Dodge Dakota (R1). Manual — part 107
TEST
ACTION
APPLICABILITY
12
Turn the ignition off.
Disconnect the CAB harness connector C1.
Disconnect the Rear Wheel Speed Sensor harness connector.
Measure the resistance through the Rear Wheel Speed Sensor (+) and (-) circuits at
the CAB harness connector.
Is the resistance below 200 ohms?
All
Yes
→
Repair the Rear Wheel Speed Sensor Circuits Shorted together.
Perform ABS VERIFICATION TEST - VER 1.
No
→
13
If there are no possible causes remaining, view repair.
All
Repair
Replace the Rear Wheel Speed Sensor in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
14
Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Refer to any Hotline letters or Technical Service Bulletins that may apply.
Were any problems found?
All
Yes
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Test Complete.
47
BRAKES (CAB)
REAR SENSOR OPEN —
Continued
Symptom:
RIGHT FRONT SENSOR OPEN
When Monitored and Set Condition:
RIGHT FRONT SENSOR OPEN
When Monitored:
Ignition on. The CAB monitors the wheel speed circuit every 7
milliseconds (ms).
Set Condition:
If the CAB detects an open or shorted wheel speed sensor circuit, the
Diagnostic Trouble Code (DTC) will set.
POSSIBLE CAUSES
RIGHT FRONT WHEEL SPEED SENSOR OR CONNECTOR DAMAGE
INTERMITTENT DTC
RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT SHORTED TO GROUND
RIGHT FRONT WHEEL SPEED SENSOR (-) CIRCUIT SHORTED TO GROUND
RIGHT FRONT WHEEL SPEED SENSOR - SHORT TO GROUND
CAB - INTERNAL SHORT OR OPEN
RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT OPEN
RIGHT FRONT WHEEL SPEED SENSOR (-) CIRCUIT OPEN
RIGHT FRONT WHEEL SPEED SENSOR (+) CIRCUIT SHORTED TO VOLTAGE
RIGHT FRONT WHEEL SPEED SENSOR (-) CIRCUIT SHORTED TO VOLTAGE
RIGHT FRONT WHEEL SPEED SENSOR CIRCUITS SHORT TOGETHER
RIGHT FRONT WHEEL SPEED SENSOR RESISTANCE OUT OF SPECIFICATION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read DTC’s.
With the DRBIII
t, erase DTC’s.
Turn the ignition off.
Turn the ignition on.
With the DRBIII
t, read DTC’s.
Does the DRBIII
t display RF Wheel Speed Sensor Circuit Failure DTC?
All
Yes
→
No
→
2
Turn the ignition off.
Inspect the Right Front Wheel Speed Sensor and Connector.
Is the Sensor or Connector Damaged?
All
Yes
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→
48
BRAKES (CAB)
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the CAB harness connector C2.
Note: Check connector - Clean/repair as necessary.
Measure the resistance across the Right Front Wheel Speed Sensor (+) and (-) circuits
at the CAB connector.
Is the resistance between 1000 - 1250 ohms for 2WD and 945 - 1155 ohms for 4WD?
All
Yes
→
No
→
4
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor Connector.
Disconnect the CAB harness connector C2.
Measure the resistance between the Right Front Wheel Speed Sensor (+) Circuit and
ground.
Is the resistance below 20,000 ohms?
All
Yes
→
Repair the Right Front Wheel Speed Sensor (+) circuit Short to
Ground.
Perform ABS VERIFICATION TEST - VER 1.
No
→
5
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor harness connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the CAB harness connector C2.
Note: Check connector - Clean/repair as necessary.
Measure the resistance between the Right Front Wheel Speed Sensor (-) circuit and
ground.
Is the resistance below 20,000 ohms?
All
Yes
→
Repair the Right Front Wheel Speed Sensor (-) Circuit Short to
Ground.
Perform ABS VERIFICATION TEST - VER 1.
No
→
6
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor harness connector.
Note: Check connector - Clean/repair as necessary.
On the sensor, measure the resistance between ground and both of the Right Front
Wheel Speed Sensor terminals.
Is the resistance below 20,000 ohms?
All
Yes
→
Replace the Right Front Wheel Speed Sensor.
Perform ABS VERIFICATION TEST - VER 1.
No
→
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Controller Antilock Brake in accordance with the
Service Information. Refer to the symptom *Replacing the Con-
troller Antilock Brake for additional information.
Perform ABS VERIFICATION TEST - VER 1.
49
BRAKES (CAB)
RIGHT FRONT SENSOR OPEN —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor Connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the CAB harness connector C2.
Note: Check connector - Clean/repair as necessary.
Measure the resistance of the wheel speed sensor (+) circuit.
Is the resistance below 5 ohms?
All
Yes
→
No
→
Repair the Right Front Wheel Speed Sensor (+) Circuit Open.
Perform ABS VERIFICATION TEST - VER 1.
9
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor Connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the CAB harness connector C2.
Note: Check connector - Clean/repair as necessary.
Measure the resistance of the Right Front Wheel Speed Sensor (-) circuit.
Is the resistance below 5 ohms?
All
Yes
→
No
→
Repair the Right Front Wheel Speed Sensor (-) Circuit Open.
Perform ABS VERIFICATION TEST - VER 1.
10
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor harness connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the CAB harness connector C2.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Right Front Wheel Speed Sensor (+) Circuit.
Is the voltage above 1 volt?
All
Yes
→
Repair Right Front Wheel Speed Sensor (+) Circuit Shorted to
Voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
→
11
Turn the ignition off.
Disconnect the Right Front Wheel Speed Sensor harness connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the CAB harness connector C2.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Right Front Wheel Speed Sensor (-) Circuit.
Is the voltage above 1 volt?
All
Yes
→
Repair Right Front Wheel Speed Sensor (-) Circuit Short to
Voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
→
50
BRAKES (CAB)
RIGHT FRONT SENSOR OPEN —
Continued
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