D: C1233/C1234/C1237 - Sensor Output Failure

PINPOINT TEST D: DTCS C1233, C1234, AND C1237 WHEEL SPEED SENSOR OUTPUT FAILURE

Test D1-D2:

Test D2-D4:

Test D4-D6:

Test D6-D8:

Test D8-D9:

Test D9 Continued:

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

NOTE: Any time a wheel speed sensor is removed, thoroughly clean the mounting surfaces. On front wheel speed sensors, apply High Temperature 4x4 Front Axle and Wheel Bearing Grease E8TZ-1 9590A or equivalent meeting Ford specification ESA-M1C198-A.