Dodge Caliber. Manual — part 111
3.
CHECK (B9) LEFT FRONT WSS SUPPLY CIRCUIT VOLTAGE
Disconnect the Left Front WSS harness connector.
Turn the ignition on.
Measure the voltage between the (B9) Left Front WSS Supply circuit
and ground.
Is the voltage above 10 volts?
Yes
>> Go To 6
No
>> Go To 4
4.
CHECK (B9) LEFT FRONT WSS SUPPLY CIRCUIT SHORT TO GROUND
Disconnect the Anti-Lock Brake Module harness connector.
Using a 12-volt test light connected to 12-volts, probe the (B9) Left
Front WSS Supply circuit.
Does the test light illuminate brightly?
Yes
>> Repair the (B9) Left Front WSS Supply circuit for a short to
ground.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
No
>> Go To 5
5.
CHECK (B9) LEFT FRONT WSS SUPPLY CIRCUIT OPEN
Connect a jumper wire between ground and the (B9) Left Front WSS
Supply circuit in the Anti-Lock Brakes Module harness connector.
Using a 12-volt test light connected to 12-volts, probe the (B9) Left
Front WSS Supply circuit.
Does the test light illuminate brightly
Yes
>> Go To 6
No
>> Repair the (B9) Left Front WSS Supply circuit for an open.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
PM
BRAKES - ABS ELECTRICAL DIAGNOSTICS
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6.
CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORT TO VOLTAGE
Turn the ignition on.
Measure the voltage between the (B8) Left Front WSS Signal circuit
and ground.
Is the voltage above one volt?
Yes
>> Repair the (B8) Left Front WSS Signal circuit for a short to
voltage.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
No
>> Go To 7
7.
CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORT TO GROUND
Turn the ignition off.
If not done previously, disconnect the Anti-Lock Brake Module harness
connector.
Using a 12-volt test light connected to 12-volts, probe the (B8) Left
Front WSS Signal circuit.
Does the test light illuminate brightly?
Yes
>> Repair the (B8) Left Front WSS Signal circuit for a short to
ground.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
No
>> Go To 8
8.
CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT OPEN
Connect a jumper wire between ground and the (B8) Left Front WSS
Signal circuit in the Anti-Lock Brakes Module harness connector.
Using a 12-volt test light connected to 12-volts, probe the (B8) Left
Front WSS Signal circuit.
Does the test light illuminate brightly?
Yes
>> Go To 9
No
>> Repair the (B8) Left Front WSS Signal circuit for an open.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
PM
9.
CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT AND (B9) LEFT FRONT WSS SUPPLY CIRCUIT SHORT
TOGETHER
Remove all jumper wires.
Measure the resistance between the (B8) Left Front WSS Signal circuit
and the (B9) Left Front WSS Supply circuit.
Is the resistance above 5.0 ohms?
Yes
>> Go To 10
No
>> Repair the (B8) Left Front WSS Signal circuit and the (B9)
Left Front WSS Supply circuit for a short together.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES -
STANDARD PROCEDURE).
10.
LEFT FRONT WHEEL SPEED SENSOR
Replace the Left Front Wheel Speed Sensor in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
WARNING: To avoid personal injury or death, check 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 C100A–LEFT FRONT WHEEL SPEED SENSOR CIRCUIT reset?
Yes
>> Replace the Anti-Lock Brakes Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Test Complete.
PM
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 147
C1011-LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
When the Left Front WSS Signal is intermittently missing a vehicle speed above 40 kph (25 mph) or erratic
wheel speed signal during acceleration or sensed wheel speed is different from other wheels.
Possible Causes
LEFT FRONT WSS LOOSE — B8, B9 CIRCUITS/CONNECTOR/TERMINAL DAMAGE
LEFT FRONT TONE WHEEL DAMAGE
LEFT FRONT WHEEL BEARING DAMAGE
IMPROPER LEFT FRONT TIRE PRESSURE/MISMATCHED TIRES
LEFT FRONT WSS
ANTI-LOCK BRAKE MODULE
Diagnostic Test
1.
CHECK FOR DTC C1011-LEFT 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 C100A Left 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: C1011-LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFOR-
MANCE?
Yes
>> Go To 2
No
>> The condition that caused the symptom is currently not present. Inspect the related wiring for a possible
intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TEST-
ING)
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 Left 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. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
PM
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