F 150 Heritage 4WD Pickup V8-5.4L CNG VIN M (2004)
Brake Switch (Cruise Control): Customer Interest
Cruise Control - Intermittently Inoperative
TSB 05-6-10
04/04/05
SPEED CONTROL INOPERATIVE/INTERMITTENT
OPERATION - VEHICLES BUILT BEFORE 5/17/2004
FORD:
2004 F-150
This article supersedes TSB 04-20-01 to update the Service Procedure.
ISSUE
Some 2004 F-150 vehicles with a floor mounted gear selector lever, built on or before 5/17/2004, may exhibit intermittent or no operation from the
speed control system.
ACTION
Monitor the brake on/off (BOO) PID. Verify that BOO reads correctly and that it does not change state when moving the gear selector lever. Refer to the
following Service Procedure.
SERVICE PROCEDURE
CAUTION
BE SURE TO CHOCK THE VEHICLE'S WHEELS TO PREVENT THE VEHICLE FROM ROLLING.
1.
With the gear selector in PARK, brake NOT applied, engine OFF and the ignition key in the RUN position, monitor the BOO PID.
a.
If BOO indicates "ON", replace the brake shift interlock switch. If BOO indicates "OFF" proceed to Step b.
b.
Apply the brake, move the gear selector to the Drive position and release the brake. If BOO PID reads "ON" (or intermiffently "ON"),
replace the brake shift interlock switch. If BOO never indicates "ON" proceed to Step c.
c.
With the brake NOT applied, move the gear selector lever into different gear positions while monitoring BOO. If the BOO PID reads "ON"
(or intermittently "ON"), replace the brake shift interlock switch. If this procedure does not identify the cause follow normal diagnostics per
workshop manual.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION
DESCRIPTION
TIME
050610A
2004 F-150 Replace The
0.6 Hr.
Brake Shift Interlock
Switch (Includes Time To
Diagnose Using WDS Or
NGS) (Do Not Use With
04536A Or 04536B)
DEALER CODING
CONDITION
BASIC PART NO.
CODE
7E096
42