I
FI-24
EFI SYSTEM —
Diagnosis System
DIAGNOSTIC CODES
Code
No.
Number of
Check engine
blinks
System
Diagnosis
Trouble area
See
page
—
——
Ti
— — —
—
Normal
This appears when none of
the other codes are identified.
— —
F11604
•
Ignition switch circuit'
•
Ignition switch
11
ECU (+B)
Momentary interruption in
power supply to ECU.
•
Main relay circuit
•
Main relay
F1-30
FI1605
•
ECU
No "NE" or "G" signal to
•
Distributor circuit
12
PRM Signal
ECU within 2 seconds after
engine has been cranked.
•
Distributor
•
Starter signal circuit
IG-4
F11606
•
ECU
No "NE" signal to ECU
•
Distributor circuit
13
RPM Signal
when engine speed is
above 1,000 rpm.
•
Distributor
•
ECU
-
FI1 607
14
11M
n
Ig
Ignitio
Signal
No "IGF" signal to ECU
- 8 times in succession.
•
Igniter and ignition coil
circuit
circu
•
Igniter and ignition coil
FI-41
Fll 608
•
ECU
Oxygen
Sensor
Signal
Detects deterioration of
oxygen sensor.
•
Oxygen sensor circuit
•
Oxygen sensor
•
ECU
FI-44
Oxyge n
n
Sensor
Se
Heater Sign
Signal
Open or short circuit in
oxygen sensor heater signal.
•
Oxygen sensor heater
circuit
•
Oxygen sensor heater
21
FI1609
•
ECU
22
Water Temp.
Sensor Signal
Open or short circuit in water
temp. sensor signal.
•
Water temp. sensor
circuit
•
Water temp. sensor
F1-37
•
ECU
F11610
Intake Air
•
Intake air temp. sensor
24
-
in-
Temp. Sensor
Signal
Open or short circuit in intake
air temp. sensor signal.
circuit
•
Intake air temp. sensor
•
ECU
F1 - 36
FI1611
-
Air-fuel
(1) When air-fuel ratio feed-
back compensation value
or adaptive control value
continues at the upper
•
Injector circuit
•
Injector
•
Fuel line pressure
•
Air flow meter
25
II
Ratio Lean
(lean) or lower (rich)
li
mit.
•
Air intake system
FI2562
Malfunction
(2) When air-fuel ratio feed-
back compensation value
or adaptive control value
feedback frequency is
abnormally high during
feedback condition.
•
Oxygen sensor circuits
•
Oxygen sensors
•
Ignition system
•
ECU
•
Injector circuit
26
MThI
- U
Air-fuel
Ratio Rich
Malfunction
HINT: For condition (2),
neither a lean (Code No. 25)
nor a rich (Code No. 26)
diagnosis is displayed
consecutively.
•
Injector
•
Co
uFuel line pressure
•
flow
start injector
•
Cold
meter
•
ECU
—
- —
FI2563
No. 2 Oxygen
Sensor Signal
28
Same as code No. 21
Same as code No. 21
FI-44
No. 2 Oxygen
FI2698
Sensor Heater
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