Orlando

DTC B0083-B0088

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 inflatable restraint 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.

Ignition voltage is between 9-16 V.

Any of the following conditions exist for 10 seconds:

B0083 01, B0085 01, B0086 01

The sensor has been shorted to voltage.

B0083 02, B0085 02, B0086 02

B0083 04, B0085 04, B0086 04

B0083 39, B0085 39, B0086 39

B0083 3A, B0085 3A, B0086 3A

B0083 71, B0085 71, B0086 71

The SDM has received invalid serial data from the sensor.

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

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Note: Refer to SIR Service Precautions .

Note: 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.

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

⇒	If DTC B0083-B0088 symptom byte 39 or 71 is set as current

⇒	Replace the appropriate B59 or B63 impact sensor.

⇓	If DTC B0083-B0088 symptom byte 39 or 71 is not set as current

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

⇒	If the SDM calibrations do not match the VIN data

⇒	Program the SDM.

⇓	If the SDM calibrations match the VIN data

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

⇒	If the SDM part numbers do not match

⇒	Replace the incorrect B59 or B63 impact sensor

⇓	If the SDM part numbers do match

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

⇒	If DTC B0083-B0088 symptom byte 01, 02 or 04 is set as current

⇒	Refer to Circuit/System Testing.

⇓	If DTC B0083-B0088 symptom byte 01, 02 or 04 is not set as current

5. All OK.

1. Ignition OFF.
2. Disconnect the harness connector at the appropriate B59 or B63 impact sensor, wait 120 seconds.
3. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.

⇒	If 10 Ω or greater

3.1.	Ignition OFF, disconnect the harness connector at the K36 SDM.

3.2.	Test for less than 2 Ω in the low reference circuit end to end.

⇒	If 2 Ω or greater, repair the open/high resistance in the circuit.

⇒	If less than 2 Ω, replace the K36 SDM.

⇓	If less than 10 Ω

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

⇒	If 50k Ω or less

4.1.	Disconnect the harness connector at the K36 SDM.

4.2.	Test for infinite resistance between the signal circuit and ground.

⇒	If less than infinite resistance, repair the short to ground on the circuit.

⇒	If infinite resistance, replace the K36 SDM.

⇓	If greater than 50k Ω

5. Disconnect the harness connector at the SDM.
6. 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:

•	Left front side impact sensor terminal 19 X2

•	Centre front impact sensor terminal 23 X2

•	Right front side impact sensor terminal 22 X2

⇒	If 2 Ω or greater

7. Repair the open/high resistance in the circuit.

⇓	If less than 2 Ω

8. Replace the B59 or B63 impact sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.