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DTC B0083-B0088

DTC B0083-B0088

Diagnostic Instructions


Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Diagnostic Procedure Instructions provides an overview of each diagnostic category.


DTC Descriptors

DTC B0083 01

Front Impact Sensor 1 Short to Battery (Driver)

DTC B0083 02

Front Impact Sensor 1 Short to Ground (Driver)

DTC B0083 04

Front Impact Sensor 1 Open (Driver)

DTC B0083 39

Front Impact Sensor 1 Internal Electronic Failure (Driver)

DTC B0083 3A

Front Impact Sensor 1 Incorrect Component Installed (Driver)

DTC B0084 01

Front Impact Sensor 2 Short to Battery (Passenger)

DTC B0084 02

Front Impact Sensor 2 Short to Ground (Passenger)

DTC B0084 04

Front Impact Sensor 2 Open (Passenger)

DTC B0084 39

Front Impact Sensor 2 Internal Electronic Failure (Passenger)

DTC B0084 3A

Front Impact Sensor 2 Incorrect Component Installed (Passenger)

DTC B0085 01

Left Front Side Impact Sensor Short to Battery

DTC B0085 02

Left Front Side Impact Sensor Short to Ground

DTC B0085 04

Left Front Side Impact Sensor Open

DTC B0085 39

Left Front Side Impact Sensor Internal Malfunction

DTC B0085 3A

Left Front Side Impact Sensor Incorrect Component Installed

DTC B0086 01

Right Front Side Impact Sensor Short to Battery

DTC B0086 02

Right Front Side Impact Sensor Short to Ground

DTC B0086 04

Right Front Side Impact Sensor Open

DTC B0086 39

Right Front Side Impact Sensor Internal Malfunction

DTC B0086 3A

Right Front Side Impact Sensor Incorrect Component Installed

DTC B0087 01

Left Rear Side Impact Sensor Short to Battery

DTC B0087 02

Left Rear Side Impact Sensor Short to Ground

DTC B0087 04

Left Rear Side Impact Sensor Open

DTC B0087 39

Left Rear Side Impact Sensor Internal Malfunction

DTC B0087 3A

Left Rear Side Impact Sensor Incorrect Component Installed

DTC B0088 01

Right Rear Side Impact Sensor Short to Battery

DTC B0088 02

Right Rear Side Impact Sensor Short to Ground

DTC B0088 04

Right Rear Side Impact Sensor Open

DTC B0088 39

Right Rear Side Impact Sensor Internal Malfunction

DTC B0088 3A

Right Rear Side Impact Sensor Incorrect Component Installed

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Front Impact Sensor 1 High Signal

B0083 02

B0083 04

B0083 01

B0083 3A

Front Impact Sensor 1 Low Reference

B0083 02

B0083 04

B0083 01

B0083 3A

Front Impact Sensor 2 High Signal

B0084 02

B0084 04

B0084 01

B0084 3A

Front Impact Sensor 2 Low Reference

B0084 02

B0084 04

B0084 01

B0084 3A

Left Front Side Impact Sensor High Signal

B0085 02

B0085 04

B0085 01

B0085 39

Left Front Side Impact Low Reference

B0085 02

B0085 04

B0085 01

B0085 39

Right Front Side Impact Sensor High Signal

B0086 02

B0086 04

B0086 01

B0086 39

Right Front Side Impact Sensor Low Reference

B0086 02

B0086 04

B0086 01

B0086 39

Left Rear Side Impact Sensor High Signal

B0087 02

B0087 04

B0087 01

B0087 39

Left Rear Side Impact Sensor Low Reference

B0087 02

B0087 04

B0087 01

B0087 39

Right Rear Side Impact Sensor High Signal

B0088 02

B0088 04

B0088 01

B0088 39

Right Rear Side Impact Sensor Low Reference

B0088 02

B0088 04

B0088 01

B0088 39



Circuit/System Description

The impact sensors are equipped on vehicles to supplement the Supplemental Inflatable Restraint (SIR) System performance. The impact sensors are electronic and are not part of the deployment loops, but instead provide inputs to the sensing and diagnostic module (SDM). The impact sensors can assist in determining the severity of some frontal and side collisions. The SDM uses the input from the impact sensors to assist in determining the severity of a collision further supporting air bag deployment. If the SDM determines a deployment is warranted, the SDM will cause current to flow through the deployment loops deploying the frontal air bags.

Conditions for Running the DTC

Ignition voltage is between 9-16 V.

Conditions for Setting the DTC

Any of the following conditions exist for 10 seconds:

B0083 01, B0084 01, B0085 01, B0086 01, B0087 01, B0088 01

The sensor has been shorted to voltage.


B0083 02, B0084 02, B0085 02, B0086 02, B0087 02, B0088 02

The sensor has been shorted to ground.

The sensor current is greater than 23 mA for greater than 5 milliseconds.



B0083 04, B0084 04, B0085 04, B0086 04, B0087 04, B0088 04

The sensor circuit is open.

The SDM has not received a message from the sensor for greater than 375 milliseconds.



B0083 39, B0084 39, B0085 39, B0086 39, B0087 39, B0088 39

The SDM has received a Not OK message from the sensor.

The SDM has not received a message.



B0083 3A, B0084 3A, B0085 3A, B0086 3A, B0087 3A, B0088 3A

The SDM has received identification message from the sensor, which does not match the identification stored in the SDM memory.

The SDM has reset the sensor twice without detecting the correct identification message.


Action Taken When the DTC Sets

The SDM requests the instrument cluster to illuminate the AIR BAG indicator.

Conditions for Clearing the DTC


The condition responsible for setting the DTC no longer exists.

A history DTC will clear once 100 malfunction-free ignition cycles have occurred.

An ignition cycle is required for the DTC to go from current to history.


Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation S

Electrical Information Reference


Circuit Testing

Testing for Intermittent Conditions and Poor Connections

Connector Repairs

Wiring Repairs


Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Note

Refer to SIR Service Precautions .

Inspect all terminals for damage or corrosion when disconnecting connectors. Damage or corrosion in the following requires repair or replacement of the affected component/connector.

Air bag module

Steering wheel inflatable restraint module coil

SDM module

Air bag wiring harness connector

SDM wiring harness connector


Note

The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate properly. Replace any CPA that is damaged or missing.

If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.



1. Verify that DTC B0083-B0088 symptom byte 39 or 71 is not set as current.

2. If symptom byte 39 or 71 is set as current, replace the appropriate B59 or B63 impact sensor.

3. Verify that the SDM calibrations match the VIN data, software part number, and calibration part number.

4. If not the correct data or part number, program the SDM.

5. Verify the correct impact sensors have the correct part numbers, matching the label part numbers with the parts book.

6. If the part numbers do not match, replace the incorrect B59 or B63 impact sensor

7. Verify that DTC B0083-B0088 symptom byte 01, 02 or 04 is not set as current.

8. If symptom byte 01, 02 or 04 is set as current, refer to Circuit/System Testing.


Circuit/System Testing


1. Ignition OFF, disconnect the scan tool and disconnect the harness connector at the appropriate B59 or B63 impact sensor.

2. Wait for 120 seconds and then test for less than 10 Ω between the low reference circuit terminal 2 and ground.

3. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal replace the K36 SDM.

4. Test for greater than 50k Ω between the signal circuit terminal 1 and ground.

5. If less than the specified value, test the signal circuit for a short to ground. If the circuit tests normal replace the K36 SDM.

6. Disconnect the harness connector at the SDM.

7. Test for less than 1 Ω between the impact sensor signal circuit terminal 1 and the SDM terminal listed below.

Left front side impact sensor terminal 19 X2

Left front end impact sensor terminal 23 X2

Right front side impact sensor terminal 22 X2

Right front end impact sensor terminal 26 X2

Left rear side impact sensor terminal 27 X2

Right rear side impact sensor terminal 30 X2

8. If greater than the specified range, test the circuit for an open/high resistance.

9. If all circuits test normal, replace the B59 or B63 sensor. The DTC should not be set as current.

10. If the DTC resets as current, replace the K36 SDM.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.


Driver or Passenger Seat Side Inflatable Restraint Module Replacement (6-Way Hybrid, 6-Way Hybrid Sport)

Inflatable Restraint Rear Side Door Side Impact Sensor Replacement

Front End Inflatable Restraint Discriminating Sensor Replacement

Control Module References for SDM replacement, setup, and programming