Procedures
Brake light switch, removing and installing/adjusting
Two different styles of brake light switch were used in production. For servicing purposes they will be referred to here as "old style" and "new style".
It is important to identify which style of switch is installed prior to servicing as each requires specific removal and installation/replacement procedures.
Notes: On Diesel models and gasoline models with cruise control, Brake Switch -F- and Brake Pedal Switch (cruise control DFI) -F47- are integrated. The following procedures apply to all models regardless of switch.
Only "old style" switches can be removed and reinstalled/adjusted.
"New style" switches must NOT be reused after removal. Always replace.
CAUTION: Should a brake light switch require replacement, only a specific "new style" switch is available (supercedes all previous part number versions). This switch requires that critical procedures be followed prior to and during installation.
Preparation
- Remove driver's side lower instrument panel cover.
- Disconnect electrical connector from brake light switch.
- Identify style of switch installed:
"Old style" switch is identified by large (approximately 10 mm) plunger tip button, and square plunger shaft. Removing and installing/adjusting below.
"New style" switch is identified by small (approximately 4 mm) plunger tip without button, and round plunger shaft.
"Old style" brake light switch, removing and installing/adjusting
Note: The following applies only to an existing, functional "old style" switch that is removed and reinstalled/adjusted.
Removing
- Turn switch counter-clockwise 90°
- Pull switch out from retainer mounting hole.
Installing/adjusting
- Before installing, pull out plunger completely.
- Depress and hold brake pedal in down position.
- Note orientation of retainer tabs on switch and carefully insert switch into retainer mounting hole
- Secure switch by turning clockwise 90°
- Slowly release brake pedal to stop.
Note: The above action automatically adjusts the switch plunger travel.
- Reconnect electrical connector to switch.
- Check function of brake light switch.
"New style" brake light switch, removing and installing
Note: The following applies only to a "new style" switch that is removed and replaced.
Removing
- Turn switch counter-clockwise 45°
- Pull switch out from retainer mounting hole.
- Dispose of switch accordingly.
CAUTION: "New style" switches must NOT be reused after removal. Always replace.
Installing
CAUTION: "New style" switches have an internal switch mechanism that will be damaged if not installed and adjusted according to the following procedure.
DO NOT depress switch plunger or otherwise rotate the retaining collar of the switch prior to installation.
Brake pedal must be held in the up position (not depressed during switch installation.
- Before installing, pull out plunger -arrow- completely.
- Hold brake pedal in up position (against stop).
- Note orientation of retainer tabs -1- and -2- on switch and carefully insert switch into retainer mounting hole.
- Push switch in and seat fully into opening (pressing plunger against brake pedal to adjust).
- Once seated, secure switch by turning clockwise 45°.
Note: The above action turns the plunger shoe into the correct orientation to make electrical contacts in switch operate, as well as locks in the plunger adjustment against the brake pedal.
CAUTION: When installing, switch must be rotated until it is fully locked and the electrical connector is in the horizontal position. Inspect to ensure internal stop pin on retaining collar is fully seated against outer shell.
- Reconnect electrical connector to switch.
- Check function of brake light switch.