Checking The Control System (When Scan Tool Is Used) - Mitsubishi 1989-1993 GALANT Service Manual

C H E C K I N G T H E C O N T R O L S Y S T E M (WHEN A SCAN TOOL IS USED) FOR 1989 AND 1990
MODEL
Pulse generator B
Service data
l
l
Pulse generator A
Service data
l
l
Throttle positron sensor Accelerator is fully closed.
Slowly press In the accelerator pedal.
Accelerator is fully opened.
When engtne is cold (before starting)
After engine is warmed up
) Servrce data
,
,
,
Shift to L range
Turn on the overdrive switch.
.
.
Turn off the overdrive switch.
Select the power pattern.
.
(Including E pattern control at the low oil tem-
.
Item No. 36
Select the economy pattern.
A
Service data
Item No.37
AUTOMATIC TRANSAXLE
Inspection condition
Revision
TSB
Possible cause (or remedy)
for the abnormalrty
Criterion value
0 rpm
l
*Defective shield cable of pulse gene-
rator B
External noise invasion
l
0 rpm Defective pulse generator A or harness
l
l Defective shield cable of pulse gene-
rator A
External noise Invasion
l
0 rpm
If voltage is high at the full opening or
l
closing, TPS is adjusted improperly.
opening degree
circuit harness is defective.
accelerator cable is defective.
Equivalent to
atmospheric
temperature
It gradually rises.
ON
ON l Kickdown servo switch or circuit har-
OFF
Defective kick-down servo
l
al position switch or circuit
harness is defective.
OD
defective.
OD-OFF
Power
*Power/economy switch or circuit har-
Economy
l Harness of circuit which detects the air
ON
conditioning power relay ON signal is
OFF
defective.
adjusted improper-
IS