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Terminal side
Wire side
Oscilloscope setting
Component/circuit ECM
Signal Condition Typical value (Suggested settings - Wave form
description pin
Voltage/time per division)
AC control module A6 Ignition ON - AC ON 9-10 V
AC control module A10 Ignition ON - AC ON 2 V max.
Auxiliary air valve -
C23 Ignition ON 9-14 V
AC/Carina/Corolla
Auxiliary air valve C23 Engine idling - AC ON 0V
Battery A2 Ignition OFF 10-14 V
Connected pin - no test
Brake pedal position (BPP)
A1 data available or random
switch - Avensis
digital signal
Camshaft position (CMP) C5
Engine idling 2 V/20 ms
sensor (C18)
Camshaft position (CMP) C18
Engine idling 2 V/20 ms
sensor (C5)
Manufacturer: Toyota Model: Carina E 1,6 © Autodata Limited 2007
Engine code: 4A-FE Output: 79 (107) 6000 03/06/2016
Closed throttle position (CTP) Ignition ON - throttle
B12 0V
switch - Carina/Corolla closed
Closed throttle position (CTP) Ignition ON - throttle
B12 9-14 V
switch slightly open
Connected pin - no test
Data link connector (DLC) B7 data available or random
digital signal
Connected pin - no test
Data link connector (DLC) B8 data available or random
digital signal
Connected pin - no test
Data link connector (DLC) B15 data available or random
digital signal
Connected pin - no test
Data link connector (DLC) -
B16 data available or random
Avensis
digital signal
Earth C13 Ignition ON 0V
Earth C24 Ignition ON 0V
Earth C26 Ignition ON 0V
Engine control relay A1 Ignition OFF 0V
Engine control relay A1 Ignition ON 10-14 V
Engine control relay A7 Ignition OFF 0V
Engine control relay A7 Ignition ON 10-14 V
Engine coolant temperature Ignition ON - coolant
B4 3,5 V
(ECT) sensor temp. 20°C
Engine coolant temperature Ignition ON - coolant
B4 0,2-1 V
(ECT) sensor temp. 80°C
Engine coolant temperature
B9 Ignition ON 0V
(ECT) sensor
Engine coolant temperature
B16 Ignition ON 0V
(ECT) sensor - Corolla/Carina-E
Connected pin - no test
Engine coolant temperature
C9 data available or random
gauge sensor - Avensis
digital signal
C4
Engine speed (RPM) sensor Engine idling 2 V/5 ms
(C17)
C17
Engine speed (RPM) sensor Engine idling 2 V/5 ms
(C4)
Fuel pump relay A4 Ignition ON 10-14 V
Fuel pump relay A4 Engine idling 0V
Engine idling - engine
Heated oxygen sensor (HO2S) B6 0,2-0,8 V fluctuating 0,2 V/1 sec.
hot
Heated oxygen sensor (HO2S) C14 Ignition ON 0V
Connected pin - no test
Heated rear window fuse -
A5 data available or random
Avensis
digital signal
Ignition ON - ECM
Idle air control (IAC) valve C9 9-14 V
disconnected
Idle air control (IAC) valve C9 Engine idling 5 V/5 ms
Ignition ON - ECM
Idle air control (IAC) valve C10 9-14 V
disconnected
Idle air control (IAC) valve C10 Engine idling 5 V/5 ms
Ignition amplifier C3 Engine idling 1 V/10 ms
Ignition amplifier C22 Engine idling 1 V/10 ms
Manufacturer: Toyota Model: Carina E 1,6 © Autodata Limited 2007
Engine code: 4A-FE Output: 79 (107) 6000 03/06/2016
Ignition switch - start signal C2 Engine cranking 6-14 V
Injectors 1 & 3 C12 Ignition OFF 0V
Injectors 1 & 3 C12 Ignition ON 9-14 V
Injectors 1 & 3 C12 Engine idling 10 V/2 ms
Injectors 2 & 4 C25 Ignition OFF 0V
Injectors 2 & 4 C25 Ignition ON 9-14 V
Injectors 2 & 4 C25 Engine idling 10 V/2 ms
Intake air temperature (IAT) Ignition ON - air temp.
B3 3,4 V
sensor 20°C
Intake air temperature (IAT)
B9 Ignition ON 0V
sensor
Intake air temperature (IAT)
B16 Ignition ON 0V
sensor - Corolla/Carina-E
Engine idling -
Knock sensor (KS) B14 50 mV/1 ms
accelerate briefly
Malfunction indicator lamp (MIL) A8 Ignition ON - MIL ON 0-1 V
Engine running - MIL
Malfunction indicator lamp (MIL) A8 10-14 V
OFF
Manifold absolute pressure
B2 Ignition ON 3,3-3,9 V
(MAP) sensor
Manifold absolute pressure
B9 Ignition ON 0V
(MAP) sensor
Manifold absolute pressure
B11 Ignition ON 4,5-5,5 V
(MAP) sensor
Manifold absolute pressure
B16 Ignition ON 0V
(MAP) sensor - Corolla/Carina-E
Connected pin - no test
Octane coding plug - Carina A3 data available or random
digital signal
Connected pin - no test
Octane coding plug - Avensis B1 data available or random
digital signal
Connected pin - no test
Overdrive solenoid - Avensis C7 data available or random
digital signal
Park/neutral position (PNP) Ignition ON - AT in P
C15 0-3 V
switch - Avensis or N
Park/neutral position (PNP) Ignition ON - AT not in
C15 9-14 V
switch P or N
Rear fog lamps switch/side Ignition ON - fog lamps
A12 0V
lamps relay OFF - side lamps OFF
Rear fog lamps switch/side Ignition ON - fog lamps
A12 10-14 V
lamps relay ON - side lamps ON
Starter motor relay C15 Ignition ON 0-3 V
Throttle position (TP) sensor B9 Ignition ON 0V
Ignition ON - throttle
Throttle position (TP) sensor B10 0,3-0,8 V
closed
Ignition ON - throttle
Throttle position (TP) sensor B10 3,2-4,9 V
fully open
Throttle position (TP) sensor B11 Ignition ON 4,5-5,5 V
Throttle position (TP) sensor -
B16 Ignition ON 0V
Corolla/Carina-E
Manufacturer: Toyota Model: Carina E 1,6 © Autodata Limited 2007
Engine code: 4A-FE Output: 79 (107) 6000 03/06/2016
Connected pin - no test
Transmission mode selection
B5 data available or random
switch - Avensis
digital signal
Connected pin - no test
Transmission range (TR) switch
C6 data available or random
- Avensis
digital signal
Connected pin - no test
Transmission range (TR) switch C19 data available or random
digital signal
Connected pin - no test
Transmission range (TR) switch C20 data available or random
digital signal
Connected pin - no test
Transmission shift control valve
C21 data available or random
1 - Avensis
digital signal
Connected pin - no test
Transmission shift control valve
C21 data available or random
2 - Avensis
digital signal
Ignition ON - vehicle
Vehicle speed sensor (VSS) A11 0 V or 5 V
pushed
11. Analogue, AC, frequency modulated 17. Analogue, AC, frequency modulated 21. Analogue, DC
25. Digital, DC, pulse width modulated or 32. Digital, DC, frequency modulated 35. Digital, DC, pulse width modulated
digital, DC, frequency modulated
Manufacturer: Toyota Model: Carina E 1,6 © Autodata Limited 2007
Engine code: 4A-FE Output: 79 (107) 6000 03/06/2016
38. Analogue, AC
input/output signal
input signal
output signal
ECM switched earth
ECM earth circuit
Manufacturer: Toyota Model: Carina E 1,6 © Autodata Limited 2007
Engine code: 4A-FE Output: 79 (107) 6000 03/06/2016
