Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 378
3.
(Z911) GROUND CIRCUIT OPEN
Turn the ignition off.
Using a 12-volt test light connected to 12-volts, check the (Z911)
ground circuit.
Does the test light illuminate brightly?
Yes
>> Go To 4
No
>> Repair the (Z911) ground circuit for an open.
Perform the OCS VERIFICATION TEST-VER 1.
4.
(F201) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED
Turn the ignition on.
Using a 12-volt test light connected to ground, check the (F201) Fused
Ignition Switch Output circuit.
Does the test light illuminate brightly?
Yes
>> Go To 5
No
>> Repair the (F201) Fused Ignition Switch Output circuit for
an open or short.
Perform the OCS VERIFICATION TEST-VER 1.
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5.
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
WARNING: If the Occupant Classification Module is dropped at
any time, it must be replaced. Failure to take the proper precau-
tions could result in accidental airbag deployment and personal
injury or death.
NOTE: One open circuit will not cause this condition.
Measure the voltage between the (D54) CAN B Bus (-) circuit and
ground.
Measure the voltage between the (D55) CAN B Bus (+) circuit and
ground.
Is there any voltage present on either circuit?
Yes
>> Go To 6
No
>> Repair the (D55) and (D54) CAN B Bus circuits for an
open. Inspect the connector for damage.
Perform the OCS VERIFICATION TEST-VER 1.
6.
CHECK (R263) SEAT POSITION SENSOR VOLTAGE CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Measure the resistance between ground and the (R263) Seat Position Sensor Voltage 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 OCM and Driver Seat Position Sensor Harness in accordance with the service information.
Perform the OCS VERIFICATION TEST-VER 1.
No
>> Go To 7
7.
CHECK (R701) SEAT WEIGHT SENSOR 5 VOLTS CIRCUIT FOR A SHORT TO GROUND
Disconnect the Occupant Classification Module C2 harness connector.
Measure the resistance between ground and the (R701) Seat Weight Sensor 5 volt 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 OCM and Driver Seat Position Sensor Harness in accordance with the service information.
Perform the OCS VERIFICATION TEST-VER 1.
No
>> Replace the Occupant Classification Module in accordance with the service information.
Perform the OCS VERIFICATION TEST-VER 1.
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*NO RESPONSE FROM ORC (OCCUPANT RESTRAINT CONTROLLER MODULE)
For a complete wiring diagram Refer to Section 8W.
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Possible Causes
(Z913) GROUND CIRCUIT OPEN
(F214) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR SHORTED
(F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR SHORTED
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
OCCUPANT RESTRAINT CONTROLLER MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU View.
NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active
on the Bus network. A green check indicates that the module is active on the Bus network.
Does the scan tool display a red X next to the module?
Yes
>> Go To 2
No
>> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
2.
(Z913) GROUND CIRCUIT OPEN
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the Occupant Restraint Controller Module harness connec-
tors.
Connect the appropriate Load Tool ACM Adaptor to the ORC connector.
Using a 12-volt test light connected to 12-volts, check the (Z913)
ground circuit.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the (Z913) ground circuit for an open.
Perform AIRBAG VERIFICATION TEST - VER 1.
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