Ignition Switch Electrical Diagnosis Continuity Test

Refer to Section 11-05 for Blade Terminal-Type Connector Switch — Mechanical Test.

IGNITION SWITCH MECHANICAL DIAGNOSIS

Condition	Possible Source	Action
High Key Efforts	Damaged lock cylinder.	Lubricate cylinder and check for burrs on key and/or correct key cut. If effort is still excessive, replace lock cylinder.
	Shrouds mis-aligned.	Align shroud to fit properly.
	Casting/actuator binds, sticks, grabs, with key rotation.	If improper fit between casting and actuator exists, replace parts. If burrs are found on actuator surfaces which contact the casting during key travel, gently file these surfaces until smooth. At no time attempt to file teeth of actuator. If serious burrs are found on casting surface which contact actuator during key travel, replace the casting. If actuator teeth show excessive wear or are burred, replace actuator. Assemble lock housing assembly taking care to thoroughly lube all internal components with Multi-Purpose Grease D0AZ-19584-AA (ESR-M1C159-A, ESB-M1C93-A) or equivalent and check key efforts. If still high, replace lock housing assembly.
	Damaged ignition switch.	Replace the ignition switch.

Steering Column

Refer to the following charts for steering column diagnosis procedures.

STEERING COLUMN DIAGNOSIS

Condition	Possible Source	Action
Squeak, Moan When Steering Wheel Turned	Gear rolled up or down allowing input shaft or pinch bolt to contact boot.	Reposition rack and pinion to proper position and/or reposition boot.
Engine Compartment Noise, Fumes, Heat, Vapors and/or Water and Liquids Enter Passenger Compartment	Foam ring distorted leaving gap to lower shaft.	Replace boots with visual gaps. Realign gear and/or boot to specifications. If condition isn't resolved, replace boot.
	Foam ring missing.	Replace boot.
	Boot retaining nuts missing.	Install nuts.
	Boot mispositioned.	Reposition boot.
	Dash absorber under boot sealing surface.	Reposition absorber under gap-hinder lip.
	Dash panel surface deformed.	Replace rope caulk on sealing surface of boot.
	Boot missing.	Install new boot.
	Boot cut or torn.	Install new boot.
	Improper assembly of power steering isolator plastic sleeve.	Replace boot.
Rubbing Noise	Intermediate Shaft Area
	Boot mispositioned on intermediate shaft.	Install properly.
	U-joint bearings damaged or contaminated.	Replace intermediate shaft.
	Lower Column Area
	Damaged, fractured bearing or retainer.	Replace bearing and retainer.
	Upper Column Area
	Wheel rubbing on shroud.	Install shroud to proper location.
	Damaged upper bearing sleeve, lock housing or retainer.	Remove shroud and check for proper installation of lock housing, upper bearing and upper bearing snap ring. Install as required.
	Damaged bearing.	Replace bearing. Replace shaft, lock housing or outer tube.
Clunk During Acceleration or Deceleration	Loose intermediate shaft to gear.	Tighten retaining bolts.
Rattles, Loose Steering	Intermediate Shaft Area
	Improper boot assembly.	Install and tighten screws.
	Improper interference fit between plastic collar and extension shaft.	Install to proper location. Replace if necessary.
	Excessive universal joint lash.	Replace intermediate shaft.
	Power steering isolator rubber bond separation.	Replace intermediate shaft.
	Lower Column Area
	Loose intermediate shaft to column or column to support attachment.	Tighten attachments.
	Upper Column Area
	Improper shroud assembly.	Install and tighten shroud.
	Column to support bracket loose.	Tighten attachment.
	Loose shaft to upper bearing.	Replace bearing or shaft.
	Lock housing assembly.	Replace parts as required.
Binding/Heavy Effort/ No Returnability/ Column Grounded/ Sticks/Binds/Grabs	Improper installation of dash boot.	Reposition boot.
	Improperly assembled universal joint.	Replace intermediate shaft.
	Upper column.	Remove column and check column for binding while disconnected from intermediate shaft. If it binds: A. Remove column shaft and check it for straightness — replace shaft. B. Check upper and lower bearing for ease of rotation—replace. C. Check for foreign matter in column—remove foreign matter. D. Check for contact of shaft to other components—replace parts required.