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FI SYSTEM DIAGNOSIS 4-31
* : Immobilizer system is equipped model only.
DTC No.
DETECTED
ITEM
DETECTED FAILURE CONDITION CHECK FOR
C29
STP sensor The sensor should produce following
voltage.
0.15 V sensor voltage < 4.85 V
In other than the above range, C29
(P1654) is indicated.
STP sensor, lead wire/coupler
connection
P1654
H
Sensor voltage is higher than specified
value.
STP sensor circuit shorted to
VCC or ground circuit open
L
Sensor voltage is lower than specified
value.
STP sensor circuit open or
shorted to ground or VCC circuit
open
C31
Gear posi-
tion signal
Gear position signal voltage should be
higher than the following for 3 seconds
and more.
Gear position sensor voltage > 0.6 V
If lower than the above value, C31
(P0705) is indicated.
GP switch, wiring/coupler con-
nection, gearshift cam, etc.
P0705
C32/C33
C34/C35
Primary fuel
injector
CKP sensor (pickup coil) signal is pro-
duced, but fuel injector signal is inter-
rupted 4 times or more continuously. In
this case, the code C32 (P0201), C33
(P0202), C34 (P0203) or C35 (P0204)
is indicated.
Primary fuel injector, wiring/cou-
pler connection, power supply to
the injector
P0201/P0202
P0203/P0204
C36/C37
C38/C39
Secondary
fuel injector
Some failure exists in the fuel injector
signal in a high load, high revolution
condition.In this case, the code C36
(P1764), C37 (P1765), C38 (P1766) or
C39 (P1767) is indicated.
Secondary fuel injector, wir-
ing/coupler connection, power
supply to the injector
P1764/P1765
P1766/P1767
C41
Fuel pump
relay
No voltage is applied to the fuel pump,
although fuel pump relay is turned ON,
or voltage is applied to fuel pump
although fuel pump relay is turned
OFF.
Fuel pump relay, lead wire/cou-
pler connection, power source to
fuel pump relay and fuel injec-
tors
P0230
H
Voltage is applied to fuel pump
although fuel pump relay is turned
OFF.
Fuel pump relay switch circuit
shorted to power source
Fuel pump relay (switch side)
L
No voltage is applied to the fuel pump,
although fuel pump relay is turned ON.
Fuel pump relay circuit open or
short
Fuel pump relay (coil side).
C42 Ignition
switch
Ignition switch signal is not input to the
ECM.
* When the I.D. agreement is not verified.
* ECM does not receive communication
signal from the immobilizer antenna.
Ignition switch, lead wire/coupler,
etc.
* Immobilizer/anti-theft system
P1650