Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 709
•
When Monitored:
While the CAN bus ignition status is in IGN_RUN and the module is configured for a Seat Track Position
Sensor, the module checks the sensor input current ranges.
•
Set Condition:
If the module detects that the sensor input is greater than or equal to 20.5 mA. This DTC may set when the
current is between 17 mA and 20.5 mA.
Possible Causes
DRIVER SEAT HARNESS IMPROPERLY ROUTED
DRIVER SEAT HARNESS WIRES CHAFED, PIERCED, PINCHED, PARTIALLY BROKEN
DRIVER SEAT HARNESS CONNECTOR TERMINALS BROKEN, BENT, PUSHED OUT, SPREAD, CORRODED,
CONTAMINATED
(R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT SHORTED TO VOLTAGE
(R263) SEAT POSITION SENSOR VOLTAGE-DRIVER CIRCUIT SHORTED TO VOLTAGE
(R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT SHORTED TO (R263) SEAT POSITION SENSOR
VOLTAGE-DRVER CIRCUIT
DRIVER SEAT TRACK POSITION SENSOR
OCCUPANT CLASSIFICATION MODULE (OCM)
OCCUPANT RESTRAINT CONTROLLER (ORC)
Diagnostic Test
1.
IDENTIFYING VEHICLE EQUIPMENT
NOTE: Ensure the battery is fully charged.
Turn the ignition on.
With the scan tool, read ORC and if equipped OCM active DTCs.
Select the module reporting the Seat Track Position Sensor DTC(s)
ORC
>> Go To 9
OCM
Go To 3 Diagnostic Test
2.
CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT
CLASSIFICATION MODULE (OCM)
With the scan tool, read Occupant Classification Module (OCM) DTCs.
Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?
Yes
>> Diagnose and repair the DTCs. Refer to the Table of Contents in this Section for a complete list of
symptoms.
No
>> Go To 3
3.
VERIFY THAT DTC B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH IS ACTIVE
With the scan tool, read OCM DTCs.
Does the scan tool display active: B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH?
Yes
>> Go To 4
No
>> Go To 16
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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4.
INSPECT DRIVER SEAT HARNESS WIRES AND CONNECTORS
With the scan tool, erase OCM DTCs.
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes before proceeding.
Using the wiring diagram/schematic as a guide, inspect the Driver Seat Harness wiring and connectors. Look for
chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated
terminals.
Are any of these conditions present?
Yes
>>
NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or
testing for is present in the Seat Harness.
Replace the Driver Seat Harness in accordance with the Service Information.
Perform OCS VERIFICATION TEST - VER 1.
No
>> Go To 5
5.
VERIFY THAT DRIVER SEAT HARNESS IS ROUTED CORRECTLY
Verify that the Driver Seat Harness is routed correctly.
Is the Driver Seat Harness routed correctly?
Yes
>> Go To 6
No
>> Reroute the Driver Seat Harness as necessary.
Perform OCS VERIFICATION TEST - VER 1.
6.
CHECK FOR DTC B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH WITH DRIVER SEAT
TRACK POSITION SENSOR DISCONNECTED
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes before proceeding.
Disconnect the Driver Seat Track Position Sensor connector.
WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.
Wait two minutes, and then with the scan tool, read OCM DTCs.
Does the scan tool display: B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH?
Yes
>> Go To 7
No
>>
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes before proceeding.Replace the Driver Seat Track Position Sensor in accordance with the service infor-
mation.
Perform the OCS VERIFICATION TEST-VER 1.
LX
RESTRAINTS - ELECTRICAL DIAGNOSTICS
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7.
CHECK (R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT AND (R263) SEAT POSITION SENSOR
VOLTAGE-DRIVER CIRCUIT FOR A SHORT TO VOLTAGE
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the OCM C1 connector.
WARNING: To avoid personal injury or death, turn the ignition on,
then reconnect the battery.
Measure the voltage of the (R261) Seat Position Sensor Data-Driver cir-
cuit.
Measure the voltage of the (R263) Seat Position Sensor Voltage-Driver
circuit.
Is the voltage above 0.2 volts on either circuit?
Yes
>>
NOTE: Do not attempt to repair the Seat Harness. Replace the Seat
Harness if the condition inspecting or testing for is present in the
Seat Harness.
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.Re-
place the Driver Seat Harness in accordance with the Service Infor-
mation.
Perform the OCS VERIFICATION TEST-VER 1.
No
>> Go To 8
8.
CHECK (R261) SEAT POSITION SENSOR DATA-DRIVER CIRCUIT FOR A SHORT TO (R263) SEAT
POSITION SENSOR VOLTAGE-DRIVER CIRCUIT
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Measure the resistance between the (R261) Seat Position Sensor Data-
Driver circuit and the (R263) Seat Position Sensor Voltage-Driver circuit.
Is the resistance below 10k ohms?
Yes
>>
NOTE: Do not attempt to repair the Seat Harness. Replace the Seat
Harness if the condition inspecting or testing for is present in the
Seat Harness.
Replace the Driver Seat Harness in accordance with the ser-
vice information.
Perform the OCS VERIFICATION TEST-VER 1.
No
>> Replace the OCM in accordance with the Service information.
Perform the OCS VERIFICATION TEST-VER 1.
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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Diagnostic Test
9.
CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT
RESTRAINT CONTROLLER (ORC)
With the scan tool, read Occupant Restraint Controller (ORC) DTCs.
Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?
Yes
>> Diagnose and repair the DTCs. Refer to the Table of Contents in this Section for a complete list of
symptoms.
No
>> Go To 10
10.
VERIFY THAT DTC B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH IS ACTIVE
Does the scan tool display active: B1B8E-DRIVER SEAT TRACK POSITION SENSOR CIRCUIT HIGH?
Yes
>> Go To 11
No
>> Go To 16
11.
INSPECT DRIVER SEAT HARNESS WIRES AND CONNECTORS
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes before proceeding.
Using the wiring diagram/schematic as a guide, inspect the Driver Seat Harness wiring and connectors. Look for
chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated
terminals.
Are any of these conditions present?
Yes
>>
NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or
testing for is present in the Seat Harness.
Replace the Driver Seat Harness in accordance with the Service Information.
Perform ORC VERIFICATION TEST - VER 1.
No
>> Go To 12
12.
VERIFY THAT DRIVER SEAT HARNESS IS ROUTED CORRECTLY
Verify that the Driver Seat Harness is routed correctly.
Is the Driver Seat Harness routed correctly?
Yes
>> Go To 13
No
>> Reroute the Driver Seat Harness as necessary.
Perform ORC VERIFICATION TEST - VER 1.
LX
RESTRAINTS - ELECTRICAL DIAGNOSTICS
8O - 245
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