Jeep Grand Cherokee WK. Manual — part 143
C1032-RIGHT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE (CONTINUED)
2.
CHECK THE TERMINALS/CONNECTORS/TONE WHEEL FOR DAMAGE
NOTE: Check all related wiring for bruised, chafed, pierced, or partially broken wires.
NOTE: Check all related connectors for broken, bent, pushed out, or corroded terminals.
NOTE: Check the tone wheel teeth for missing teeth, cracks, or looseness. Teeth should be perfectly
square, not bent, or nicked.
Turn the ignition off.
Inspect the Anti-Lock Brake Module harness connector, Right Rear WSS, Right Rear WSS harness connector, and
Right Rear WSS tone wheel (if applicable).
Were any problems found?
Yes
>> Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Go To 3
3.
(B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORTED TO THE (B2) RIGHT REAR WSS SUPPLY CIRCUIT
Turn the ignition off.
Disconnect the Anti-Lock Brake Module harness connector.
Disconnect the Right Rear WSS harness connector.
Measure the resistance between the (B1) Right Rear WSS Signal and
the (B2) Right Rear WSS Supply circuits at the Right Rear WSS har-
ness connector.
Is the resistance above 5.0 ohms?
Yes
>> Go To 4
No
>> Repair the (B1) Right Rear WSS Signal circuit for a short
to the (B2) Right Rear WSS Supply circuit.
Perform ABS VERIFICATION TEST - VER 1.
4.
CHECK THE VOLTAGE ON THE (B2) RIGHT REAR WSS SUPPLY CIRCUIT
Turn the ignition off.
Connect the Anti-Lock Brake Module harness connector.
Turn the ignition on.
Measure the voltage of the (B2) Right Rear WSS Supply circuit in the
Right Rear WSS harness connector.
Is the voltage above 10 volts?
Yes
>> Go To 8
No
>> Go To 5
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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
WK
C1032-RIGHT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE (CONTINUED)
5.
(B2) RIGHT REAR WSS SUPPLY CIRCUIT SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the Anti-Lock Brake Module harness connector.
Turn the ignition on.
Measure the voltage of the (B2) Right Rear WSS Supply circuit.
Is there any voltage present?
Yes
>> Repair the (B2) Right Rear WSS Supply circuit for a short
to voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Go To 6
6.
(B2) RIGHT REAR WSS SUPPLY CIRCUIT SHORT TO GROUND
Turn the ignition off.
Measure the resistance between ground and the (B2) Right Rear WSS
Supply circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (B2) Right Rear WSS Supply circuit for a short
to ground.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Go To 7
7.
(B2) RIGHT REAR WSS SUPPLY CIRCUIT OPEN
Measure the resistance of the (B2) Right Rear WSS Supply circuit.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Anti-Lock Brake Module in accordance with
the Service Information.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Repair the (B2) Right Rear WSS Supply circuit for an
open.
Perform ABS VERIFICATION TEST - VER 1.
WK
BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
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C1032-RIGHT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE (CONTINUED)
8.
CHECK THE (B2) RIGHT REAR WSS SUPPLY AND THE (B1) RIGHT REAR WSS SIGNAL VOLTAGE
Measure the voltage between the (B2) Right Rear WSS Supply and
(B1) Right Rear WSS Signal circuits at the Right Rear WSS harness
connector.
Is the voltage above 10 volts?
Yes
>> Go To 11
No
>> Go To 9
9.
(B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the Anti-Lock Brake Module harness connector.
Turn the ignition on.
Measure the voltage of the (B1) Right Rear WSS Signal circuit.
Is there any voltage present?
Yes
>> Repair the (B1) Right Rear WSS Signal circuit for a short
to voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Go To 10
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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
WK
C1032-RIGHT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE (CONTINUED)
10.
(B1) RIGHT REAR WSS SIGNAL CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the (B1) Right Rear WSS Signal circuit.
Is the resistance above 5.0 ohms?
Yes
>> Repair the (B1) Right Rear WSS Signal circuit for an
open.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Replace the Anti-Lock Brake Module in accordance with
the Service Information.
Perform ABS VERIFICATION TEST - VER 1.
11.
CHECK THE (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Measure the resistance between ground and the (B1) Right Rear WSS
Signal circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (B1) Right Rear WSS Signal circuit for a short
to ground.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Go To 12
WK
BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
5 - 201
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