Toyota 3S-GE Repair Manual page 196

E6462 ENGINE — EFI SYSTEM
DIAGNOSTIC CODES
HINT:
EDllI—lII
0 If a malfunction is detected during the diagnostic code check, refer to the circuit indicated in the table,
and turn to the corresponding page.
0 Your readings may vary from the parameters listed in the table, depending on the instruments used.
Code
No.
Number of
blinks of
Check Engine
Warning
Light
System
Check Engine
'1
Warning Light Diagnosis
Normal Test
Mode Mode
Trouble Area
*2
Memory
See page
_.
_ H1401
Normal No trouble code is recorded.
12
-
F|1606
RPM
Signal
ON N.A
0 No G1, G2 or NE signal is input to the
ECU for 2 secs. or more after STA turns
ON.
0 Open in G and NE — circuits
Open or short in NE, G circuit
Distributor
Open or short in STA circuit
ECU
O
IG-5
EG-200
13
__lLlIllll_
Fl1607
RPM
Signal
ON ON
NE signal is not input to ECU for 0.05 sec.
or more when engine speed is 1,500 rpm
or more.
Open or short in NE circuit
Distributor
ECU
O IG-5
14
_Jl_lllllllL
FI1608
Ignition
Signal
ON N.A
IG signal from igniter is not input to ECU
for 8 consecutive ignition.
Open or short in IGF or IGT
circuit from igniter to ECU
Igniter
ECU
O
EG-201
21
_l'lllJl__
F|'l609
Oxygen
Sensor
Signal
ON
N.A
Open or short in heater circuit of oxygen
sensor for 0.5 sec. or more. (HT)
Open or short in heater
circuit of oxygen sensor
Oxygen sensor heater
ECU
ON
At normal driving speed (below 100 km/h
(60 mph) and engine speed is above 1,500
rpm), amplitude of oxygen sensor signal
(OX1) is reduced to between 0.35 — 0.70 V
continuously for 60 secs. or more.
'3 (2 trip detection logic)
Open or short in oxygen
sensor circuit
Oxygen sensor
Open or short in vacuum
sensor circuit
Vacuum sensor
ECU
O
EG-204
EG-286
22
__lllUIlL_
Fl1610
Water
Temp.
Sensor
Signal
ON ON
Open or short in water temp. sensor circuit
for 0.5 sec. or more. (THW)
Open or short in water temp.
sensor circuit
Water temp. sensor
ECU
O EG—199
24
QIIUIJIIIIL
Fl161'l
lntake
Air
Temp.
Sensor
Signal
ON ON
Open or short in intake air temp. sensor
circuit for 0.5 sec. or more. (THA)
Open or short in intake air
temp- circuit
lntake airtemp. sensor
ECU
O
EG-198
25
_JlIUllU1ilJL
Fl2562
Air-Fuel
Radio
Lean
Mal-
function
ON ON
Oxygen sensor output in less than 0.45 V
for at least 90 secs. when oxygen sensor is
warmed up (racing at 1,500 rpm).
"3 (2 trip detection logic)
Engine ground bolt loose
Open in E1 circuit
Open in injector circuit
Fuel line pressure
(Injector blockage. etc.)
Open or short in oxygen
sensor circuit.
Oxygen sensor
Ignition system
Water temp. sensor
ECU
O
EG~204
EG-286
31
_l'Lllll_ll__
H1612
Vacuum
Sensor
Signal
ON ON
Open or short detected continuously for
500 msec. or more in vacuum sensor
sensor circuit. (PIM)
Open or short in vacuum
sensor circuit
Vacuum sensor
ECU
O
EG—196
V0541!)