Test Procedure

WARNING: This page is about a different car, the 2003 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Pinpoint Test A: No Communication With The VAPS Module/Unable To Enter Self-Test

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Fig 1: Pinpoint Test B: DTCS B1317/B1318 - Battery Voltage High/Low

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Fig 1: Diagnosis Procedure - DTC C1445 (Vehicle Speed Signal Circuit Failure) (Steps C1 & C2)

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Fig 2: Diagnosis Procedure - DTC C1445 (Vehicle Speed Signal Circuit Failure) (Steps C3 & C4)

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Fig 1: Diagnosis Procedure - DTC 1897 (Steering VAPS Circuit Loop Failure) (Steps D1-D4)

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Fig 2: Diagnosis Procedure - DTC 1897 (Steering VAPS Circuit Loop Failure) (Steps D5 & D6)

Courtesy of FORD MOTOR CO.