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Jeep Wrangler TJ. Manual - part 473

SPECIFICATIONS

TORQUE CHART

TORQUE SPECIFICATIONS

DESCRIPTION

N·m

Ft. Lbs.

In. Lbs.

Tilt Steering Column

Steering Wheel Nut

—

Tilt Steering Column

Mounting Nuts

—

150

Tilt Steering Column

Coupler Bolt

—

Non-Tilt Steering Column

Steering Wheel Nut

—

Non-Tilt Steering Column

Mounting Nuts

—

150

Non-Tilt Steering Column

Coupler Bolt

—

IGNITION SWITCH

DESCRIPTION

The electrical ignition switch is located on the

steering column. It is used as the main on/off switch-
ing device for most electrical components. The
mechanical key cylinder is used to engage/disengage
the electrical ignition switch.

DIAGNOSIS AND TESTING - IGNITION SWITCH

ELECTRICAL DIAGNOSIS

For ignition switch electrical schematics, Refer to

the appropriate section for the component.

MECHANICAL DIAGNOSIS (KEY DIFFICULT TO
ROTATE)

Vehicles equipped with an automatic trans-

mission and a floor mounted shifter: a cable is
used to connect the interlock device in the steering
column assembly, to the transmission floor shift
lever. This interlock system is used to lock the trans-
mission shifter in the PARK position when the key
cylinder is rotated to any position. If the ignition key
is difficult to rotate to or from any position, it may
not be the fault of the key cylinder or the steering
column components. The brake transmission shift
interlock cable may be out of adjustment. (Refer to
21 - TRANSMISSION/TRANSAXLE/AUTOMATIC -
30RH/GEAR SHIFT CABLE - ADJUSTMENTS). The
interlock system within the steering column is not
serviceable. If repair is necessary, the steering col-

umn assembly must be replaced. (Refer to 19 -
STEERING/COLUMN - REMOVAL).

Vehicles equipped with a manual transmis-

sion and a floor mounted shifter: on certain mod-
els, a button is located on the steering column behind
the ignition key cylinder. The button must be manu-
ally depressed to allow rotation of the ignition key
cylinder from the off to lock positions. If it is diffi-
cult to rotate the key to any position, the lever mech-
anism may be defective. This mechanism is not
serviceable. If repair is necessary, the steering col-
umn assembly must be replaced.(Refer to 19 -
STEERING/COLUMN - REMOVAL).

REMOVAL

The ignition key must be in the key cylinder for

cylinder removal. The key cylinder must be removed
first before removing ignition switch.

(1) Remove key cylinder. (Refer to 19 - STEER-

ING/COLUMN/LOCK

CYLINDER

HOUSING

REMOVAL).

(2) Remove lower steering column cover screws

and remove cover.

(3) Remove the multi-function switch.
(4) Disconnect the electrical connector at the rear

of the ignition switch.

(5) Remove the ignition switch mounting screw

(Fig. 8). Use tamper proof torx bit to remove the
screw.

(6) Pull the ignition switch straight out to remove

from the locking tabs (Fig. 9)

COLUMN

19 - 9

COLUMN (Continued)

INSTALLATION

The ignition key must be in the key cylinder for

cylinder installation. The key cylinder must be
aligned with the ignition switch for installation.

(1) Before installing ignition switch, rotate the slot

in the switch to the ON position (Fig. 10).

(2) Connect the electrical connector to rear of igni-

tion switch. Make sure that locking tab is fully
seated into wiring connector.

(3) Position the switch to the column and install

tamper proof screw. Tighten screw to 3 N·m (26 in.
lbs.).

(4) Test the operation of the lock cylinder for

smooth rotating.

(5) Install the multi-function switch.
(6) Install steering column lower cover.

KEY-IN IGNITION SWITCH

DESCRIPTION

The key-in ignition switch is integral to the igni-

tion switch, which is mounted on the left side of the
steering column, opposite the ignition cylinder. It
closes a path to ground for the instrument cluster
chime warning circuitry when the ignition key is
inserted in the ignition cylinder and the driver door
jamb switch is closed (driver door is open). The
key-in ignition switch opens the ground path when
the key is removed from the ignition cylinder.

The key-in ignition switch cannot be repaired and,

if faulty or damaged, the entire ignition switch must
be replaced. (Refer to 19 - STEERING/COLUMN/IG-
NITION SWITCH - REMOVAL).

DIAGNOSIS AND TESTING - KEY-IN IGNITION
SWITCH

For circuit descriptions and diagrams, Refer to the

appropriate sections on the individual components.

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,

REFER

ELECTRICAL

PASSIVE

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING

WHEEL,

STEERING

COLUMN,

INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.

(1) Disconnect and isolate the battery negative

cable. Remove the steering column shrouds. Unplug
the key-in ignition switch wire harness connector
from the ignition switch.

Fig. 8 IGNITION SWITCH MOUNTING SCREW

1 - Tamper Proof Torx Screw
2 - Ignition Switch

Fig. 9 IGNITION SWITCH TABS

1 - Ignition Switch
2 - Locking Tabs

Fig. 10 IGNITION SWITCH ON POSITION

1 - Ignition Switch
2 - Rotate to On Position

19 - 10

COLUMN

IGNITION SWITCH (Continued)

(2) Check for continuity between the key-in switch

sense circuit and the left front door jamb switch
sense circuit terminals of the key-in ignition switch.
There should be continuity with the key in the igni-
tion cylinder, and no continuity with the key removed
from the ignition cylinder. If OK, go to Step 3. If not
OK, replace the faulty ignition switch assembly.

(3) Check for continuity between the left front door

jamb switch sense circuit cavity of the key-in ignition
switch wire harness connector and a good ground.
There should be continuity with the driver door open,
and no continuity with the driver door closed. If OK,
see the diagnosis for Instrument Cluster in this
group. If not OK, repair the circuit to the driver door
jamb switch as required.

KEY CYLINDER

REMOVAL

The ignition key must be in the key cylinder for

cylinder removal. The key cylinder must be removed
first before removing ignition switch.

(1) If equipped with an automatic transmission,

place shifter in PARK position.

(2) Rotate key to ON position.
(3) A release tang is located on bottom of key cyl-

inder (Fig. 11).

(4) Position a small screwdriver or pin punch into

tang access hole on bottom of steering column lower
cover (Fig. 12).

(5) Push the pin punch up while pulling key cylin-

der from steering column.

INSTALLATION

The ignition key must be in the key cylinder for

cylinder installation.

(1) Install the lock cylinder into the housing using

care to align the end of the lock cylinder with the
ignition switch.

(2) Push the lock cylinder in until it clicks.
(3) Rotate the key to the lock position.

STEERING WHEEL

REMOVAL

(1) Disable and remove the drivers side airbag.(Re-

fer to 8 - ELECTRICAL/RESTRAINTS/DRIVER AIR-
BAG - REMOVAL).

(2) Partially remove the steering wheel bolt and

leave the bolt in the column.

(3) Install puller C-3894–A or equivalent using the

top of the bolt to push on. (Fig. 13)

Fig. 11 KEY CYLINDER RELEASE TANG

1 - KEY CYLINDER
2 - RELEASE TANG

Fig. 12 KEY CYLINDER RELEASE HOLE

1 - Lower Cover
2 - Access Hole
3 - Pin Punch

COLUMN

19 - 11

KEY-IN IGNITION SWITCH (Continued)

NOTE: Ensure the puller jaws are seated in the
pockets (Fig. 14) of the steering wheel armature.

(4) Remove the steering wheel.

INSTALLATION

NOTE: Do not reuse the old steering wheel bolt (a
new bolt must be used)

(1) Install steering wheel to the column

NOTE: Be certain that the steering wheel mounting
bolt is tightened to the proper torque specification
to ensure proper clockspring operation.

(2) Install the new steering wheel bolt. Tighten the

bolt to 54 N·m (40 ft. lbs.).

(3) Install the drivers side air bag. (Refer to 8 -

ELECTRICAL/RESTRAINTS/DRIVER

AIRBAG

INSTALLATION).

Fig. 13 STEERING WHEEL PULLER

1 - PULLER C-3894-A
2 - STEERING WHEEL

Fig. 14 Steering Wheel Pockets

1 - STEERING WHEEL POCKETS

19 - 12

COLUMN

STEERING WHEEL (Continued)

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