service indicator TOYOTA RAV4 2006 Service Repair Manual

ENGINE - 2AZ-FE ENGINE
Service Tip
To clear the DTC that is stored in the ECM, use a hand-held tester or disconnect the battery terminal
or remove the EFI fuse for 1 minute or longer.
EG-67
Fail-safe
Due to a failure in the battery current sensor or battery temperature sensor, the ECM may determine the
necessity of performing a fail-safe operation. Then, the ECM stops the charging control and the generator
switches to the normal power generation mode.
When the ECM detects a malfunction in a sensor, the ECM memorizes the DTC (Diagnostic Trouble Code).
The MIL (Malfunction Indicator Lamp) does not illuminate.
DTC Chart
DTC No.Detection ItemDTC No.Detection Item
P0516Battery Temperature Sensor
Circuit LowP1551Battery Current Sensor
Circuit Low
P0517Battery Temperature Sensor
Circuit HighP1552Battery Current Sensor
Circuit High
P0560System VoltageP1602Detection of Battery
P1550Battery Current Sensor
Circuit
12. Diagnosis
When the ECM detects a malfunction, the ECM makes a diagnosis and memorizes the failed section.
Furthermore, the MIL in the combination meter illuminates or blinks to inform the driver.
The ECM will also store the DTCs of the malfunctions. The DTCs can be accessed by the use of the
hand-held tester.
For details, refer to the 2006 RAV4 Repair Manual (Pub. No. RM01M1U).
13. Fail-safe
When a malfunction is detected at any of the sensors, there is a possibility of an engine or other malfunction
occurring if the ECM were to continue to control the engine control system in the normal way. To prevent
such a problem, the fail-safe function of the ECM either relies on the data stored in memory to allow the
engine control system to continue operating, or stops the engine if a hazard is anticipated. For details, refer
to the 2006 RAV4 Repair Manual (Pub. No. RM01M1U).

ENGINE - 2GR-FE ENGINE
Service Tip
The ECM of the ’06 RAV4 uses the CAN protocol for diagnostic communication. Therefore, a
hand-held tester and a dedicated adapter [CAN VIM (Vehicle Interface Module)] are required for
accessing diagnostic data. For details, refer to the 2006 RAV4 Repair Manual (Pub. No.
RM01M1U).
To clear the DTC that is stored in the ECM, use a hand-held tester, and disconnect the battery
terminal or remove the EFI fuse for 1 minute or longer.
EG-132
14. Diagnosis
When the ECM detects a malfunction, the ECM makes a diagnosis and memorizes the failed section.
Furthermore, the MIL (Malfunction Indicator Lamp) in the combination meter illuminates or blinks to
inform the driver.
The ECM will also store the DTCs (Diagnostic Trouble Codes) of the malfunctions. The DTCs can be
accessed by using the hand-held tester.
For details, refer to the 2006 RAV4 Repair Manual (Pub. No. RM01M1U).

INTRODUCTION – TERMSIN–49
IN
IAT Intake Air Temperature Intake or Inlet Air Temperature
ICM Ignition Control Module -
IFI Indirect Fuel Injection Indirect Injection (IDL)
IFS Inertia Fuel-Shutoff -
ISC Idle Speed Control -
KS Knock Sensor Knock Sensor
MAF Mass Airflow Air Flow Meter
MAP Manifold Absolute Pressure Manifold Pressure Intake Vacuum
MC Mixture ControlElectric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDP Manifold Differential Pressure -
MFI Multiport Fuel Injection Electronic Fuel Injection (EFI)
MIL Malfunction Indicator Lamp Check Engine Lamp
MST Manifold Surface Temperature -
MVZ Manifold Vacuum Zone -
NVRAM Non-Volatile Random Access Memory -
O2S Oxygen Sensor Oxygen Sensor, O2 Sensor (O2S)
OBD On-Board Diagnostic On-Board Diagnostic System (OBD)
OC Oxidation Catalytic Converter Oxidation Catalyst Converter (OC), CCo
OL Open Loop Open Loop
PAIR Pulsed Secondary Air Injection Air Suction (AS)
PCM Powertrain Control Module -
PNP Park/Neutral Position -
PROM Programmable Read Only Memory -
PSP Power Steering Pressure -
PTOX Periodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAM Random Access Memory Random Access Memory (RAM)
RM Relay Module -
ROM Read Only Memory Read Only Memory (ROM)
RPM Engine Speed Engine Speed
SC Supercharger Supercharger
SCB Supercharger Bypass E-ABV
SFI Sequential Multiport Fuel Injection Electronic Fuel Injection (EFI), Sequential Injection
SPL Smoke Puff Limiter -
SRI Service Reminder Indicator -
SRT System Readiness Test -
ST Scan Tool -
TB Throttle Body Throttle Body
TBI Throttle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TC Turbocharger Turbocharger
TCC Torque Converter Clutch Torque Converter
TCM Transmission Control Module Transmission ECU, ECT ECU
TP Throttle Position Throttle Position
TR Transmission Range -
TVV Thermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV) SAE
ABBREVIATIONSSAE TERMS TOYOTA TERMS ( )-ABBREVIATIONS

ES–402AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
If communication is normal: Inspect the DLC3 on the
original vehicle.
If communication is still not possible: The problem is
probably in the tester itself. Consult the Service
Department listed in the instruction manual.
6. BATTERY VOLTAGE
Standard battery voltage:
11 to 14 V
If the voltage is below 11 V, replace or recharge the
battery before proceeding.
7. MIL (Malfunction Indicator Lamp)
(a) The MIL is illuminated when the ignition switch is
first turned ON (the engine is not running).
(b) The MIL should turn OFF when the engine is
started. If the MIL remains illuminated, the diagnosis
system has detected a malfunction or abnormality in
the system.
HINT:
If the MIL is not illuminated when the ignition switch
is first turned ON, check the MIL circuit (see page
ES-386).
8. ALL READINESS
For the vehicle, using the intelligent tester allows
readiness codes corresponding to all DTCs to be read.
When diagnosis (normal or malfunctioning) has been
complete, readiness codes are set. Select the following
menu items on the intelligent tester: ENHANCED OBD II
/ MONITOR STATUS.

ES–442GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
If communication is normal: Inspect the DLC3 on the
original vehicle.
If communication is still not possible: The problem is
probably in the tester itself. Consult the Service
Department listed in the instruction manual.
6. BATTERY VOLTAGE
Standard battery voltage:
11 to 14 V
If the voltage is below 11 V, replace or recharge the
battery before proceeding.
7. MIL (Malfunction Indicator Lamp)
(a) The MIL is illuminated when the ignition switch is
first turned ON (the engine is not running).
(b) The MIL should turn OFF when the engine is
started. If the MIL remains illuminated, the diagnosis
system has detected a malfunction or abnormality in
the system.
HINT:
If the MIL is not illuminated when the ignition switch
is first turned ON, check the MIL circuit (see page
ES-430).
8. ALL READINESS
For the vehicle, using the intelligent tester allows
readiness codes corresponding to all DTCs to be read.
When diagnosis (normal or malfunctioning) has been
complete, readiness codes are set. Select the following
menu items on the intelligent tester: ENHANCED OBD II
/ MONITOR STATUS.

TF–18GF1A TRANSFER – ACTIVE TORQUE CONTROL 4WD SYSTEM
TF
• If communication is still not possible when the
tester is connected to another vehicle, the
problem may be in the tester itself. Consult the
Service Department listed in the tester's
instruction manual.
3. INDICATOR LIGHT
(a) When a problem occurs in the active torque control
4WD system, the 4WD indicator light on the
combination meter comes ON to inform the driver of
the problem.
DTC CHECK / CLEAR
1. CHECK DTC (When Using Intelligent Tester)
(a) Check the DTCs.
(1) Connect the intelligent tester (with CAN VIM) to
the DLC3.
(2) Turn the ignition switch ON.
(3) Read the DTCs by following the prompts on the
tester screen.
HINT:
Refer to the intelligent tester (with CAN VIM)
operator's manual for further details.
2. CLEAR DTC (When Using Intelligent Tester)
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Operate the intelligent tester (with CAN VIM) to
clear the codes.
HINT:
Refer to the intelligent tester (with CAN VIM)
operator's manual for further details.
3. CHECK DTC (When not Using Intelligent Tester)
(a) Check the DTCs.
(1) Using the SST, connect terminals TC (13) and
CG (4) of the DLC3
SST 09843-18040
(2) Turn the ignition switch ON.
C128618E02
B127989E01
H100769E10

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–19
BC
4. FAIL SAFE FUNCTION
(a) When a failure occurs in the ABS with BA, TRC and
VSC systems, the ABS and VSC warning lights
illuminate, the slip indicator light comes on*1 or
remains off*2, and the operations of those systems
are prohibited. In addition to this, when a failure
which disables the EBD operation occurs, the brake
warning light comes on and its operation is
prohibited.
HINT:
*1: for 2WD
*2: for 4WD
(b) If control is prohibited due to a malfunction during
operation, control is disabled gradually to avoid
sudden vehicle instability.
5. INITIAL CHECK
(a) When the vehicle speed first reaches approximately
6 km/h (4 mph) or more after the ignition switch is
turned ON, each solenoid valve and the motor of the
ABS and TRACTION actuator are sequentially
activated to perform electrical checks. During the
initial check, the operating sound of the solenoid
valve and motor can be heard from the engine
compartment, but this does not indicate a
malfunction.
6. SERVICE MODE
(a) VSC operation can be disabled by operating the
intelligent tester.
HINT:
Refer to the intelligent tester operator's manual for
further details.
7. FUNCTION OF COMPONENTS
Components Functions
Speed Sensor
(Semiconductor Type)Detects the wheel speed and sends the signal to skid
control ECU
Skid Control ECU
(Housed in ABS and TRACTION Actuator)• Processes the signals from each sensor to control the
ABS, BA, TRC, and VSC
• Sends and receives control signals to and from the
ECM, yaw rate and deceleration sensor, steering
sensor, etc. via CAN communication.
ABS and TRACTION Actuator • Consists of the master cylinder cut solenoid valve,
holding solenoid valve, pressure reduction solenoid
valve, pump motor, and reservoir, and adjusts the brake
fluid pressure applied to each wheel cylinder
• Houses the skid control ECU
Solenoid Relay • Supplies power to each solenoid
• Housed in the skid control ECU
Motor Relay (VSC MTR Relay) • Supplies power to the pump motor
• Installed in engine room No. 1 relay block
Fail-safe Relay (VSC FAIL Relay) • Cuts off power to the motor when the pump motor circuit
malfunctions
• Installed in engine room No. 1 relay block

CRUISE CONTROL – CRUISE CONTROL SYSTEMCC–17
CC
HINT:
Connect the cable of the intelligent tester (with CAN
VIM) to the DLC3, turn the ignition switch ON and
attempt to use the tester. If the display indicates that
a communication error has occurred, there is a
problem either with the vehicle or with the tester.
• If communication is normal when the tester is
connected to another vehicle, inspect the DLC3
of the original vehicle.
• If communication is still not possible when the
tester is connected to another vehicle, the
problem may be in the tester itself. Consult the
Service Department listed in the tester's
instruction manual.
3. CHECK INDICATOR
(a) Turn the ignition switch ON.
(b) Check that the CRUISE main indicator light
illuminates when the cruise control main switch is
turned ON, and that the indicator light goes off when
the main switch is turned OFF.
HINT:
• If the indicator check result is not normal,
proceed to troubleshooting for the combination
meter section (see page ME-15).
• If a malfunction occurs in the speed sensor or
stop light switch, etc. during cruise control
driving, the ECM activates the AUTO CANCEL of
the cruise control and the CRUISE main indicator
light blinks to inform the driver of a malfunction.
At the same time, the malfunction is stored in
memory as a diagnostic trouble code.
DTC CHECK / CLEAR
1. CHECK DTC (USING INTELLIGENT TESTER)
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Read the DTCs by following the directions on the
tester screen.
HINT:
Refer to the intelligent tester operator's manual for
further details.
B127989E01
E123593
BE04034E10
B127989E01