Mitsubishi Eclipse 1990 Service Manual page 456

Scan tool 149
Code General scan tool
No.
42
[Comment]
Background
The fuel level sensor, which is installed in the fuel tank, informs the PCM of fuel level
(amount).
The PCM does not carry out a specific OBD-II monitor when the fuel amount is small
or large.
Range of Check
Battery positive voltage: 13
Engine is running
Set Conditions
The fuel level sensor output voltage is less than 0.1 V.
Check the fuel gauge unit and its circuit.
(Refer to GROUP 54 Combination Meters.)
Check the following
Check trouble symptom.
Scan tool 150
Code General scan tool
No.
42
[Comment]
Background
The fuel level sensor, which is installed in the fuel tank, informs the PCM of fuel level
(amount.)
The PCM does not carry out a specific OBD-II monitor when the fuel amount is small
or large.
Range of Check
Battery positive voltage: 13
Engine is running
Set Conditions
The fuel level sensor output voltage is less than 4.5 V.
Check the fuel gauge unit and its circuit.
to GROUP 54 Combination Meters.)
Check the connectors:
Check trouble symptom.
ENGINE
Fuel Level Sending Unit Volts Too
Low
15
OK
1
Fuel Level Sending Unit Volts Too
High
15
OK
A-l 06
TSB Revision
NG
Repair
Check the harness wire between the PCM and fuel level sensor
Sensor
Fuel level sensor failed
Open sensor ground circuit
NG
Repair
Check the harness wire between the PCM and fuel level sensor
connector.
the PCM.
Sensor signal line is grounded. .
Fuel level sensor failed
Loss of supply
. .
is grounded.
Repair