Diagnostic Test

1. Turn the ignition on.
2. With the scan tool, read ORC DTCs.
   NOTE:

   Make sure the battery is fully charged.

   Does the scan tool display active: B1B75-RIGHT SIDE SATELLITE ACCELERATION SENSOR 1 INTERNAL, U0175-LOST COMMUNICATION W/RIGHT SIDE SATELLITE ACCELERATION SENSOR 1, U0176-LOST COMMUNICATION W/RIGHT SIDE SATELLITE ACCELERATION SENSOR 2?

   Yes 

   NOTE:

   Check for active codes and repair for the fault starting with the Internal failure code or codes, check for active or stored status. Upon fixing the right side impact sensor 1 then check the right side impact sensor 2 internal fault if status changes to stored for all codes fault is fixed if status is still active proceed to the right side impact sensor 1 loss of communication code, check for status of the right side impact sensor 1 code status being active. If all codes go to stored status, fault in daisy chain is fixed if code status is still active continue. Check the right side impact sensor 2 for status of the right side impact sensor 2 code going to stored. If status of all codes goes to stored status, fault in daisy chain is fixed if code status is still active continue and fix the fault.

   • Check for all other internal and lost communication codes indicated in the right side impact sensor daisy chain wiring before diagnosing DTC U0176-LOST COMMUNICATION W/RIGHT SIDE SATELLITE ACCELERATION SENSOR 2. Go To The DTC Displayed. Refer to DIAGNOSIS AND TESTING . If internal fault 1 and lost comm fault 1 have been checked follow DTC U0176-LOST COMMUNICATION W/RIGHT SIDE SATELLITE ACCELERATION SENSOR 2. Go To  2

   No 

   • Perform the AIRBAG SYSTEM INTERMITTENT TEST. Refer to STANDARD PROCEDURE .

Fig 1: Checking Right Side Impact Sensor 2 Signal And Ground Circuits For A Short To Battery

Courtesy of CHRYSLER GROUP, LLC

1. Disconnect the Right Side Impact Sensor 2 harness connector.
2. Disconnect the ORC harness connectors.
3. Connect the ORC (special tool #8443-25, 56 Way ACM Adapter) Adaptor to the ORC harness connector.
   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.

4. Measure the voltage of the (R18) Right Side Impact Sensor 2 Signal circuit and the (R20) Sensor 2 Ground circuit at the Right Side Impact Sensor 2 harness connector.

   Is there any voltage present?

   Yes 

   • Repair the (R18) and (R20) Right Side Impact Sensor 2 circuits for a short to battery.
   • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

   No 

   • Go To  3

Fig 2: Checking Right Side Impact Sensor 2 Signal Circuit For A Short To Ground

Courtesy of CHRYSLER GROUP, LLC

1. Measure the resistance between ground and the (R18) Right Side Impact Sensor 2 Signal circuit at the Right Side Impact Sensor 2 harness connector.

   Is the resistance below 100K Ohms?

   Yes 

   • Repair the (R18) Right Side Impact Sensor 2 Signal circuit for a short to ground.
   • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

   No 

   • Go To  4

Fig 3: Checking Right Side Impact Sensor Circuits For A Short Together

Courtesy of CHRYSLER GROUP, LLC

1. Measure the resistance between the (R18) Right Side Impact Sensor 2 Signal circuit and the (R20) Sensor 2 Ground circuit at the Right Side Impact Sensor 2 harness connector.

   Is the resistance below 100K Ohms?

   Yes 

   • Repair the (R18) and (R20) Right Side Impact Sensor 2 circuits shorted together.
   • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

   No 

   • Go To  5

Fig 4: Checking Right Side Impact Sensor 2 Ground Circuit For An Open Or High Resistance

Courtesy of CHRYSLER GROUP, LLC

1. Measure the resistance of the (R20) Right Side Impact Sensor 2 Ground circuit between the Right Side Impact Sensor 2 harness connector and the Right Side Impact Sensor 1 harness connector.

   Is the resistance below 1 Ohm?

   Yes 

   • Go To  6

   No 

   • Repair the (R20) Right Side Impact Sensor 2 Ground circuit for an open or high resistance.
   • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

Fig 5: Checking Right Side Impact Sensor 2 Circuit For An Open Or High Resistance

Courtesy of CHRYSLER GROUP, LLC

1. Measure the resistance of the (R18) Right Side Impact Sensor 2 Signal circuit between the Right Side Impact Sensor 2 harness connector and the SRS Load Tool Adaptor (special tool #8443-25, 56 Way ACM Adapter).

   Is the resistance below 1 Ohm?

   Yes 

   • Go To  7

   No 

   • Repair the (R18) Right Side Impact Sensor 2 Signal circuit for an open or high resistance.
   • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

1. Replace the Right Side Impact Sensor 2.
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.
   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.

4. Connect the scan tool to the Data Link Connector - use the most current software available.
5. Use the scan tool and erase the stored codes in all airbag system modules.
6. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
7. Wait one minute, and read active codes and if there are none present read the stored codes.

   Did the active Right Side Impact Sensor 2 DTC return? If so, replace the Right Side Impact Sensor 1 and retest. Did code return?

   Yes 

   • Go To  8

   No 

   • Repair is complete.
   • Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

If there are no possible causes remaining, view repair.

Repair 

• Replace the Occupant Restraint Controller in accordance with Service Instructions.
• Perform the AIRBAG SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE .