How To Fix Ecm In Toyota Rav4 2012

Tester Display

Test Part

Control Range

Diagnostic Note

INJ VOL

Change injection volume

-12.5 to 24.8%

• All injectors tested at same time

• Perform test at less than 3,000 rpm

• Injection volume can be changed in 0.2% graduations within control range

Tester Display

Test Part

Control Range

Diagnostic Note

A/F CONTROL

Change injection volume

Decrease by 12.5% or increase by 24.8%

• Perform test at less than 3,000 rpm

• A/F CONTROL enables checking and graphing of A/F (Air-Fuel Ratio) sensor and Heated Oxygen (HO2) sensor voltage outputs

• To conduct test, select following menu items: ACTIVE TEST / A/F CONTROL / USER DATA / AFS B1S1 and O2S B1S2; then press YES and ENTER followed by F4.

FUEL PMP SP CTL

Fuel pump speed control

ON (low speed) / OFF (high speed)

Test possible when following conditions met:

• Ignition switch ON

• Engine is stopped

INTAKE CTL VSV1

Activate the VSV for Acoustic Control Induction System (ACIS)

ON/OFF

-

EVAP VSV (ALONE)

Activate purge VSV control

ON/OFF

-

VVT CTRL B1

Turn on and off OCV (Oil Control Valve) for VVT (Bank 1)

ON/OFF

• Engine stalls or idles roughly when OCV turned ON

• Normal engine running or idling when OCV OFF

• Test possible while vehicle stopped and engine idling

VVT CTRL B2

Turn on and off OCV (Oil Control Valve) for VVT (Bank 2)

ON/OFF

• Engine stalls or idles roughly when OCV turned ON

• Normal engine running or idling when OCV OFF

• Test possible while vehicle stopped and engine idling

FUEL PUMP/SPD

Activate fuel pump (C/OPN Relay)

ON/OFF

Test possible when engine stopped

TC/TE1

Turn on and off TC and TE1 connection

ON/OFF

• OFF: TC and TE1 disconnected

FCIDLPROHBT

Prohibit idling fuel cut control

ON/OFF

-

COOLING FAN

Control electric cooling fan

ON/OFF

-

ETCS OPEN SLOW

Control the ETCS (throttle actuator)

ON: Throttle valve opens slowly

Test possible when following conditions met:

• Engine stopped

• Fully depressing accelerator pedal (APP: 59° or more)

ETCS CLOSE SLOW

Control the ETCS (throttle actuator)

ON: Throttle valve closes slowly

ETCS OPEN FAST

Control the ETCS (throttle actuator)

ON: Throttle valve opens fast

ETCS CLOSE FAST

Control the ETCS (throttle actuator)

ON: Throttle valve closes fast

VVT B1

Control the VVT (bank 1 Intake Side)

This valve added to present OCV control duty

100%: Maximum advance -100% : Maximum retard

-

VVT B2

Control the VVT (bank 2 Intake Side)

This valve added to present OCV control duty

100%: Maximum advance -100% : Maximum retard

-

VVT EX B1

Control the VVT (bank 1 Exhaust Side)

This valve added to present OCV control duty 100%: Maximum retard -100%: Maximum advance

-

ES

Tester Display

Test Part

Control Range

Diagnostic Note

VVT EX B2

Control the VVT (bank 2 Exhaust Side)

This valve added to present OCV control duty 100%: Maximum retard -100%: Maximum advance

-

VACUUM PUMP

Activate the leak detection pump

ON/OFF

-

VENT VALVE

Activate the vent valve

ON/OFF

-

AICV VSV

Activate the VSV for Air Intake Control System (AICS)

ON/OFF

-

ALT VOL

Request output voltage of generator regulator during forced activation

12.5 to 14.8 V

Engine running

FUEL CUT #1

Cylinder #1 injector fuel cut

ON/OFF

Test possible during vehicle stopping and engine idling ON: Injector fuel cut and ignition stop

FUEL CUT#2

Cylinder #2 injector fuel cut

ON/OFF

FUEL CUT#3

Cylinder #3 injector fuel cut

ON/OFF

FUEL CUT#4

Cylinder #4 injector fuel cut

ON/OFF

FUEL CUT#5

Cylinder #5 injector fuel cut

ON/OFF

FUEL CUT#6

Cylinder #6 injector fuel cut

ON/OFF

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