mirror PONTIAC FIERO 1988 Service Repair Manual

BRAKES 5-11
Figure 10 Center Brake Pipes (Typical)
brake hoses should be checked for road hazard damage,
for cracks and chafing of the outer cover and for leaks and
blisters.
A light and mirror may be needed for an adequate
inspection.
If any of the above conditions are observed on a
brake hose it will be necessary to replace it.
Do not allow brake components to hang from the flexible
hoses as damage to the hoses may occur. Some brake
hoses have protective rings or covers to prevent direct con-
tact of the hose with other chassis parts. Besides causing
possible structural damage to the hose, excessive tension
could cause the hose rings to move out of their proper
locations.
BRAKE HOSE REPLACEMENT
Front Brake Hose (Figure 9)
Remove or Disconnect
1. Wheel and tire. See Section 3E.
Clean
* Dirt and foreign material from hoses and fit-
tings.
2. Brake pipe from hose. 0 Use a backup wrench on hose fitting.
* Be careful not to bend bracket or pipe.
3. Spring clip from female fitting at bracket.
4. Hose from bracket.
5. Bolt, hose, and two copper gaskets from caliper.
* Discard two copper gaskets.
Install or Connect (Figure 9)
NOTICE: See "Notice" on page 5-1 for steps 1
and 3.
1. Bolt, hose, and two copper gaskets to caliper.
0 Use new copper gaskets.
Lubricate bolt threads with brake fluid.
0 Fitting flange must engage caliper orientation
ledge.
Tighten
0 Bolt to 44 N.m (32 Ibs. ft.).
2. Hose into bracket.
There should be no kinks in hose.
3. Spring clip at hose mounting bracket.
4. Brake pipe to hose. 0 Use backup wrench on hose fitting.
0 Make sure that hose does not make contact
with any part of suspension. Check in extreme
right and extreme left turn conditions.
* Fittings to 15 N.m (1 1 Ibs. ft.).
5. Bleed brake system. See "Bleeding Brake Hydraulic
System" in this section.

DRIVEABILITY AND EMISSIONS 5.OL (VIN E) 6EZ-A-39
BEFORE USING THIS CHART, CHECK FOR MANIFOLD VACUUM TO EGR
@ GROUND DIAGNOSTIC TERMINAL. @ INSTALL A HAND HELD VACUUM PUMP WITH GAGE TO MANIFOLD
PUMP TO EGR VALVE.
@ USING A MIRROR,
OBSERVE EGR
DIAPHRAGM WHILE
APPLYING VACUUM.
DIAPHRAGM SHOULD OR
TERMINALS.
MOVE FREELY AND "ON",
ENGINE "OFF".
HOLD VACUUM FOR AT T
SHOULD LIGHT.
LEAST
20 SECONDS.
OBSERVE VACUUM GAGE ON
VACUUM PUMP.
HAS MOVED TO SEATED POSITION
CLEAR CODES AND CONFIRM "CLOSED LOOP"
OP

CONTENTS
ELECTRICAL DIAGNOSIS
Cell
1
2
3
4 5
10
11
12 14
20
21
22
23
30
31
33
34
40
4
1
60
61
62
63
64
65
66
67
68
Index
Introduction
Symbols
Troubleshooting Procedures Repair Procedures
Power Distribution
Fuse Block Details
Light Switch Details
Ground Distribution
Engine:
V6 VIN S
Engine: V8 VIN
F
Engine: V8 VIN E
Engine:
V8 VIN 8
Starter and Charging System
Coolant Fans
Vehicle Speed Sensor
Cruise Control Horns
Brake Warning System
Heater
Defogger
Air Conditioning: System Check
Air Conditioning: Blower Controls
Air Conditioning: Compressor Controls
Air Conditioning: Air Delivery
Air Conditioning: Blower Controls
Air Conditioning: Compressor Controls
Air Conditioning: Air Delivery Cell
77
8
1
82
86 90
9
1
100
102
103
110
111
112
114
117
120
130
133
134
135
141
143
145
150
151
201 202
203
Warnings and Alarms: Chime
Instrument Panel: Gages Cluster
Instrument Panel:
Digital Cluster
Driver Information Center
(DIC)
WiperlWasher
WiperlWasher: Pulse
Headlights
Headlight Doors
Headlights with Lamp Monitor
Exterior Lights
Exterior Lights with Lamp Monitor
Back Up Lights
Interior Lights
Interior Lights Dimming
Power Windows
Power Door Locks
Theft Deterrent
Hatch Release
Hatch Pull-Down
Power Mirrors
Automatic Day-Night Mirror
Lumbar Support
Radio Power Antenna
Component Location Views
Harness Connector Faces
Harness Routing Views

INDEX
Page
................... Front Marker 110-0
...................... Frontpark 110-0
......................... Hazard 110-0
........ Hazard with Lamp Monitor 111-0
..................... Headlights 100-0
........................ Doors 102-0
............ With Lamp Monitor 103-0
................. Nigh Level Stop 110-0
................... License 110.3,11 0.4
Park
........................... 110-0
............... Rear Marker 110.3,11 0.4
stop
........................... 110-1
...................... Tail 110.3,11 0.4
................ Tail with Monitor 111-2
Turn ........................... 110-0
Lights (Interior)
.............. Cargo Compartment 114-1
....................... Courtesy 114-0
.......................... Dome 114-0
...................... Glove Box 114-0
................. Lights Dimming 117-0
........................ Reading 114-0
................ Light Switch Details 12-0
.................... Mirrors (Power) 141-0
Automatic
DayINight ............ 143-0
................. Power Distribution 10-0
Radio
...................... With UK3 150-0
With
UK3 and Subwoofer
..................... Amplifier 15 0-2
Without Subwoofer Amplifier and
with
UK3 ..................... 150-5 With
Subwoofer Amplifier and
without UK3
..................
.................. Repair Procedures
Seats (Power)
Lumbar Support
.................
Starter ............................
........................... Symbols
........... Theft Deterlent (Passkey)
......... Troubleshooting Procedures
.................. Hatch Pull-Down
..................... Hatch Release
............... Vehicle Speed Sensor
Warnings (Audible)
Chime
.........................
................... Windows (Power)
WiperIWasher
With Pulse .....................
................... Without Pulse
Page

a FUSE BLOCK DETAILS: CTSY FUSE AND TAIL FUSE I:
.8 ORNIBLK
CONVENIENCE
CENTER
LIGHT
- CONSOLE RELAY (PAGE 1140) (PAGE 114-0) (PAGE 40-0)
- SWITCH DOOR LOCK DOOR LOCK MIRROR COMPARTMENT CLUSTER
(PAGE 1340) - S-W a LIGHT - (DIGITAL CLUSTER)
(PAGE 130-0) (PAGE 130-0) (PAGE 141-0) (PAGE 114-1) (PAGE 82-0)

BACK UP LIGHTS 1:
WITH DIGITAL CLUSTER I .a
.l LT GRN I I .8 LT GRN AUTOMATIC
"i
DAY-NIGHT 24 MIRROR
.8 BLK 1150
1 3BLK GROUND
DISTRIBUTION

a BACK UP LIGHTS
WITHOUT DIGITAL CLUSTER
.I LT GRN 124 .8 LT GRN AUTOMATIC 0AY.NIGHT 24 MIRROR
1 .8 LT GRN
RH
- BACK-UP -
.8 BLK
S308
.8 BLK 1150
I 3 BLK GROUNO
DISTRIBUTION

- POWER MIRRORS / f

POWER MIRRORS
TROUBLESHOOTING HINTS
e Try the following check before doing the Sys-
tem Check.
Check the CTSY Fuse by checking for opera-
tion of the
LH courtesy light.
a Go to System Check for a guide to normal
operation.
e Go to System Diagnosis for diagnostic tests.
SYSTEM CHECK
0 Use the System Check Table as a guide to
normal operation.
e Refer to System Diagnosis for a list of symp-
toms and diagnostic steps.
SYSTEM CHECK TABLE
the left and right
(Continued in next column)
COMPONENT LOCATION Page-Figure
..................... Fuse Block. Behind
LN side of IIP, below light switch. ...... 201-10-A
C238 (12
cavities) ................ LH shroud, ahead of center access hole. ........ 201-11-C
................. C303 (4 cavities) LN
shroud, near center access hole
C304 (4 cavities) ................. RH shroud, near center access hole
.......................... 6321 In center console, below switches
.......................... S203. I/P harness, behind instrument cluster. ........ 201-10-A
S221. .......................... Mirror harness, LN shroud at center access hole
S222. .......................... Mirror harness, LN shroud at center access hole
(Continued from
~revious column)
Put the Mirror
Select Switch in the R
position and operate the Mirror Control
Switch in the UP and
DOWN
Dositions
RN Outside Mirror
moves smoothly
upward and downward
perate the Mirror RH Outside Mirror
osition Switch in the moves
smoothly to the
LEFT and RIGHT
e Refer to System Diagnosis when a result is
not normal.
SYSTEM DIAGNOSIS
a Diagnostic steps for the symptoms listed in
the following table are listed after the table.
SYMPTOM TABLE
B: LW mirror does not operate in one or
C:
RH mirror does not operate in one or
A: BOTH MIRRORS DO NOT OPERATE
IN
ANY MODE
(A: BOTH MIRRORS DO NOT OPERATE IN
ANY MODE continued on next page)

POWER MIRRORS
(A: BOTH MIRRORS DO NOT OPERATE IN
ANY MODE continued from previous page)
Outside Mirror Switch.
1. Check ORN (40) wire.
B: LH MIRROR DOES NOT OPERATE IN
ONE OR MORE MODE
Measure: VOLTAGE
At: OUTSIDE
MIRROR SWTlCH
CONNECTOR (Connected)
Conditions:
Mirror Select Switch:
L
* Mold Mirror Position Switch in UP or
I DOWN position
Measure Correct
I For Diagnosis 1 Between Voltage
I Battery I See l I (LT GRN)
Hold Mirror Position Switch in the Left or
Right position.
See
1
@ If both voltages are correct, replace the
LH Outside Mirror Drive Unit, after
checking connector C303, the YEL (881,
LT GRN (89), LT BLU (82) and WHT (81)
wires.
1. Replace Outside Mirror Switch.
6: RH MlRROR DOES NOT OPERATE
IN ONE OR MORE
MODE
At: OUTSIDE MIRROR SWITCH
CONNECTCIR (Connected)
Mirror Select Switch:
R
Hold Mirror Position Switch in UP or
1 * Wold Mirror Position Switch in the Left 1
I or Right position. I
If both voltages are correct, replace the
RN Outside Mirror Drive Unit, after
checking connector
C304 and the YEL
(88), LT GRN/BLK (89), and LT BLU
(82) wires.
1. Redace Outside Mirror Switch.
CIRCUIT OPERATION
Each Outside Mirror has two reversible
Motors: one to adjust the mirror view up and
down, the other to adjust the mirror view
Right and Left. The driver operates four
Switches that control the polarity of the volt-
age to the Motors. The Mirror Select Switch
directs these control voltages to either the RH
or LH Outside Mirror. With the
Switches in the positions shown in
the schematic, the LH Outside Mirror is
moved. When the Mirror Position Switch is
moved to the UP position, battery voltage
from the ORN wire is applied to the
YEL or
YEL/BLK wire and the Up-Down Motor in
each Outside Mirror. The LN Outside Mirror
Up-Down Motor, has a path to ground through
the LT GRN wire, the Up contacts of the Mir-
ror Position Switch, and the BLK wire. The
LH Up-Down Motor runs and turns the mir-
ror up.
If the Mirror Switch Position is pushed to
the DOWN position, the same Motor receives
voltage. Now the polarity is reversed, with the
YEL or
YEL/BLK wires grounded. The
Motor runs in the opposite direction.
The RH Left-Right Motor operates in a
similar manner when the Mirror Position
Switch is moved to the LEFT position. The
WHT wire gets battery voltage and the LT
BLU wire is grounded through the Mirror
Position Switch. If the Mirror Position Switch
is pushed to the RIGHT position, the polarity
is reversed and the motor will run in the op-
posite direction. The RH Outside Mirror works in the same
way as the LH Outside Mirror when the Mir-
ror Select Switch is moved to the R position
and the Mirror Position Switch is operated.