Pontiac Fiero 1988 Service Manual page 1023

CRUISE C O N T R O L : SC34
L4 VIN R
i : ALTERNATE CRUISE SYSTEM TEST (NO SCAN TOOL)
©WITH IGNITION OFF, DISCONNECT ECM CONNECTORS C1
AND C2
©IGNITION SWITCH: RUN
©CRUISE SWITCH: OFF
® MEASURE VOLTAGE AT Q TERMINAL 20 (GRY) TO GROUND
00
>
1
CO
I
0 VOLTS
©CRUISE SWITCH: ON
• MEASURE VOLTAGE AT TERMINAL 20
(GRY) OF C2 TO GROUND
BATTERY
REPLACE MULTI-FUNCTION LEVER
BATTERY 0 VOLTS
© MEASURE VOLTAGE AT C2 TERMINAL
14 (BRN) TO GROUND
BATTERY
CHECK RADIO FUSE, THE CRUISE
SWITCH, YEL (43) AND GRY (397)
WIRES FOR AN OPEN (SEE SCHEMATIC)
0 VOLTS
© DEPRESS THE BRAKE PEDAL WHILE
MEASURING VOLTAGE AT €2
TERMINAL 14 (BRN) TO GROUND
CHECK THE BRAKE SWITCH, CRUISE CONTROL
CLUTCH SWITCH (WITH MANUAL TRANSAXLE),
GRY (397) AND BRN (86) OR YEL (918) WIRES
FOR AN OPEN (SEE SCHEMATIC)
0 VOLTS
(Continued on next
page)
BATTERY
ADJUST/REPLACE THE BRAKE SWITCH
m
30
o