Transmission, Automatic—External Controls

Use the diagnosis charts to aid in determining possible condition sources and necessary service actions for the shift control linkage.

SHIFT CONTROL LINKAGE DIAGNOSIS

Condition	Possible Source	Action
Starter inoperative in PARK and/or NEUTRAL Back-Up Lamps Not Operating Correctly	Neutral switch worn or damaged.	Check neutral switch for continuity, proper connection.
	Transmission cable retainer bracket loose at steering column.	Secure bracket by tightening two bolts.
	Cable is loose at transmission retainer bracket.	Secure cable in bracket.
	Shift linkage misadjusted	Re-adjust shift linkage.
Transmission Range Indicator Does Not Correspond to the Transmission Gear	Shift cable retainer bracket is loose at steering column.	Tighten bracket retaining bolts.
	Transmission range indicator linkage misadjusted	Adjust transmission range indicator linkage at column.
	Cable is loose at transmission retainer bracket.	Secure cable in bracket.
	Shift linkage misadjusted.	Re-adjust shift linkage.
Transmission Range Indicator Does Not Illuminate	Bulb burned out.	Replace bulb.
	Wiring harness damaged.	Install new wiring harness.
Rattle, Noise, Buzz, etc.	Shift knob loose	Tighten knob locknut.
	Selector lever and housing assembly loose.	Tighten housing attaching bolts.
	Cable assembly grommet not secure to dash panel.	Secure grommet to dash panel.
Water Enters Inside the Vehicle	Cable assembly grommet not secure to dash panel.	Secure grommet to dash panel.
	Cable assembly grommet torn.	Install new cable assembly.
Shifter Will Not Release From PARK	Key interlock cable damaged, restricted.	Service, replace or remove restriction as necessary.
Shifter Will Not Release From PARK With Key in ON Position and Brake Pedal Depressed	Stoplamp switch inoperative.	Replace switch.
	Shift knob loose or not fully seated	Properly install knob or replace.
	Interlock cable damaged or restricted.	Service or replace as necessary.
Shifter Will Not Release With Key in OFF Position	Shift knob loose or not fully seated	Properly install knob or replace.
	Interlock cable damaged or restricted.	Service or replace as necessary.
Shifter Release From Park (Ignition in LOCK or ACC Position)	Interlock cable loose at column or shifter.	Tighten as necessary.
Shifter Releases From Park (Ignition in RUN Position)	Interlock cable and solenoid damaged.	Service as necessary.
	Electrical connector loose or disconnected.	Connect electrical connector securely.