Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 685

B1B71-UP-FRONT RIGHT SATELLITE ACCELERATION SENSOR INTERNAL

For a complete wiring diagram Refer to Section 8W.

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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•

When Monitored:
The Occupant Restraint Controller (ORC) continuously communicates with the Front Right Impact Sensor over
the sensor signal circuit. The sensor communication and on board diagnostics are powered by the ORC signal.

•

Set Condition:
This code will set, if the ORC and the Front Right Impact Sensor do not establish and maintain valid data
communications.

Possible Causes

(R80) SIGNAL CIRCUIT SHORTED TO BATTERY

(R80) SIGNAL CIRCUIT SHORTED TO GROUND

(R80, R82) FRONT RIGHT IMPACT SENSOR CIRCUITS SHORTED TOGETHER

(R82) FRONT RIGHT IMPACT SENSOR GROUND CIRCUIT OPEN

(R80) FRONT RIGHT IMPACT SENSOR SIGNAL CIRCUIT OPEN

ORC, FRONT RIGHT IMPACT SENSOR

Diagnostic Test

1.

VERIFY THAT DTC B1B71-UP-FRONT RIGHT SATELLITE ACCELERATION SENSOR INTERNAL IS
ACTIVE

NOTE: Ensure the battery is fully charged.

NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must
be disconnected.
Turn the ignition on.

With the scan tool, read ORC DTCs.

Does the scan tool display active: B1B71-UP-FRONT RIGHT SATELLITE ACCELERATION SENSOR
INTERNAL?

Yes

>> Go To 2

No

>> Go To 9

2.

CHECK THE (R80, R82) FRONT RIGHT IMPACT SENSOR SIGNAL AND GROUND CIRCUITS FOR A
SHORT TO BATTERY

WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the Front Right Impact Sensor connector.

Disconnect the ORC connector.

WARNING: To avoid personal injury or death, turn the ignition on,
then reconnect the battery.
Measure the voltage of the (R80) Front Right Impact Sensor Signal cir-
cuit and (R82) Sensor Ground circuit at the Front Right Impact Sensor
connector and ground.

Is there any voltage present?

Yes

>> Repair the (R80, R82) Front Right Impact Sensor circuits

for a short to battery.

Perform the ORC VERIFICATION TEST - VER 1.

No

>> Go To 3

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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3.

CHECK THE (R80) FRONT RIGHT IMPACT SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

WARNING: To avoid personal injury or death, turn ignition on, then
reconnect the battery.
Measure the resistance of the (R80) Front Right Impact Sensor Signal
circuit between the Front Right Impact Sensor connector and ground.

Is the resistance below 100K ohms?

Yes

>> Repair the (R80) Front Right Impact Sensor Signal circuit

for a short to ground.

Perform the ORC VERIFICATION TEST - VER 1.

No

>> Go To 4

4.

CHECK THE (R80, R82) FRONT RIGHT IMPACT SENSOR CIRCUITS FOR A SHORT TOGETHER

Measure the resistance between the (R80) Front Right Impact Sensor
Signal and (R82) Sensor Ground circuits at the Front Right Impact Sen-
sor connector.

Is the resistance below 100K ohms?

Yes

>> Repair the (R80, R82) Front Right Impact Sensor circuits

shorted together.

Perform the ORC VERIFICATION TEST - VER 1.

No

>> Go To 5

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5.

CHECK THE (R82) FRONT RIGHT IMPACT SENSOR GROUND CIRCUIT FOR AN OPEN OR HIGH
RESISTANCE

Connect the 8443 Load Tool ORC Adaptor to the Occupant Control
Module connector.

Measure the resistance of the (R82) Front Right Impact Sensor Ground
circuit between the Front Right Impact Sensor connector and the 8443
Load Tool ORC Adaptor.

Is the resistance below 1 ohm?

Yes

>> Go To 6

No

>> Repair the (R82) Front Right Impact Sensor 2 Ground cir-

cuit for an open or high resistance.

Perform the ORC VERIFICATION TEST - VER 1.

6.

CHECK THE (R80) FRONT RIGHT IMPACT SENSOR CIRCUIT FOR AN OPEN OR HIGH RESISTANCE

Measure the resistance of the (R80) Front Right Impact Sensor Signal
circuit between the Front Right Impact Sensor connector and the 8443
Load Tool ORC Adaptor.

Is the resistance below 1 ohm?

Yes

>> Go To 7

No

>> Repair the (R80) Front Right Impact Sensor Signal circuit

for an open or high resistance.

Perform the ORC VERIFICATION TEST - VER 1.

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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