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Telephone: Fax: VAT Registration No.:: Terminal Side

This document provides component descriptions, typical voltage values, and suggested oscilloscope settings for testing various engine control system components on a 1994-2000 Toyota RAV4 with a 3S-FE engine. It lists over 50 components and circuits including sensors, actuators, and connectors, along with their expected voltage readings or signal patterns under different engine operating conditions such as ignition on/off, idle, and higher RPM. This detailed reference guide allows technicians to efficiently test the electrical operation of the engine management system.

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Alexander Enciso
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127 views5 pages

Telephone: Fax: VAT Registration No.:: Terminal Side

This document provides component descriptions, typical voltage values, and suggested oscilloscope settings for testing various engine control system components on a 1994-2000 Toyota RAV4 with a 3S-FE engine. It lists over 50 components and circuits including sensors, actuators, and connectors, along with their expected voltage readings or signal patterns under different engine operating conditions such as ignition on/off, idle, and higher RPM. This detailed reference guide allows technicians to efficiently test the electrical operation of the engine management system.

Uploaded by

Alexander Enciso
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Telephone:

Fax:
VAT Registration No.:

Terminalside

Wireside

Component/circuit ECM Oscilloscopesetting(Suggested


Signal Condition Typicalvalue Waveform
description pin settings-Voltage/timeperdivision)
Ignition ON - AC
AC control module C6 9-10 V
ON
Connected pin - no test data
AC control module C10 available or random digital
signal

Auxiliary air valve - AC A1 Ignition ON 9-14 V

Engine idling - AC
Auxiliary air valve - AC A1 0V
ON

Battery C2 Ignition OFF 10-14 V

Camshaft position (CMP) A5


Engine idling 2 V/50 ms
sensor (A18)
Camshaft position (CMP) A18
Engine idling 2 V/50 ms
sensor (A5)
Closed throttle position Ignition ON - throttle
B12 0V
(CTP) switch closed
Closed throttle position Ignition ON - throttle
B12 11-14 V
(CTP) switch slightly open

Manufacturer: Toyota Model: RAV4 (94-00) 2,0 (c) Autodata Limited 2013
Engine code: 3S-FE Output: 95 (129) 5600 . 9/5/2017
Tuned for: R-Cat Year: 1994-00 V9.200-
Connected pin - no test data
Data link connector (DLC) B7 available or random digital
signal
Connected pin - no test data
Data link connector (DLC) B8 available or random digital
signal
Connected pin - no test data
Data link connector (DLC) B15 available or random digital
signal
Connected pin - no test data
Data link connector (DLC) A24 available or random digital
signal
Earth A13 Ignition ON 0V
Earth A26 Ignition ON 0V
Ignition ON -
Electrical load sensor C12 0V
electrical loads OFF
Ignition ON -
Electrical load sensor C12 10-14 V
electrical loads ON

Engine control relay C7 Ignition OFF 0V

Engine control relay C7 Ignition ON 10-14 V

Engine coolant temperature Ignition ON -


B4 2,7 V
(ECT) sensor coolant temp. 10C
Engine coolant temperature Engine idling -
B4 0,3 V
(ECT) sensor coolant temp. 80C
Engine coolant temperature
B9 Ignition ON 0V
(ECT) sensor
A4
Engine speed (RPM) sensor Engine idling 2 V/5 ms
(A17)
A17
Engine speed (RPM) sensor Engine idling 2 V/5 ms
(A4)
Exhaust gas recirculation
A23 Ignition ON 0V
(EGR) solenoid
Exhaust gas recirculation
A23 Engine idling 0V
(EGR) solenoid
Fuel pressure regulator Ignition ON - engine
A15 2,7 V
control solenoid cold
Fuel pressure regulator Engine idling -
A15 11-14 V
control solenoid engine hot

Fuel pump relay C4 Ignition ON 10-14 V

Fuel pump relay C4 Engine idling 0V

Heated oxygen sensor Engine idling -


B6 0-1 V fluctuating 0,2 V/1 sec.
(HO2S) engine hot
Heated oxygen sensor
A11 Ignition ON 11-14 V
(HO2S)
Heated oxygen sensor
A11 Engine idling 0V
(HO2S)

Idle air control (IAC) valve A9 Ignition ON 0,7 V

Idle air control (IAC) valve A9 Engine idling 60% 5 V/5 ms

Idle air control (IAC) valve A10 Ignition ON 11-14 V

Manufacturer: Toyota Model: RAV4 (94-00) 2,0 (c) Autodata Limited 2013
Engine code: 3S-FE Output: 95 (129) 5600 . 9/5/2017
Tuned for: R-Cat Year: 1994-00 V9.200-
Idle air control (IAC) valve A10 Engine idling 40% 5 V/5 ms

Ignition amplifier A22 Engine idling 30 Hz 1 V/10 ms

Ignition amplifier A22 3000 rpm 100 Hz

Ignition switch - start signal A2 Engine cranking 9V

Injectors 1 & 3 A12 Ignition ON 9-14 V

Injectors 1 & 3 A12 Engine idling 3,1 ms 10 V/2 ms

Injectors 2 & 4 A25 Ignition ON 9-14 V

Injectors 2 & 4 A25 Engine idling 3,1 ms 10 V/2 ms

Intake air temperature (IAT) Ignition ON - air


B3 3V
sensor temp. 5C
Intake air temperature (IAT)
B9 Ignition ON 0V
sensor
Engine idling -
Knock sensor (KS) B5 50 mV/1 ms
accelerate briefly
Malfunction indicator lamp Ignition ON - MIL
C8 0-1 V
(MIL) ON
Malfunction indicator lamp Engine idling - MIL
C8 10-14 V
(MIL) OFF
Manifold absolute pressure
B2 Ignition ON 3,6 V
(MAP) sensor
Manifold absolute pressure
B2 Engine idling 1,3 V
(MAP) sensor
Manifold absolute pressure
B2 3000 rpm 1,4 V
(MAP) sensor
Manifold absolute pressure
B2 Engine under load 3,6 V
(MAP) sensor
Manifold absolute pressure
B9 Ignition ON 0V
(MAP) sensor
Manifold absolute pressure
B11 Ignition ON 5V
(MAP) sensor

Throttle position (TP) sensor B9 Ignition ON 0V

Ignition ON - throttle
Throttle position (TP) sensor B10 0,5 V
closed
Ignition ON - throttle
Throttle position (TP) sensor B10 4V
fully open

Throttle position (TP) sensor B11 Ignition ON 5V

Ignition ON - vehicle
Vehicle speed sensor (VSS) C11 0 V or 5 V
pushed

Manufacturer: Toyota Model: RAV4 (94-00) 2,0 (c) Autodata Limited 2013
Engine code: 3S-FE Output: 95 (129) 5600 . 9/5/2017
Tuned for: R-Cat Year: 1994-00 V9.200-
11.Analogue,AC,frequencymodulated 17.Analogue,AC,frequencymodulated 21.Analogue,DC

25.Digital,DC,pulsewidthmodulatedordigital, 32.Digital,DC,frequencymodulated 35.Digital,DC,pulsewidthmodulated


DC,frequencymodulated

38.Analogue,AC

Manufacturer: Toyota Model: RAV4 (94-00) 2,0 (c) Autodata Limited 2013
Engine code: 3S-FE Output: 95 (129) 5600 . 9/5/2017
Tuned for: R-Cat Year: 1994-00 V9.200-
input/output signal
input signal
output signal
ECM switched earth

ECM earth circuit

Manufacturer: Toyota Model: RAV4 (94-00) 2,0 (c) Autodata Limited 2013
Engine code: 3S-FE Output: 95 (129) 5600 . 9/5/2017
Tuned for: R-Cat Year: 1994-00 V9.200-

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