Bit
Detectable items
Description of the failure
Displayed figure on the
bit
Failure
No failure
2
Fuel level input signal
Short circuit
When short circuit of the signal line is detected for 5 seconds
or more, it should be judged as short-circuit failure.
1
0
Open circuit
When open circuit of the signal line is detected for 5 seconds
or more, it should be judged as open-circuit failure.
2
3
Water temperature input
signal
Short circuit
When short circuit of the signal line is detected for 5 seconds
or more, it should be judged as short-circuit failure.
1
0
Open circuit
When open circuit of the signal line is detected for 5 seconds
or more, it should be judged as open-circuit failure.
2
4
Outside air temperature
input signal
Short circuit
When short circuit of the signal line is detected for 5 seconds
or more, it should be judged as short-circuit failure.
1
0
Open circuit
When open circuit of the signal line is detected for 5 seconds
or more, it should be judged as open-circuit failure.
2
5
Reset buttons
Short circuit for reset buttons
When the short circuit is continu-
ously detected for 5 minutes or
more, it should be judged as
short-circuit failure.
Right side reset button has
failed.
1
0
Left side reset button has
failed.
2
Both reset buttons have
failed.
3
6
—
—
0
0
7
CPU
EEPROM failure
1
0
CPU RAM failure
2
METERS AND GAUGES
Combination Meter Self-Diagnosis (Cont’d)
EL-143