Mitsubishi FUEL Manual page 212

13I-18
From the previous page
OK
Measure at air flow sensor connector
B-12.
D Use the test harness (MB991709)
to connect only terminals 5 and
6, and then measure at the
pick-up harness.
D Ignition switch: ON
D Voltage between terminal 6 and
earth
OK: Ambient temperature 0_C:
3.2 - 3.8 V
Ambient temperature 20_C:
2.3 - 2.9 V
Ambient temperature 40_C:
1.5 - 2.1 V
Ambient temperature 80_C:
0.4 - 1.0 V
OK
Check the trouble symptoms.
NOTE:
*: Refer to the '99 GALANT Workshop Manual (Pub. No. PWDE9611-A)
Code No. P0115 Engine coolant temperature sensor
system
Range of Check
D Engine: Two seconds after the engine has been started
Set Conditions
D The sensor output voltage is 4.6 V or more for four seconds (equivalent to
- 45_C of engine coolant temperature)
or
D The sensor output voltage is 0.1 V or less for four seconds (equivalent to
140_C of engine coolant temperature)
Range of Check
D Engine: After starting
Set Conditions
D The engine coolant temperature has reduced from over 40_C to less than
40_C, and that condition has lasted for five minutes or more.
GDI -
Troubleshooting
NG
Check the following connectors:
(C-163, C-164) <M/T>, (C-175,
C-176) <A/T>
Check the harness between the air
flow sensor and the engine-ECU
<M/T> or engine-A/T-ECU <A/T>,
and repair if necessary.
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
NG
OK
Probable cause
D Malfunction of engine coolant temperature sensor
D Open or short circuit in the engine coolant
temperature sensor circuit or loose connector
contact
D Malfunction of engine-ECU <M/T>
D Malfunction of engine-A/T-ECU <A/T>
Repair