Pontiac Fiero 1988 Service Manual page 1020

L 4 V I N R
lii
i i
30 TO 55 OHMS
LESS THAN 30 OHMS MORE THAN 55 OHMS
© RECONNECT ECM AND BATTERY CABLE
® REMOVE CONNECTOR FROM CRUISE
CONTROL SERVO
® JUMPER TERMINAL C OF CRUISE
CONTROL SERVO TO GROUND
©JUMPER TERMINAL A OF SERVO TO
BATTERY
© RUN ENGINE FOR ONE MINUTE, THEN
TURN IT OFF
©JUMPER TERMINAL E OF SERVO TO
BATTERY
CHECK FOR A SHORT TO
GROUND IN THE DK BLU AND
DK BLU/WHT (403) WIRES OR IN
THE CRUISE CONTROL SERVO
(SEE SCHEMATIC)
CHECK FOR AN OPEN IN THE CRUISE
CONTROL SERVO OR DK BLU/WHT AND DK
BLU (403) WIRES (SEE SCHEMATIC)
VACUUM PULLS SERVO ALL THE
WAY IN
© REMOVE JUMPER FROM
TERMINAL E OF SERVO
V A C U U M D O E S N O T P U L L
S E R V O IM
• CHECK FOR BLOCKED OR
L E A K I N G V A C U U M S O U R C E
V A C U U M H O L D S S E R V O A L L T H E
WAY IN
VACUUM DOES NOT
H O L D
SERVO
A L L T H E
WAY IN
VACUUM
S O U R C E O K
REPLACE ECM
VACUUM SOURCE BLOCKED OR
LEAKING
® REMOVE JUMPER FROM
TERMINAL E OF SERVO
REPAIR
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