Parking Assist System - System Inoperative/DTC C1983 Set

TSB 05-26-12

12/31/05

PARKING AID SYSTEM INOPERATIVE - DTC C1983

FORD:
2003 Expedition

LINCOLN:
2003-2005 LS, Town Car, Navigator

This article supersedes TSB 05-23-08 to update the Service Procedure.

ISSUE
Some 2003 Expedition and 2003-2005 Town Car, Lincoln LS and Navigator vehicles may exhibit an inoperative parking aid system and diagnostic trouble code (DTC) C1983 stored in memory of the Parking Aid Module (PAM).

ACTION
Verify the vehicle has DTC C1983 in memory. If DTC C1983 is the only DTC present, it may be necessary to replace the PAM. Refer to the following Service Procedure.

SERVICE PROCEDURE

1. Use the NGS or WDS to run PAM self-test.

2. If DTC C1983 is the only code present, replace the PAM referring to the physical replacement procedure in the on-line Workshop Manual. DO NOT use the PAM programming procedure in the Workshop Manual for this concern. Refer to the following for the correct Workshop Manual section:

^ Expedition/Navigator/Town Car: Section 413-13

^ Lincoln LS: Section 413-00

3. Reprogram the PAM using the following procedure:

a. Start vehicle and place transmission gear selector into Reverse (R), wait a minimum of 10 seconds.

b. Shift the gear selector into Drive (D), drive the vehicle ABOVE 25 MPH (40 Km/h) for a minimum of 15 seconds.

c. Stop the vehicle and cycle the key off then back on.

d. Repeat Steps a, b and c, three (3) more times for a total of four (4) times.

NOTE
THE WDS NOW HAS THE CAPABILITY TO CHECK THE PIDS FOR THE ULTRASONIC SENSORS. USE THESE PIDS TO VERIFY OPERATION OF THE TWO (2) ULTRASONIC SENSORS.





Parts Block

WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage

OPERATION DESCRIPTION TIME

052612A 2003-2005 Town Car: 1.0 Hr.
Replace PAM, Reprogram
PAM Also Includes Time
For Road Test

052612A 2003-2005 Navigator 4X4, 1.5 Hrs.
4X2: Replace PAM,
Reprogram PAM Also
Includes Time For Road
Test

052612A 2003 Expedition 4X4, 4X2: 1.5 Hrs.
Replace PAM, Reprogram
PAM Also Includes Time
For Road Test

052612A 2003-2005 Lincoln LS: 1.2 Hrs.
Replace PAM, Reprogram
PAM Also Includes Time
For Road Test

DEALER CODING
CONDITION
BASIC PART NO. CODE
15K866 42





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