Service manual

7-9
FI
FUEL INJECTION SYSTEM
Fault code table
Fault
code No.
Symptom Probable cause of malfunction Diagnostic code No.
11
No normal signals are
received from the cylinder
identification sensor.
• Open or short circuit in wire harness.
• Defective cylinder identification sensor.
• Malfunction in ECU.
• Improperly installed cylinder identification sensor.
—
12
No normal signals are
received from the crankshaft
position sensor.
• Open or short circuit in wire harness.
• Defective crankshaft position sensor.
• Malfunction in A.C. magneto rotor.
• Malfunction in ECU.
• Improperly installed crankshaft position sensor.
—
13
Cylinder-#1 intake air pres-
sure sensor: open or short
circuit detected.
• Open or short circuit in wire harness.
• Defective cylinder-#1 intake air pressure sensor.
• Malfunction in ECU.
03
14
Cylinder-#1 intake air pres-
sure sensor: hose system
malfunction (clogged or
detached hose).
• Cylinder-#1 intake air pressure sensor hose is detached,
clogged, kinked, or pinched.
• Malfunction in ECU.
03
15
Throttle position sensor: open
or short circuit detected.
• Open or short circuit in wire harness.
• Defective throttle position sensor.
• Malfunction in ECU.
• Improperly installed throttle position sensor.
01
16
Stuck throttle position sensor
detected.
• Stuck throttle position sensor.
• Malfunction in ECU.
01
21
Coolant temperature sensor:
open or short circuit detected.
• Open or short circuit in sub-wire harness 2.
• Open or short circuit in wire harness.
• Defective coolant temperature sensor.
• Malfunction in ECU.
06
22
Intake air temperature sen-
sor: open or short circuit
detected.
• Open or short circuit in wire harness.
• Defective intake air temperature sensor.
• Malfunction in ECU.
05
25
Cylinder-#2 intake air pres-
sure sensor: open or short
circuit detected.
• Open or short circuit in wire harness.
• Defective cylinder-#2 intake air pressure sensor.
• Malfunction in ECU.
04
26
Cylinder-#2 intake air pres-
sure sensor: hose system
malfunction (clogged or
detached hose).
• Cylinder-#2 intake air pressure sensor hose is detached,
clogged, kinked, or pinched.
• Malfunction in ECU.
04
30
Engine stops when an oil
pressure drop is detected.
• Oil pressure dropped. —
33
Open circuit detected in the
primary lead of the cylinder-
#1 ignition coil.
• Open or short circuit in sub-wire harness 1.
• Open or short circuit in wire harness.
• Malfunction in cylinder-#1 ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-off circuit system.
30
34
Open circuit detected in the
primary lead of the cylinder-
#2 ignition coil.
• Open or short circuit in sub-wire harness 1.
• Open or short circuit in wire harness.
• Malfunction in cylinder-#2 ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-off circuit system.
31
42
No normal signals are
received from the speed sen-
sor.
• Open or short circuit in wire harness.
• Defective speed sensor.
• Malfunction in ECU.
07
43
ECU is unable to monitor the
battery voltage (an open or
short circuit in the line to the
ECU).
• Open or short circuit in wire harness.
• Malfunction in ECU.
09
44
Error is detected while read-
ing or writing on EEPROM
(CO adjustment value).
• Malfunction in ECU. (The CO adjustment value is not properly
written on or read from the internal memory.)
60