Pontiac Fiero 1988 Service Manual page 384

ENGINE ELECTRICAL 6D-3 .
NO CRANKING, NO SOUND FROM SOLENOID
TURN HEADLIGHTS AND DOME L I T E ON
TURN K E Y TO S T A R T
LIGHTS DIM OR GO OUT L I G H T S STAY BRIGHT
CHECK B A T T E R Y S T A T E O F - C H A R G E
G R E E N E Y E SHOWING
CHARGE B A T T E R Y ,
CHECK FOR DRAIN.
AND C H E C K
G E N E R A T O R .
C H E C K CRANKING
V O L T A G E AT
B A T T E R Y POSTS.
LESS THAN 9.6 V O L T S .
TEST B E T T E R Y .
IF OK. REPAIR
S T A R T E R .
9.6 V O L T S OR MORE.
C H E C K V O L T A G E FROM
ENGINE BLOCK TO BATT.
NEG. POST. K E Y IN S T A R T
POSITION. (POS. L E A D ON
B L O C K ) .
.5 V O L T OR MORE L E S S THAN .5 V O L T
C L E A N AND TIGHTEN
GROUND C A B L E CONN.
AND/OR R E P L A C E
C A B L E .
C H E C K CRANKING
V O L T A G E AT S T A R T E R
" B " TERMINAL
JO
L E S S THAN 9 V O L T S
TURN ON RADIO, AND H E A T E R
O P E R A T E OK DON'T O P E R A T E
C A R S WITH
AUTO. TRANS.
C A R S WITH
MANUAL TRANS.
CHECK V O L T A G E AT
C L U T C H SWITCH TERMINAL
(CLUTCH D E P R E S S E D ,
K E Y IN S T A R T ) .
"""""" t
CHECK B U L K H E A D
CONNECTOR. F U S I B L E
LINK AND IGNITION
SWITCH CONNECTIONS.
MORE THAN 7 V O L T S
ON BOTH TERMINALS.
H I
LESS THAN 7 V O L T S
ON BOTH TERMINALS.
C H E C K CONNECTIONS
AND V O L T A G E A T
SOLENOID * ' S " T E R M .
9 V O L T S OR MORE
C L E A N AND T I G H T E N
POS. B A T T E R Y C A B L E
T E R M I N A L S AND/OR
R E P L A C E C A B L E .
C H E C K F U S I B L E LINK
AND B U L K H E A D
CONNECTOR.
LESS THAN 7 V O L T S
MAN. TRANS. | A U T O . TRANS.
F A U L T Y PURPLE
WIRE TO S T A R T E R
7 V O L T S OR MORE
L E S S THAN 7 V O L T S
ON ONE TERMINAL.
CHECK C L U T C H SWITCH
ADJUSTMENT AND
CONNECTOR, IF OK.
R E P L A C E SWITCH.
WITH K E Y IN S T A R T ,
CHECK V O L T A G E AT
IGNITION SWITCH
SOLENOID T E R M .
REPAIR S T A R T E R
7 V O L T S OR MORE
LESS THAN 7 V O L T S J
1 1
REPAIR WIRE
R E P L A C E
FROM IGNITION SWITCH.
IGNITION SW.
G20201-6D
Fig. 1 Electrical System General Diagnosis - 1 of 2