Dodge Sprinter. Manual — part 444
Symptom:
INCORRECT TONE WHEEL
When Monitored and Set Condition:
INCORRECT TONE WHEEL
When Monitored:
Ignition On - Continuously
Set Condition:
When continuous ABS control is active for one minute on one or more
wheels OR interference on one or more wheels OR deviation of two wheel speeds at either
side of vehicle by 6 km/h (4 mph) or at the front axle by 10 km/h (7 mph). If at least one
wheel is 5 km/h (3 mph) or less, a wheel speed deviation of adjoining wheels of 12 km/h (8
mph) is allowed.
POSSIBLE CAUSES
INTERMITTENT INCORRECT TONE WHEEL DTC
INCORRECT TIRES ON VEHICLE
TIRE CIRCUMFERENCES NOT MATCHING
WHEEL SPEED SENSOR CIRCUIT SHORT TO VOLTAGE
INCORRECT TONE WHEEL
WHEEL SPEED SENSOR CIRCUIT SHORT TO GROUND
DAMAGED WHEEL BEARING
WHEEL SPEED SENSOR CIRCUIT OPEN
DAMAGED BRAKE LININGS/COMPONENTS
WHEEL SPEED SENSOR CIRCUITS SHORTED TOGETHER
WHEEL SPEED SENSOR
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read DTCs.
With the DRBIII
t, erase DTCs.
Turn the ignition off.
Turn the ignition on.
Road test the vehicle.
During the road test, drive the vehicle above 100 km/h (62 mph) for at least 3 minutes
and perform several stops and Antilock stops.
Stop the vehicle.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display INCORRECT TONE WHEEL?
All
Yes
→ Go To 2
No
→ Go To 13
32
BRAKES (CAB)
TEST
ACTION
APPLICABILITY
2
Turn the ignition off.
Inspect the tire sizes on the vehicle.
Is a smaller than production tire or spare tire being used?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Measure all the tire circumferences.
Do all the tire circumferences match?
All
Yes
→ Go To 4
No
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Inspect the tone wheel(s) for damage, missing teeth, cracks, or looseness.
NOTE: Refer to the service manual information, if necessary, for procedures
or specifications.
Are one or more tone wheel(s) loose or damaged?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Inspect the wheel bearings for excessive runout or clearance.
NOTE: Refer to the service information, if necessary, for procedures or
specifications.
Is the wheel bearing clearance within specifications?
All
Yes
→ Go To 6
No
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Visually inspect the brakes for locking up due to lining contamination or overheating.
Inspect all brake components for any condition that would cause a variation in wheel
speed.
Is any component damaged?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 7
7
Turn the ignition on.
With the DRBIII
t in Sensors, monitor ALL the Wheel Speed Sensor signals while an
assistant drives the vehicle.
Slowly accelerate from a stop to 65 km/h (40 mph).
NOTE: Wheel Speed should not vary by more than 10% from wheel to wheel
when driving in a straight line.
Do any of the Wheel Speed Sensor signals vary by greater than 10% while driving in
a straight line?
All
Yes
→ Go To 8
No
→ Go To 13
33
BRAKES (CAB)
INCORRECT TONE WHEEL —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the CAB harness connector.
Turn the ignition on.
Measure the voltage of both affected Wheel Speed Sensor circuits in the CAB harness
connector.
Is there any voltage present?
All
Yes
→ Repair the affected Wheel Speed Sensor circuit for a short to
voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 9
9
Turn the ignition off.
Disconnect the CAB harness connector.
Measure the resistance between ground and both affected Wheel Speed Sensor
circuits in the CAB harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the affected Wheel Speed Sensor circuit for a short to
ground.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 10
10
Turn the ignition off.
Disconnect the CAB harness connector.
Measure the resistance between the affected Wheel Speed Sensor circuits in the CAB
harness connector.
Is the resistance over 1,800 ohms?
All
Yes
→ Repair the affected Wheel Speed Sensor circuit for an open.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 11
11
Turn the ignition off.
Disconnect the CAB harness connector.
Measure the resistance between the affected Wheel Speed Sensor circuits in the CAB
harness connector.
Is the resistance under 1,100 ohms?
All
Yes
→ Repair the affected Wheel Speed Sensor circuits for a short to
each other.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 12
12
Turn the ignition off.
Disconnect the CAB harness connector.
Measure the resistance between the affected Wheel Speed Sensor circuits in the CAB
harness connector.
Is the resistance between 1,100 and 1,800 ohms?
All
Yes
→ Go To 13
No
→ Replace the Wheel Speed Sensor in accordance with the Service
Information.
Perform ABS VERIFICATION TEST - VER 1.
34
BRAKES (CAB)
INCORRECT TONE WHEEL —
Continued
TEST
ACTION
APPLICABILITY
13
The condition necessary to set this DTC is not present at this time.
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.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Test Complete.
35
BRAKES (CAB)
INCORRECT TONE WHEEL —
Continued
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