MPI <4G1> -
Troubleshooting
13A-15
OK
Check the trouble symptoms.
NG
Replace the engine-ECU.
OK
Check the harness wire between the
engine coolant temperature sensor
and the engine-ECU, and repair if
necessary.
OK
Check the following connector:
B-34
NG
Repair
OK
Measure at engine coolant
temperature sensor connector A-72.
D
Use test harness (MB991658) to
connect the connector, and
measure at the pick-up harness.
D
Ignition switch: ON
D
Voltage between terminal 1 and
earth
OK:
At 0
_
C of engine coolant
temperature: 3.2 - 3.8 V
At 20
_
C of engine coolant
temperature: 2.3 - 2.9 V
At 40
_
C of engine coolant
temperature: 1.3 - 1.9 V
At 80
_
C of engine coolant
temperature: 0.3 - 0.9 V
NG
Check the engine coolant
temperature sensor.
(Refer to P.13A-83*.)
NG
Repair
From the previous page
NOTE:
*: Refer to the ’96 COLT/LANCER Workshop Manual (Pub. No. PWME9511).
