Pontiac Fiero 1988 Service Manual page 991

STARTER AND CHARGING SYSTEM
V6 V S N 9 A N D 1 4 V I N R
gine symptoms that would cause a no start
condition. To use the tests under other condi-
tions could result in misdiagnosis.
© Diagnostic steps for the symptoms listed in
the following table are listed after the table.
S Y M P T O M TABLE
HI!
A: Starter Solenoid does not click and engine
does not crank
B: Starter Solenoid clicks, but engine does
not crank or cranks slowly
STARTER SOLENOID D O E S NOT
CLICK AND ENGINE D O E S NOT
CRANK (TABLE 1)
Measure: VOLTAGE
At: STARTER SOLENOID
Conditions:
• Transaxle Position: PARK (Auto-
matic Transmission)
• Clutch: DEPRESSED (Manual
Transmission)
• Ignition Switch: START
Measure
Between
Correct
Voltage
For
Diagnosis
S (PPL) &
Ground
Battery See 1
• If voltage is correct, replace Starter Sole-
noid. (Check that the Starter Motor is
properly grounded to the engine before re-
placing the Starter Solenoid. Scrape any ex-
cess paint, rust or dirt from the Starter
Motor mounting bolts.) Refer to section 6D
for replacement procedures.
1. Go to Tkble 2 (Automatic Transmission) or
Table 3 (Manual Transmission).
S T A R T E R S O L E N O I D D O E S N O T
CLICK AND ENGINE D O E S N O T
C R A N K ( T A B L E 2 — A U T O M A T I C
T R A N S A X L E )
Measure: VOLTAGE
At: TRANSAXLE POSITIONS SWITCH CON-
NECTOR (Disconnected)
Condition:
• Ignition Switch: START
Measure
Between
Correct
Voltage
For
Diagnosis
F (YEL) &
Ground
Battery See 1
• If voltage is correct, go to Table 4.
1. Go to Table 6.
A : S T A R T E R S O L E N O I D D <
3ES
N O T
CLICK AND ENGINE DOES NOT
CRANK (TABLE 3 -
MANUALTRANSAXLE)
Measure: VOLTAGE
At: CLUTCH START SWITCH CONNECTOR
(Disconnected)
Condition:
• Ignition Switch: START
Measure
Between
Correct
Result
For
Diagnosis
YEL (5) wire &
Ground
Battery See 1
• If voltage is correct, go to Table 5.
1. Go to Table 6.
i: S T A R T E R S O L E N O I D D O E S I
C L I C K A N D ENGINE D O E S N O T
C R A N K (TABLE 4 - A U T O M A T I C
T R A N S A X L E )
Connect: FUSED JUMPER
At: TRANSAXLE POSITION SWITCH
CONNECTOR (Disconnected)
Condition:
• Ignition Switch: START
Jumper
Between
F (YEL) & G
(PPL)
Correct
Result
Engine cranks
For
diagnosis
See 1
• If engine cranks, replace Transaxle Posi-
tion Switch (Check Transaxle Position
Switch adjustment before replacing the
Switch.)
1. Check PPL (6) wire for an open.
A : S T A R T E R S O L E N O I D DOES N O T
C L I C K A N D ENGINE D O E S N O T
C R A N K ( T A B L E 5 - M A N U A L
T R A N S A X L E )
Connect: FUSED JUMPER
At: CLUTCH START SWITCH CONNECTOR
(Disconnected)
Condition:
• Ignition Switch: START
Jumper
Between
YEL (5) wire &
PPL (6) wire
Correct
Result
Engine cranks
For
Diagnosis
See 1
• If engine cranks, check/replace the Clutch
Start Switch.
1. Check PPL (6) wire for an open.
oo
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