F 250 4WD Super Duty V10-6.8L VIN Y (2006)
or broken/cracked connector. Install a new pigtail if necessary (See Pigtail Installation Procedure).
2.
Ensure that the harness is properly retained and routed to eliminate intermittent speed signals.
3.
Add dielectric grease to the connector.
4.
If only DTC C1236 exists, and it occurs only under acceleration or towing, check for loose carrier bolts.
5.
If no wiring concerns are present check the tone ring through the wheel speed sensor bore for damage, and for proper gap between the tone ring
and ring gear.
6.
Use a feeler gage to confirm gap between tone ring and ring gear is no larger than 0.010". Check the gap at multiple locations around the tone ring.
a.
If gap is larger than 0.010", remove the axle cover and use suitable punch/driver to carefully "tap" tone ring back against ring gear. Recheck
with feeler gage.
b.
Examine each tooth of the tone wheel for damage. Even a small nick can cause a C1236 (Figure 1).
7.
If no tone wheel issues are found, replace the wheel speed sensor.
Pigtail Installation
1.
Disconnect the battery.
2.
Disconnect the damaged connector from the axle.
3.
Cut wiring near the rear wheel sensor takeout from 14405 harness.
4.
Splice in pigtail (pigtail includes heat shrink).
5.
Cover heat shrink with tubing.
6.
Route the two (2) retainers of the pigtail to park brake cable.
NOTE
USE A ZIP TIE TO SECURE THE HARNESS TO THE SENSOR SO THE PORTION OF THE HARNESS THAT IS COMING OFF OF
THE BRAKE CABLE IS SUPPORTED.
7.
Plug in connector to rear wheel sensor.
8.
Check for functionality.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
