Mitsubishi 1989-1993 GALANT Service Manual page 305

FUEL SYSTEM <SOHC-16 VALVE> - :::,:k:t?=tiion Of MF'
INSPECTION
Using Scan Tool
l -
Function
D a t a r e a d i n g / 5 5
In a new vehicle [driven approximately 500 km (300 miles) or less], the IAC valve position sometimes exceeds the
standard value by approximately 20 steps.
Caution
When shifting the selector lever to the D range, apply brake to prevent the vehicle from moving forward.
HARNESS INSPECTION
connector
Data display Check condition
Engine coolant tem-
l
perature: 85 to 95°C
position step
(185 to 203'F)
Lights, electric cool-
l
ing fan, accesso-
ries: OFF
Transaxle: Neutral
l
(P range for A/T)
Closed throttle posi-
l
tion switch: ON
Engine: At idle
l
(Compressor clutch
to be operating in
case air conditioning
switch is ON)
Check for open circuit, or short-circuit
to ground, between engine control
module and IAC valve position sensor.
Engine control module connec-
l
tor: Disconnected
l
module harness
tor. Disconnected
Check for continuity of the ground
circuit.
l
tor: Disconnected
Load state
Air conditioning switch:
OFF
Air conditioning switch:
Turn from OFF to ON
Air conditioning
l Increase from 3-40 I
switch: OFF
step
Selector lever: Shift to
l
harness