1988 PONTIAC FIERO Service Repair Manual

8E -8 WINDSHIELD WIPER SYSTEMS - F CAWLINE
FOR INTERMITTENT OPEN
ILL
EXCEEDS
Fig. 7 Diagnostic Procedure 4

WINDSHIELD WIPER SYSTEMS - F CARLllNE 8E -7
HARNESS
CONNECTOR
RECONNECT MOTOR
WITHOUT COVER. WHEN
MOTOR IS SWITCHED
FROM "LO" TO "OFF" IS
PARK SWITCH LATCH ARM
IN POSITION TO CATCH
REPLACE PARK
SWITCH OR
COVER ASSEMBLY
I (PULSEONLY). I
DRIVE
PAWL.
LATCH. REPLACE ROTATION
DRIVE PAWL
LATCH ARM (MUST BE
OUT OF WAY WHEN
GEAR IS REMOVED) RELAY
SLOT
Fig. 8 Diagnostic Procedure 5

8E -8 WINDSHIELD WIPER SYSTEMS - F CARLINE
MOTOR CASE, VARY DELAY MODE FROM MINIMUM DELAY TlME TO
MAXIMUM DELAY TlME VOLTAGE SHOULD VARY FROM A MAXIMUM TO
IGNITION ON AND WIPER SWITCH ON MINIMUM
REMOVE COVER ARE
PARK SWITCH PULSE
TERMINALS TOUCHING
Fig. 9 Diagnostic Procedures 6 & 7

WINDSHIELD WIPER SYSTEMS - F CARLINE 8E -9
I PROCEDURE 8 I
NO "LO.' MODE I
WITH WIPER SWITCH
ON "LO", CONNECT
TEST LIGHT LEAD TO
GROUND AT WIPER
MOTOR CASE AND
PROBE HARNESS
TERMINAL
#2.
I PROBE C
I LOCATE AND
REPAIR OPEN
FROM WIPER
SWITCH TO
MOTOR. REFER
TO
WlPERlWASHER
SWITCH CHECK CHART.
RECONNECT HARNESS
PLUG TO COVER.
I
HARNESS
CONNECTOR OPEN CIRCUIT FROM
SWITCH TO MOTOR.
REPAIR AS NECESSARY.
2
PROBE HARNES
CHECK ARMATURE,
CIRCUIT BREAKER,
CIRCUIT BREAKER
GROUND, AND BRUSHES.
TERMINALS
#1 AND #3
I
IF NO CONTINUITY BETWEEN
TERMINALS #1 AND #3, REPLACE PARK SWITCH. I
HARNESS
I I Fig. 10 Diagnostic Procedure 8

BE -10 WINDSHIELD WIPER SYSTEMS - F CARLINE
I PROCEDURE 9 1
I I HARNESS I CONNECTOR
(Q)
CIRCUIT FROM WIPER SWITCH
TO MOTOR. REFER TO
WlPERlWASHER CHECK CONTINUITY
BETWEEN HARNESS
HARNESS
CONNECTOR
I
REFER TO WlPERlWASHER
SWITCH CHECK CHART. I
HARNESS
CONNECTORS
654321 9 8 7
GROUND, AND EEN TERMINALS #l & #8 IN WIRING
BLADES
CYCLE IN AND OUT OF
DOES MOTOR OPERATE ON "LO"?
Fig. 11 Diagnostic Procedures 9 & 10

WINDSHIELD WIPER SYSTEMS - F CARLINE BE -11
IPER ASSEMBLY WIRING DIAGRAM IRING DIAGRAM STANDARD & STANDARDIWASH.OUTWIPE WIPER ASSEMBLY
ELECTRONIC
Fig. 12 WIS Wiper-Washer Circuit Diagrams
Install or Connect
1. New park switch assembly (standard switch has
no extra terminals. Pulse switch requires them).
2. FoIlow "Wiper Cover Replacement" procedure
carefully.
WIPER MOTOR REPLACEMENT
Remove or Disconnect
1. L.H. andR.H. wiper arms
2. Cowl cover
3. Wiper arm drive link from crank arm
4. Electrical connectors
5. Wiper motor attaching bolts
6. Wiper motor guiding crank arm through hole
Install or Connect
1. Wiper motor guiding crank arm through hole
2. Wiper motor attaching bolts
3. Electrical connectors
4. Wiper arm drive link to crank arm
5. Cowl cover
6. L.H. and R.H. wiper arms
WIPER TRANSMISSION
Fig. 19
Remove or Disconnect
1. Raise hood.
2. Right and left wiper arm and blade assemblies

8E -12 WINDSHIELD WIPER SYSTEMS. F CAWLINE
2. WIPER MOTOR TO DASH MOUNTING SCREWS
WIPER MOTOR
REMOVING FROM VEHICLE. DISCONNECT
ALL WIRING FROM WIPER AND PERFORM
GO TO WlPERlWASHER SWITCH CHECK CHART.
E PARK RELAY
WlLL CLICK WlLL BE NO OBSERVABLE
Fig. 13 Wiper On-Gar Check
3. Loosen (do not remove) attaching nuts securing
transmission drive
link(s) to motor crank arm
4. Air inlet screw/panel
5. Transmission drive link(s) from the motor crank
arm
6. Transmission-to-body attaching screws
7. Transmission and linkage assembly by guiding it
through access hole in shroud upper panel
install or Connect
1. To install transmission and linkage assembly, po-
sition assembly in plenum chamber through the
shroud upper panel openings.
2. Loosely install transmission to body attaching
screws.
3. Transmission drive link to motor crank arm and
tighten attaching nuts to
7 N'm (64 lbs. in.)
4. Align transmission and tighten attaching screws to
body.
5. Air inlet screen/panel
6. Wiper arm and blade assemblies and adjust as de-
scribed under "Wiper Arm Adjustment"
7. Check wiper operation, wipe pattern and park
position.
8. Cowl vent screen or cowl upper panel and screen
9. Check washer nozzle alignment.
WIPER ARM
Fig. 20
Remove or Disconnect
1. With wipers "On", turn ignition "Off" when
wiper arm is at the mid-wipe position.
2. Lift wiper arm from windshield and pull retaining
latch.
3. Arm from transmission shaft
Install or Connect
1. Arm on transmission shaft
2. Push retaining latch in and return arm to
windshield.
3. Park wipers
WIPER ARM ADJUSTMENT
Adjust
Adjustment should not be required. However, if
adjustment is required, it can be performed as follows:
1. Remove the right arm and blade assembly.
2. Loosen, do not remove, the transmission drive
link-to-motor crank arm attaching nuts.

WINDSHIELD WIPER SYSTEMS - F CARLINE 8E -13
'MIST IS SPRING
RETURN AND OPTIONAL
Fig. 14 Testing Standard WIS Wiper-Washer Switch
Fig.
15 Testing Pulse WIS Wiper-Washer Switch
3. Rotate the left arm assembly to a position slightly
below the blade stops.
4. Tighten the attaching nuts on the transmission
drive
link(s) to motor crank arm 7.5 N'm (66 lbs.
in.).
5. Position the right arm and blade assembly slightly
below the blade stop and install arm assembly to
transmission shaft.
6. Lift the right and left arm and blade assemblies
over the stops.
7. Check wipe pattern and park position. Dimension
A is 18 mm (1 1/16") from top of driver's blade
on
outwipe to paint line and 6 mm (15/64") from
edge of glass in park position.
The correct park position and
outwipe dimensions
are determined with the wipers operating at low speed
on a wet glass.
WIPER BLADE
Fig. 20
Remove or Disconnect
Anso@
1. Place wiper arm at the mid-wipe position, see
"Wiper Arm"
2. Lift blade retainer.
3. Wiper blade
TY~GO@
1. Place wiper arm at the mid-wipe position, see
"Wiper Arm".
2. Disengage blade retainer with a small screwdriver.
3. Wiper blade