Spectrum 3.0L GM - Page 204

204
Step Action Value(s) Yes No
5
 Check pedal sensor
 Key OFF, disconnect VIC 1. Remove pins K
and J from the connector.
 Reconnect VIC 1. Key ON.
 Measure the voltage from each wire to en-
gine ground while slowly depressing the
pedal.
 Sweep, watch for glitch
 Repeat on other side
NOTE: Pin J will show ½ the voltage of pin K.
This is normal operation
Does the voltage sweep with no glitches from
greater than 0.09 volts to less than 4.97 volts on
pin A and from greater than 0.09 to less than
2.49 volts on pin B?
NOTE: Do not probe wires without proper ser-
vice tool. Permanent harness damage may
result.
Reinstall the
pins to the
proper posi-
tions in the
connector.
Go to Step
(6)
Reinstall the
pins to the
proper posi-
tions in the
connector.
Replace pedal
position sen-
sor. Go to
Step (8).
6
 Key OFF, disconnect ECU-A
 Measure the resistance from VIC 1 pin K to
ECU-A pin H2 and VIC 1 pin J to ECU-A pin
F3.
Is the resistance less than 5?
Go to Step
(7)
Repair the
open in the
harness. Go
to Step (8)
7
 Connect the ECU-A and VIC 1 connectors.
With the monitor or DST connected, wiggle
the ECU-A connector.
Are any glitches observed while wiggling the
connector?
Repair or re-
place the
harness. Go
to Step (8)
Replace the
ECU. Go to
Step (8).