless ignition, use this ignition on warning.

      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    2. Measure the voltage of the (R174) Center Pedestrian Impact Sensor Signal circuit between the Left Front Impact Sensor harness connector and ground.

      Is there any voltage present?

      Yes 

      WARNING:

      Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      • Repair or replace the (R174) Center Pedestrian Impact Sensor Signal circuit for a short to voltage in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST . If DTC U11A0-00-LOST COMMUNICATION W/CENTER PEDESTRIAN PROTECTION SATELLITE ACCELERATION SENSOR is still active, Go To  9. Otherwise, test complete.
  8. CHECK (R172) RIGHT PEDESTRIAN IMPACT SIGNAL CIRCUIT AND (R174) CENTER PEDESTRIAN IMPACT SENSOR SIGNAL CIRCUIT AND (R170) LEFT PEDESTRIAN IMPACT SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 
    WARNING:

    Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Disconnect the Center Pedestrian Impact Sensor Signal circuit harness connector.
    2. Disconnect the Right Pedestrian Impact Sensor Signal circuit harness connector.
    3. Disconnect the Left Pedestrian Impact Sensor Signal circuit harness connector.
    4. Disconnect the ORC harness connectors.
      NOTE:

      Check the connectors - Clean and repair as necessary.

    5. Connect the appropriate test lead to the DVOM.
    6. If equipped with the standard key ignition, use this ignition on warning.
      WARNING:

      Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    7. If equipped with the keyless ignition, use this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    8. Measure the voltage of the (R174) Center Pedestrian Impact Sensor Signal circuit between the cavity C2A - 13 and ground.
    9. Measure the voltage of the (R170) Left Pedestrian Impact Sensor Signal circuit between the cavity C1B - 69 and ground.
    10. Measure the voltage of the (R172) Right Pedestrian Impact Sensor Signal circuit between the cavity C1B - 68 and ground.

      Is there any voltage present on either circuit?

      Yes 

      WARNING:

      Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      • Repair or replace the impact sensor circuit with voltage present for a short to voltage in accordance with the Service Information.
      • Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .

      No 

      • Go To  9
  9. CHECK OPERATION OF CENTER PEDESTRIAN PROTECTION SATELLITE ACCELERATION SENSOR 
    WARNING:

    Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Replace the Center Pedestrian Impact Sensor. Refer to SENSOR, IMPACT, REMOVAL .
    2. Reconnect the vehicle body harness to the impact sensor.
    3. Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.
    4. If equipped with the standard key ignition, use this ignition on warning.
      WARNING:

      Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    5. If equipped with the keyless ignition, use this ignition on warning.
      WARNING:

      Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    6. Connect the scan tool to the Data Link Connector - use the most current software available.
    7. With the scan tool, erase all codes in the ORC.
    8. Perform ORC module reset. Access the Diagnostic Procedures menu from the ORC ECU Overview screen on the scan tool to perform this operation.
    9. Wait one minute, and read active codes.

      Did the active DTC U11AO-00-LOST COMMUNICATION W/CENTER PEDESTRIAN PROTECTION SATELLITE ACCELERATION SENSOR return?

      Yes 

      WARNING:

      If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.

      WARNING:

      Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

      No 

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