Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 196
7.
CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT OPEN
Connect a jumper wire between ground and the (B6) Right Front WSS
Signal circuit in the Anti-Lock Brakes Module harness connector.
Using a 12-volt test light connected to 12-volts, probe the (B6) Right
Front WSS Signal circuit.
Does the test light illuminate brightly?
Yes
>> Go To 8
No
>> Repair the (B6) Right Front WSS Signal circuit for an open.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
8.
CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT FOR AN SHORT TO VOLTAGE
Turn the ignition on.
Remove all jumper wires.
Measure the voltage between the (B6) Right Front WSS Signal circuit
and ground.
Is the voltage above one volt?
Yes
>> Repair the (B6) Right Front WSS Signal circuit for a short
to voltage.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
No
>> Go To 9
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9.
CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT AND (B7) RIGHT FRONT WSS 12 VOLT SUPPLY
CIRCUIT SHORTED TOGETHER
Turn the ignition off.
Measure the resistance between the (B6) Right Front WSS Signal cir-
cuit and the (B7) Right Front WSS Supply circuit.
Is the resistance above 5.0 ohms?
Yes
>>
Go To 10
No
>> Repair the (B6) Right Front WSS Signal circuit and the (B7)
Right Front WSS Supply circuit for a short together.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
10.
RIGHT FRONT WHEEL SPEED SENSOR
Replace the Right Front Wheel Speed Sensor in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
CAUTION: Ensure brake capability is available before road testing.
Road test the vehicle over 40 km/h (25 m.p.h.).
NOTE: Vehicle must be driven above 40 km/h (25 m.p.h.) for set conditions to be meet.
With the scan tool, read ABS DTCs.
NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at 12 km/h (7.5 mph) before it will extinguish
the ABS indicators.
Did DTC C1015–RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT reset?
Yes
>> Replace the Anti-Lock Brakes Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Test Complete.
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
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C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
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•
When Monitored:
With the ignition on.
•
Set Condition:
When the Right Front WSS Signal is intermittently missing a vehicle speed above 25mph (40 kph) or erratic
wheel speed signal during acceleration or sensed wheel speed is different from other wheels.
Possible Causes
RIGHT FRONT WSS LOOSE — B6, B7 CIRCUITS/CONNECTOR/TERMINAL DAMAGE
RIGHT FRONT TONE WHEEL DAMAGE
RIGHT FRONT WHEEL BEARING DAMAGE
IMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRES
RIGHT FRONT WSS
ANTI-LOCK BRAKE MODULE
Diagnostic Test
1.
CHECK FOR DTC C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE
NOTE: This DTC must be active for the results of this test to be valid.
NOTE: If DTC C1015–Right Front Wheel Speed Sensor Circuit is present it must be repaired before continu-
ing.
Turn the ignition on.
With the scan tool, record and erase DTCs.
Road test the vehicle over 40 km/h (25 m.p.h.).
NOTE: Vehicle must be driven above 40 km/h (25 m.p.h.) for set conditions to be meet.
With the scan tool, read DTCs.
NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at 12 km/h (7.5 mph) before it will extinguish
the ABS indicators.
Does the scan tool display: C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFOR-
MANCE?
Yes
>> Go To 3
No
>> Go To 2
2.
CHECK WHEEL SPEED SENSOR SIGNALS
Turn the ignition on.
With the scan tool, monitor and graph ALL the WSS speeds and compare graph while an assistant drives the vehi-
cle.
NOTE: If graph shows periodic dropouts pay close attention to the tone wheel.
Slowly accelerate as straight as possible from a stop to 40 km/h (25 m.p.h.).
Is the Right Front WSS speed showing 0 km/h (0 m.p.h.) or not matching other wheel speeds?
Yes
>> Go To 3
No
>> Refer to the INTERMITTENT CONDITION diagnostic procedure.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
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