Pontiac Fiero 1988 Service Manual page 1021

L4 ViN R
• PLUG THE VACUUM RELEASE PORT
• RUN ENGINE FOR ONE MINUTE,
THEN TURN IT OFF
• JUMPER TERMINAL E OF SERVO TO
BATTERY
VACUUM PULLS SERVO ALL THE
WAY IN
i REMOVE JUMPER FROM TERMINAL
E OF SERVO
VACUUM DOES NOT PULL SERVO IN
R E P L A C COJISE CONTROL SERVO
VACUUM HOLDS SERVO ALL THE
WAY IN
• DISCONNECT VACUUM RELEASE
SOLENOID
• TURN THE IGNITION SWITCH TO
RUN
• MEASURE THE VOLTAGE BETWEEN
A (PPL) OF CONNECTOR AND
GROUND
VACUUM DOES NOT HOLD
SERVO ALL THE WAY IN
REPLACE CRUISE CONTROL SERVO
(Continued on next page)