1991 FORD FESTIVA lights

Fig. 8: Underhood Fusible Link Block Identification

Courtesy of FORD MOTOR CO.
Fusible Link Identification
A - Brown (PTC) (1988-89 Carburetor) EFE Carburetor Heater
Brown (EGI) (1989-93 EFI) EFI System (1989-92), EGI-EFI System (1993)
B - Red (Main) Back-Up, Interior & Parking Lights, Brakelights, Taillights, Horn, Luggage Compartment Light, Turn Signal & Hazard
F l a sh e r Ligh t s, C l u st e r & Wa r n in g Ligh t s, R a d io , C iga r e t t e Ligh t e r , C h a r gin g & E missio n C o n t r o l S yst e ms, Wip e r / Wa sh e r S yst e ms,
A/C-Heater System, Cooling Fan System, Rear Window Defroster, Ignition & Starting Systems, Shift Lock System, Remote Control
Mirror, Ignition Key Reminder, Passive Restraint System (1990-93)
C - Brown (Head) Headlights, Daytime Running Lights, Starting & Charging System
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Article GUID: A00129179
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SERVICE INDICATOR & WARNING LIGHTS
1988-92 MAINT ENANCE Ford Motor Co. Service Indicator & Warning Lights
SERVICE INDICATOR & WARNING LIGHTS

Fig. 1: Identifying Dash Gauges & W arning Lights

Courtesy of FORD MOTOR CO.
CHECK ENGINE WARNING LIGHT
If functioning properly, the Check Engine warning light comes on when ignition switch is in the ON position and goes out after engine is
started. If light fails to glow with ignition on or remains on when engine is running, a malfunction exists in the electronic engine control
system. System needs to be checked and serviced.
CHARGING SYSTEM WARNING LIGHT
Light comes on when ignition switch is in the ON or START position and goes out after engine is started and alternator is charged. Light may
also glow when there is a heavy electrical load on the system. If light remains on after reducing electrical load, check electrical system.
OIL PRESSURE WARNING LIGHT
Light should come on briefly and go out after engine is started. If light remains on with engine running, oil pressure is low. Check oil level.
ENGINE COOLANT TEMPERATURE GAUGE
Gauge should register within the NORMAL band under regular operating conditions. If gauge rises into the HOT range, stop engine, allow it to
cool, and then check coolant level.
BRAKE WARNING LIGHT
The Brake light indicates one of 2 conditions: parking brake is engaged, or malfunction exists in the dual braking system. If functioning
properly, light should come on briefly with ignition switch in the ON position and then go out after engine is started and parking brake is
released. If light remains on, a malfunction is indicated. Service brake system.
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Article GUID: A00062872
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Differential Noise
ATF contaminated or level incorrect. Bearings worn or has excessive preload. Teeth on gears worn or damaged or has excessive backlash.
TESTING
PARK/NEUTRAL SWITCH TEST
1. Ensure engine starts in "P" or "N". Ensure back-up lights glow when ignition is on and selector lever in "R". If park/neutral switch is not
operating properly, disconnect connector at transaxle and check continuity between terminals. See Fig. 4
. If continuity is not as
indicated, replace park/neutral switch.

Fig. 4: Testing Park/Neutral Switch

Courtesy of FORD MOTOR CO.
KICKDOWN (DOWNSHIFT) SOLENOID TEST
1.Check Fuse

Ensure ignition is off. Inspect condition of 15 amp METER fuse located in interior fuse junction panel. If fuse is okay, go to step 4). If
fuse is blown, go to next step.
2.Check System

Ensure ignition is off. Replace 15 amp fuse. Turn ignition on. If fuse blows, go to next step. If fuse is okay, go to step 4).
3.Check For Short To Ground

Turn ignition off. Remove 15 amp METER fuse. Disconnect kickdown switch harness connector. Check continuity between
Black/Yellow wire terminal of interior fuse holder and ground. If continuity exists, inspect and repair short circuit as needed. If
continuity does not exist, replace 15 amp fuse. Go to next step.
4.Check Power Supply To Kickdown Switch

Ensure ignition is off. Disconnect kickdown switch harness connector. Turn ignition on. Measure voltage between Black/Yellow wire
terminal of kickdown switch harness connector and ground. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less,
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