PRE-RELEASE
DTC B0083-B0088
| DTC B0083-B0088 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptors |
DTC B0083 01
Left Front Impact Sensor Short to Battery
DTC B0083 02
Left Front Impact Sensor Short to Ground
DTC B0083 04
Left Front Impact Sensor Open
DTC B0083 05
Left Front Impact Sensor High/Voltage Open
DTC B0083 0C
Left Front Impact Sensor Low Current
DTC B0083 39
Left Front Impact Sensor Internal Electronic Failure
DTC B0083 3A
Left Front Impact Sensor Incorrect Component Installed
DTC B0083 71
Left Front Impact Sensor Invalid Serial Data Received
DTC B0084 01
Right Front Impact Sensor Short to Battery
DTC B0084 02
Right Front Impact Sensor Short to Ground
DTC B0084 04
Right Front Impact Sensor Open
DTC B0084 05
Right Front Impact Sensor High/Voltage Open
DTC B0084 0C
Right Front Impact Sensor Low Current
DTC B0084 39
Right Front Impact Sensor Internal Electronic Failure
DTC B0084 3A
Right Front Impact Sensor Incorrect Component Installed
DTC B0084 71
Right Front Impact Sensor Invalid Serial Data Received
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 05
Left Front Side Impact Sensor High/Voltage Open
DTC B0085 0C
Left Front Side Impact Sensor Low Current
DTC B0085 39
Left Front Side Impact Sensor Internal Malfunction
DTC B0085 3A
Left Front Side Impact Sensor Incorrect Component Installed
DTC B0085 71
Left Front Side Impact Sensor Invalid Serial Data Received
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 05
Right Front Side Impact Sensor High/Voltage Open
DTC B0086 0C
Right Front Side Impact Sensor Low Current
DTC B0086 39
Right Front Side Impact Sensor Internal Malfunction
DTC B0086 3A
Right Front Side Impact Sensor Incorrect Component Installed
DTC B0086 71
Right Front Side Impact Sensor Invalid Data
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 05
Left Rear Side Impact Sensor High/Voltage Open
DTC B0087 0C
Left Rear Side Impact Sensor Low Current
DTC B0087 39
Left Rear Side Impact Sensor Internal Malfunction
DTC B0087 3A
Left Rear Side Impact Sensor Incorrect Component Installed
DTC B0087 71
Left Rear Side Impact Sensor Invalid Serial Data Received
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 05
Right Rear Side Impact Sensor High/Voltage Open
DTC B0088 0C
Right Rear Side Impact Sensor Low Current
DTC B0088 39
Right Rear Side Impact Sensor Internal Malfunction
DTC B0088 3A
Right Rear Side Impact Sensor Incorrect Component Installed
DTC B0088 71
Right Rear Side Impact Sensor Invalid Data
| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
| Left Front Impact Sensor High Signal | B0083 02, B0083 0C | B0083 04, B0083 05 | B0083 01 | B0083 3A |
| Left Front Impact Sensor Low Reference | B0083 02, B0083 0C | B0083 04, B0083 05 | B0083 01 | B0083 3A |
| Right Front Impact Sensor High Signal | B0084 02, B0084 0C | B0084 04, B0084 05 | B0084 01 | B0084 3A |
| Right Front Impact Sensor Low Reference | B0084 02, B0084 0C | B0084 04, B0084 05 | B0084 01 | B0084 3A |
| Left Front Side Impact Sensor High Signal | B0085 02, B0085 0C | B0085 04, B0085 05 | B0085 01 | B0085 39 |
| Left Front Side Impact Low Reference | B0085 02, B0085 0C | B0085 04, B0085 05 | B0085 01 | B0085 39 |
| Right Front Side Impact Sensor High Signal | B0086 02, B0086 0C | B0086 04, B0086 05 | B0086 01 | B0086 39 |
| Right Front Side Impact Sensor Low Reference | B0086 02, B0086 0C | B0086 04, B0086 05 | B0086 01 | B0086 39 |
| Left Rear Side Impact Sensor High Signal | B0087 02, B0087 0C | B0087 04, B0087 05 | B0087 01 | B0087 39 |
| Left Rear Side Impact Sensor Low Reference | B0087 02, B0087 0C | B0087 04, B0087 05 | B0087 01 | B0087 39 |
| Right Rear Side Impact Sensor High Signal | B0088 02, B0088 0C | B0088 04, B0088 05 | B0088 01 | B0088 39 |
| Right Rear Side Impact Sensor Low Reference | B0088 02, B0088 0C | B0088 04, B0088 05 | 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 determine if air bag deployment is necessary. 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
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The sensor has been shorted to ground.
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The sensor current is greater than 23 mA for greater than 5 milliseconds.
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B0083 04, B0084 04, B0085 04, B0086 04, B0087 04, B0088 04
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The sensor circuit is open.
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The SDM has not received a message from the sensor for greater than 375 milliseconds.
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B0083 05, B0084 05, B0085 05, B0086 05, B0087 05, B0088 05
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The sensor circuit is open or high resistance.
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The SDM has not received a message from the sensor for greater than 375 milliseconds.
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B0083 0C, B0084 0C, B0085 0C, B0086 0C, B0087 0C, B0088 0C
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The sensor has been shorted to ground.
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The sensor current is greater than 23 mA for greater than 5 milliseconds.
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B0083 39, B0084 39, B0085 39, B0086 39, B0087 39, B0088 39
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The SDM has received a Not OK message from the sensor.
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The SDM has not received a message.
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B0083 3A, B0084 3A, B0085 3A, B0086 3A, B0087 3A, B0088 3A
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The SDM has received identification message from the sensor, which does not match the identification stored in the SDM memory.
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The SDM has reset the sensor twice without detecting the correct identification message.
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B0083 71, B0084 71, B0085 71, B0086 71, B0087 71, B0088 71
The SDM has received invalid serial data from the sensor.| Action Taken When the DTC Sets |
The SDM requests the instrument panel cluster to illuminate the AIR BAG indicator.
| Conditions for Clearing the DTC |
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The condition responsible for setting the DTC no longer exists.
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A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
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An ignition cycle is required for the DTC to go from current to history.
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| Reference Information |
Schematic Reference
SIR Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
SIR System Description and Operation
Electrical Information Reference
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Circuit Testing
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Testing for Intermittent Conditions and Poor Connections
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Connector Repairs
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Wiring Repairs
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Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
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Refer to SIR Service Precautions . |
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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. |
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Impact Sensor
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SDM
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Impact sensor wiring harness connector
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SDM wiring harness connector
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The connector and connector position assurance (CPA) may seat independent of each other. The connector and connector position assurance (CPA) may seat independently 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. |
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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.
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| 2. |
Verify that the SDM calibrations match the VIN data, software part number, and calibration part number.
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| 3. |
Verify the correct impact sensors have the correct part numbers, matching the label part numbers with the parts book.
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| 4. |
Verify that DTC B0083-B0088 symptom byte 01, 02, 04, 05, or 0C is not set as current.
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| 5. |
All OK.
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| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the appropriate B59 or B63 impact sensor, wait 120 seconds.
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| 2. |
Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
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| 2.1. |
Ignition OFF, disconnect the harness connector at the K36 SDM.
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| 2.2. |
Test for less than 2 Ω in the low reference circuit end to end.
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| 3. |
Test for greater than 50k Ω between the signal circuit terminal 1 and ground.
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| 3.1. |
Disconnect the harness connector at the K36 SDM.
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| 3.2. |
Test for infinite resistance between the signal circuit and ground.
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Disconnect the harness connector at the SDM.
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| 5. |
Test for less than 2 Ω between the signal circuit end to end from the impact sensor terminal 1 and the SDM terminal listed below:
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Left front side impact sensor terminal 19 X2
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Left front impact sensor terminal 23 X2
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Right front side impact sensor terminal 22 X2
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Right front impact sensor terminal 26 X2
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Left rear side impact sensor terminal 27 X2
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Right rear side impact sensor terminal 30 X2
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Replace the appropriate B59 or B63 impact sensor.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Inflatable Restraint Side Impact Sensor Replacement - Front
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Inflatable Restraint Side Impact Sensor Replacement - Rear
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Front End Inflatable Restraint Discriminating Sensor Replacement
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Control Module References
for SDM replacement, programming and setup
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