Toyota Supra 1990 Manual page 200

FI-26 EFI SYSTEM - Diagnosis System
DIAGNOSTIC CODES
COdE!
Number of
See
No.
"CHECK" engine
System
Diagnosis Trouble area
blinks
page
-
JlJlJ1JlJL
Normal
This appears when none of the
-
-
FI1604
other codes are identified.
•
Distributor (cam position
No "NE" of "G" signal to
sensor) circuit
•
Distributor (cam position
12
~
RPM Signal ECU within 2 seconds after
sensor)
IG-3
engine has been cranked.
•
Starter signal circuit
FI1606
•
ECU
•
Distributor (cam position
No "NE" signal to ECU sensor) circuit
13
~
RPM Signal when engine speed is above
•
Distributor (cam position
-
1,000 rpm.
sensor)
FI1607
•
ECU
NO "IGF" signal to ECU
•
Ignition and ignition coil
14
~
Ignition Signal
"A" times in succession.
circuit
"A" 7M-GE
-
6-8
•
Igniter and ignition coil
FI1608
7M-GTE 3
•
ECU
During air-fuel ratio feedback
correction, voltage output
Oxygen from the oxygen sensor does
•
Oxygen sensor circuit
Sensor not exceed a set value on the
•
Oxygen sensor -
-~
Signal lean side and the rich side
•
ECU
21
continuously for a certain
period.
*1
•
Oxygen sensor heater
Oxygen Open or short circuit in oxy-
circuit
Sensor gen sensor heater signal
-
•
Oxygen sensor heater
Heater Signal
(HT).
•
ECU
FI1609
•
Water temp. sensor
~
Water Temp.
Open or short circuit in
circuit
22
water temp. sensor signal -
Sensor Signal
•
Water temp. sensor
(THW).
FI1610
•
ECU
•
Intake air temp. sensor
Intake Air Open or short circuit in
24
~
Temp. Sensor
intake air temp. sensor
circuit FIAO,
•
Intake air temp. sensor
60
Signal signal (THA).
•
ECU
FI1611