DTC B0083-B0088
Diagnostic Instructions
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 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 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 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 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 Serial Data Received |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Left Front Impact Sensor High Signal
|
B0083 02
|
B0083 04, B0083 05
|
B0083 01
|
B0083 3A
|
Left Front Impact Sensor Low Reference
|
B0083 02
|
B0083 04, B0083 05
|
B0083 01
|
B0083 3A
|
Right Front Impact Sensor High Signal
|
B0084 02
|
B0084 04, B0084 05
|
B0084 01
|
B0084 3A
|
Right Front Impact Sensor Low Signal
|
B0084 02
|
B0084 04, B0084 05
|
B0084 01
|
B0084 3A
|
Left Front Side Impact Sensor High Signal
|
B0085 02
|
B0085 04, B0085 05
|
B0085 01
|
B0085 39
|
Left Front Side Impact Sensor Low Reference
|
B0085 02
|
B0085 04, B0085 05
|
B0085 01
|
B0085 39
|
Right Front Side Impact Sensor High Signal
|
B0086 02
|
B0086 04, B0086 05
|
B0086 01
|
B0086 39
|
Right Front Side Impact Sensor Low Reference
|
B0086 02
|
B0086 04, B0086 05
|
B0086 01
|
B0086 39
|
Left Rear Side Impact Sensor High Signal
|
B0087 02
|
B0087 04, B0087 05
|
B0087 01
|
B0087 39
|
Left Rear Side Impact Sensor Low Reference
|
B0087 02
|
B0087 04, B0087 05
|
B0087 01
|
B0087 39
|
Right Rear Side Impact Sensor High Signal
|
B0088 02
|
B0088 04, B0088 05
|
B0088 01
|
B0088 39
|
Right Rear Side Impact Sensor Low Reference
|
B0088 02
|
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 inflatable restraint
sensing and diagnostic module. The impact sensors can assist in
determining the severity of some frontal and side collisions. The
inflatable restraint sensing and diagnostic module uses the input
from the impact sensors to assist in determining the severity of a
collision further supporting air bag deployment. If the inflatable
restraint sensing and diagnostic module determines a deployment is
warranted, the inflatable restraint sensing and diagnostic module
will cause current to flow through the deployment loops deploying
the 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
The impact sensor has been shorted to voltage.
B0083 02, B0084 02, B0085 02, B0086 02
| • |
The impact sensor has been
shorted to ground. |
| • |
The impact sensor current is
greater than 23 mA for greater than 5 milliseconds. |
B0083 04, B0083 05, B0084 04, B0084 05, B0085 04, B0085 05,
B0086 04, B0086 05, B0087 04, B0087 05, B0088 04, B0088 05
| • |
The sensor circuit is
open. |
| • |
The inflatable restraint
sensing and diagnostic module has not received a message from the
sensor for greater than 375 milliseconds. |
B0083 39, B0084 39, B0085 39, B0086 39
| • |
The inflatable restraint
sensing and diagnostic module has received a Not OK message from
the impact sensor. |
| • |
The inflatable restraint
sensing and diagnostic module has not received a message.
|
B0083 3A, B0084 3A, B0085 3A, B0086 3A
| • |
The inflatable restraint
sensing and diagnostic module has received identification message
from the impact sensor, which does not match the identification
stored in the inflatable restraint sensing and diagnostic module
memory. |
| • |
The inflatable restraint
sensing and diagnostic module has reset the impact sensor twice
without detecting the correct identification message. |
B0083 71, B0084 71, B0085 71, B0086 71
The inflatable restraint sensing and diagnostic module has received
invalid serial data from the impact sensor.
Action Taken When the DTC Sets
The inflatable restraint sensing and diagnostic module requests
the instrument panel cluster to illuminate the AIR BAG
indicator.
Conditions for Clearing the DTC
| • |
The condition 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
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Note:
| • |
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. |
| |
• |
Inflatable restraint sensing
and diagnostic module |
| |
• |
Impact sensor wiring harness
connector |
| |
• |
Inflatable restraint sensing
and diagnostic module wiring harness connector |
| • |
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 3A, 39, or 71 is not set as
current. |
⇒ If DTC
B0083–B0088 symptom byte 3A, 39 or 71 is set as
current
Replace the appropriate B59 or B63
impact sensor. ⇓ If
DTC B0083–B0088 symptom byte 3A, 39 or 71 is not set as
current
| 2. |
Verify that DTC
B0083–B0088 symptom byte 01, 02, 04, or 05 is not set as
current. |
⇒ If DTC
B0083–B0088 symptom byte 01, 02, 04, or 05 is set as
current
Refer to Circuit/System Testing.
⇓ If DTC
B0083–B0088 symptom byte 01, 02, 04, 05 is not set as
current
Circuit/System Testing
| 1. |
Ignition OFF, disconnect the
harness connector at the appropriate B59 or B63 impact sensor, wait
120 seconds. |
| 2. |
Test for less than 10 Ω
between the low reference circuit terminal 2 and ground.
|
⇒ If 10 Ω or
greater
| |
2.1 |
Ignition OFF, disconnect the
harness connector at the K36 inflatable restraint sensing and
diagnostic module. |
| |
2.2 |
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 inflatable restraint
sensing and diagnostic module. |
⇓ If less than 10
Ω
| 3. |
Test for greater than 50k
Ω between the signal circuit terminal 1 and ground.
|
⇒ If 50k Ω or
less
| |
3.1 |
Disconnect the harness
connector at the K36 inflatable restraint sensing and diagnostic
module. |
| |
3.2 |
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 inflatable restraint
sensing and diagnostic module. |
⇓ If greater than
50k Ω
| 4. |
Ignition ON, test for less
than 1 volt between the signal circuit terminal 1 and
ground. |
⇒ If greater than 1
volt
| |
4.1 |
Ignition OFF, disconnect the
harness connector at the K36 inflatable restraint sensing and
diagnostic module. |
| |
4.2 |
Ignition ON, test for less
than 1 volt between the signal circuit and ground. |
| ⇒ |
If greater than 1 volt, repair the short to voltage on the
circuit. |
| ⇒ |
If less than 1 volt, replace the K36 inflatable restraint
sensing and diagnostic module. |
⇓ If less than 1
volt
| 5. |
Ignition OFF, disconnect the
harness connector at the inflatable restraint sensing and
diagnostic module. |
| 6. |
Test for less than 2 Ω
between the signal circuit end to end from the impact sensor
terminal 1 and the inflatable restraint sensing and diagnostic
module terminal listed below: |
| |
• |
Left front side impact sensor
terminal 19 X2 |
| |
• |
Left front impact sensor
terminal 23 X2 |
| |
• |
Right front side impact sensor
terminal 22 X2 |
| |
• |
Right front impact sensor
terminal 26 X2 |
⇒ If 2 Ω or
greater
Repair the open/high resistance in
the circuit. ⇓ If
less than 2 Ω
| 7. |
Ignition OFF, reconnect all
harness connectors, press in the CPA (if equipped) until an audible
and/or tactile click is heard. |
| 8. |
Ignition ON, clear DTCs.
Operate the vehicle within the Conditions for Running the
DTC. |
| 9. |
Verify the DTC does not
set. |
⇒ If the DTC
sets
Replace the B59 or B63 impact sensor.
⇓ If the DTC does
not set
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
