Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 199
5.
CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN
Connect a jumper wire between ground and the (B4) Left Rear WSS
Supply circuit in the Anti-Lock Brakes Module harness connector.
Using a 12-volt test light connected to 12-volts, probe the (B4) Left
Rear WSS Supply circuit.
Does the test light illuminate brightly?
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
>> Repair the (B4) Left Rear WSS Supply circuit for an open.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
6.
CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND
Using a 12-volt test light connected to 12-volts, probe the (B3) Left
Rear WSS Signal circuit.
Does the test light illuminate brightly?
Yes
>> Repair the (B3) Left Rear WSS Signal circuit for a short to
ground.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
No
>> Go To 7
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
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7.
CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT FOR AN OPEN
Connect a jumper wire between ground and the (B3) Left Rear WSS
Signal circuit in the Anti-Lock Brakes Module harness connector.
Using a 12-volt test light connected to 12-volts, probe the (B3) Left
Rear WSS Signal circuit.
Does the test light illuminate brightly?
Yes
>> Go To 8
No
>> Repair the (B3) Left Rear WSS Signal circuit for an open.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
8.
CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT SHORT TO VOLTAGE
Turn the ignition on.
Remove all jumper wires.
Measure the voltage between the (B3) Left Rear WSS Signal circuit
and ground.
Is the voltage above one volt?
Yes
>> Repair the (B3) Left Rear 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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BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 239
9.
CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT AND (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT
SHORTED TOGETHER
Turn the ignition off.
Measure the resistance between the (B3) Left Rear WSS Signal circuit
and the (B4) Left Rear WSS Supply circuit.
Is the resistance above 5.0 ohms?
Yes
>>
Go To 10
No
>> Repair the (B3) Left Rear WSS Signal circuit and the (B4)
Left Rear WSS Supply circuit for a short together.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 -
BRAKES - STANDARD PROCEDURE).
10.
LEFT REAR WHEEL SPEED SENSOR
Replace the Left Rear 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 C1020–LEFT REAR 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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C1027-LEFT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
LX
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 241
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