Fulltext TSBs

Technical Service Bulletins

TSB
98-19-3
  • AIR CONDITIONING – INOPERATIVE – VEHICLES BUILT THROUGH 7/30/98
  • AIR CONDITIONING – TEMPERATURE CONTROL INOPERATIVE – VEHICLES BUILT THROUGH 7/30/98
  • FUSE – FUSE #24 IN JUNCTION BLOCK OPEN
Publication Date: SEPTEMBER 15, 1998

LIGHT TRUCK:
1999 SUPER DUTY F SERIES

ISSUE:

Some vehicles may exhibit no A/C, no temperature control, no trailer charge capability and/or an open junction block fuse #24. This may be caused by the A/C function selector switch having an intermittent short.

ACTION:

Replace the A/C function selector switch. The revised switch should reduce the possibility of a short. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

  1. Verify concern.
  2. Remove A/C function selector switch from A/C control and inspect switch for a letter A,B,C,D or a number 1,2,3,4. When looking at the switch with the shaft facing you, there will be a number or letter in the lower LH corner just above the “INDAK” scribe. Follow removal procedures outlined in the 1999 Super Duty F-Series Workshop Manual.
  3. If the switch has a letter A,B,C,D, the switch is suspect and should be replaced. If the switch has a number 1,2,3,4, the switch is revised and normal electrical system troubleshooting methods should be used to diagnose a concern. Check for shorts to ground in Circuits 296, 348, 441, and 439. Refer to the Electrical and Vacuum Troubleshooting Manual (EVTM), Page 54-2.
  4. Check service replacement switch for number designation before installing. If service switch indicates a letter designation, order a new switch and do not use the lettered switch. Dealer service stock should be purged of all lettered switches.
  5. Replace fuse.
  6. Verify repair.

PART NUMBERPART NAME
F6SZ-19B888-AAA/C Function Selector Switch
F2UZ-14526-MFuse

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
981903AReplace A/C Function Selector Switch And Fuse1.0 Hr.

DEALER CODING

BASIC PART NO.CONDITION CODE
19B888X1

OASIS CODES:

208000, 208100, 208200, 208300, 208999


Copyright 1998 Ford Motor Company