Combination Meter Self-Diagnosis
PERFORMING SELF-DIAGNOSIS MODE
1. Turn the ignition switch to the“LOCK”position.
2. Press both reset buttons on the combination meter and keep
them depressed.
3. Turn the ignition switch to the“ON”position, while keeping
the reset buttons pressed.
4. Release both reset buttons then self-diagnosis will start. The
sequence (A to L) is activated by press the either reset but-
tons.
NOTE:
If either reset button is not pressed for 20 seconds at each step
or if the ignition switch is turned OFF, the self-diagnosis mode is
exited.
Check items Display Remarks
A) Odometer segment test All odo trip meter segments are ON.
B) Work instruction code
SEL435X
This information is not used for service. Please skip this
step.
C) Software code
NEL735
This information is not used for service. Please skip this
step.
D) EEPROM code
NEL736
This information is not used for service. Please skip this
step.
E) Hardware code
NEL737
This information is not used for service. Please skip this
step.
F) PCB code
NEL738
This information is not used for service. Please skip this
step.
G)Meter/gauge test
(Sweeping movement)
SEL440X
Tachometer, speedometer, fuel level gauge and water
temperature gauge have sweeping movement test.
(The meter/gauges operate MIN.,MAX., MAX.,MIN.
for 2 times)
The odo trip meter segment flashes during the sweep
movement.
METER AND GAUGES
EL-152 
Bit Detectable items Description of the failureDisplayed figure on the
bit
Failure No failure
2Fuel level input sig-
nalShort circuit
When short circuit of the signal line is detected for 5 sec-
onds 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 sec-
onds or more, it should be judged as open-circuit failure.2
3Water temperature
input signalShort circuit
When short circuit of the signal line is detected for 5 sec-
onds 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 sec-
onds or more, it should be judged as open-circuit failure.2
4Outside air tem-
perature input sig-
nalShort circuit
When short circuit of the signal line is detected for 5 sec-
onds 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 sec-
onds or more, it should be judged as open-circuit failure.2
5Reset buttons Short circuit for reset buttons
When the short circuit is con-
tinuously detected for 5 min-
utes 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——00
7CPU EEPROM failure 1
0
CPU RAM failure 2
METER AND GAUGES
Combination Meter Self-Diagnosis (Cont’d)
EL-154