--
DIAGNOSTICS
ECD SYSTEM (1ND--TV)
05--45
COROLLA Supplement (RM1129E)
DTC No.
(See Page)
Memory
MIL*
Trouble Area
Detection Item
Sensor Reference Voltage ”B”
Circuit Low
S
Accelerator pedal position sensor
S
Open or short in accelerator pedal position sensor circuit
S
ECM
f
f
Sensor Reference Voltage ”B”
Circuit High
S
Accelerator pedal position sensor
S
Open or short in accelerator pedal position sensor circuit
S
ECM
f
f
ECM/PCM Power Relay Control
Circuit / Open
S
Open in EFI MAIN relay circuit
S
EFI MAIN relay
S
ECM
f
Sensor Reference Voltage ”C”
Circuit Low
S
Open or short in fuel pressure sensor circuit
S
Fuel pressure sensor
S
Open or short in manifold absolute pressure sensor circuit
S
Manifold absolute pressure sensor
S
ECM
f
f
Sensor Reference Voltage ”C”
Circuit High
S
Open or short in fuel pressure sensor circuit
S
Fuel pressure sensor
S
Open or short in manifold absolute pressure sensor circuit
S
Manifold absolute pressure sensor
S
ECM
f
f
Clutch Switch Input Circuit Mal-
function
S
Open or short in clutch switch circuit
S
Clutch switch circuit
S
ECM
f
f
Accelerator Pedal Position Sen-
sor Circuit Malfunction
S
Open or short in accelerator pedal position sensor circuit
S
Accelerator pedal position sensor
S
ECM
f
f
Accelerator Pedal Position Sen-
sor Range/Performance Problem
S
Accelerator pedal position sensor
f
f
Injection Pump Fuel Metering
Control ”A” Range/Performance
(Cam/Rotor/Injector)
S
Open or short in fuel metering unit circuit
S
Fuel metering unit
S
ECM
f
f
Fuel Pump System
S
Supply pump (fuel metering unit)
S
Short in supply pump (fuel metering unit) circuit
S
Open in pressure regulator valve circuit
S
Pressure regulator valve
S
Fuel filter element is clogged
S
Fuel leak
S
Injector
S
Lack of fuel
S
ECM
f
f
Fuel Regulator Circuit Malfunc-
tion (EDU Drive)
S
Open or short in pressure control valve circuit
S
Open or short in pressure control valve
S
ECM
f
f
Fuel Pressure Regulator System
Malfunction
S
Supply pump (fuel metering unit)
S
Short in supply pump (fuel metering unit) circuit
S
Open in pressure regulator valve circuit
S
Pressure regulator valve
S
Fuel filter element is clogged
S
Fuel leak
S
Injector
S
Lack of fuel
S
ECM
f
f
Stop Light Switch Circuit Mal-
function
S
Short in stop lamp switch signal circuit
S
Stop lamp switch
S
ECM
f
f
To Alphabetical Index
To Sub Index
TOYOTA COROLLA REPAIR MANUAL SUPP 1129E