C1237 LINCOLN Speed Wheel Rear Input Signal Missing

Possible causes
– Faulty Rear ABS Sensor
– Rear ABS Sensor harness is open or shorted
– Rear ABS Sensor circuit poor electrical connection
– Faulty Wheel Speed Sensor
– Wheel bearing
Tech description
There is factory service bulletin for the following Lincoln models:

2002 Lincoln Aviator
2003 Lincoln Aviator
2004 Lincoln Aviator
Lincoln Aviator Factory Service Bulletin OBDII Code C1237

Symptoms
– ABS light ON
LINCOLN Related C1237 code
2003 LINCOLN AVIATOR Service Brakes, Air:antilock:abs Warning Light
2004 LINCOLN AVIATOR Service Brakes, Air:antilock:abs Warning Light
2003 LINCOLN AVIATOR Service Brakes, Hydraulic:antilock:control Unit/module
2004 LINCOLN AVIATOR Service Brakes, Hydraulic:antilock:control Unit/module