Toyota Land Cruiser 1988 Repair Manual page 156

EFI SYSTEM - Diagnosis System
Fl-25
DIAGNOSTIC CODES (Cont'd)
Code
Number of
See
Check engine System Diagnosis Trouble area
No.
blinks
page
Open circuit in VC signal or
• Air flow meter circuit
31
__j1JlJ1_JL__
Air flow short circuit between VS and
• Air flow meter
Fl-35
Meter Signal E2 when idle contacts are
closed.
•
ECU
F11612
_llf1JlJlJl_
Air Flow
Open circuit in E2 or short
• Air flow meter circuit
32
Meter Signal
circuit between VC and VS.
• Air flow meter
Fl-35
•
ECU
F11613
35
__IUlll_fl!lJlJ
HAC Sensor
Open circuit in altitude
ECU
Signal compensation sensor signal.
•
-
Fl2699
Throttle
• Throttle position sensor
41
___I1M1lfl_
Position
Open or short circuit in circuit
Fl-33
throttle position sensor signal.
• Throttle position sensor
Sensor Signal
•
ECU
F11614
No "SPD" signal for 8
seconds when engine speed
• Vehicle speed sensor
42
___mum_nn_
Vehicle Speed in between 2,000 rpm and
circuit
-
Sensor Signal 5,000 rpm and coolant temp.
• Vehicle speed sensor
is below
ao·c
(1 76"F) except
•
ECU
Fl1615
when racing the engine.
____lll1l1fLJ1J
No "STA" signal to ECU until • Ignition switch circuit
43
Starter Signal engine speed reaches 800 • Ignition switch
Fl-39
rpm with vehicle not moving
•
ECU
Fl1616
•
EGR valve
•
EGR hose
EGR gas temp. below
•
EG R gas temp. sensor
.
J1JlJ1IlJliULJL
RGR System circuit
Fl-45
71
Malfunction
predetermined level during EGR
•
EGR gas temp. sensor
operation.
• VSV for EGR
• VSV for EGR circuit
Fl2622
•
ECU
•
A/ C switch circuit
•
A/C switch
• A/ C amplifire
No "IDL" signal, "NSW" signal
• Throttle position sensor
JliU1flJUL_
or "A/C" signal to ECU, with
circuit
51 Switch Signal
the check terminals E1 and TE1
•
Throttle position sensor
-
shorted.
•
Neutral start switch
• Neutral start switch
• Acceleration pedal and
cable
Fl1617
•
ECU
• California vehicles only