2006 TOYOTA RAV4 cooling

2GR-FE COOLING – RADIATORCO–43
CO
15. CONNECT NO. 5 WATER BY-PASS HOSE
(a) Connect the by-pass hose to the radiator.
16. CONNECT NO. 1 WATER BY-PASS HOSE
(a) Connect the by-pass hose to the radiator reservoir.
17. CONNECT HOOD LOCK SWITCH CONNECTOR
18. INSTALL RADIATOR GRILLE SUB-ASSEMBLY (See
page ET-10)
19. INSTALL BATTERY
20. INSTALL BATTERY INSULATOR
21. INSTALL BATTERY CLAMP SUB-ASSEMBLY (See
page ST-15)
22. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
23. INSTALL RADIATOR SUPPORT OPENING COVER
(See page EM-42)
24. INSTALL V-BANK COVER SUB-ASSEMBLY (See
page EM-42)
25. ADD ENGINE COOLANT (See page CO-8)
26. CHECK FOR ENGINE COOLANT LEAKS (See page
CO-1)
A114357E03
A112308

CO–442GR-FE COOLING – RADIATOR
CO
27. INSTALL NO. 1 ENGINE UNDER COVER (See page
EM-41)

AC–10AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
Communication table
Sender Receiver Signal Communication Line
Air conditioning amplifier ECMA/C compressor control signal
CAN Idle up request signal
External variable control solenoid
current signal
Cooling fan motor driving request
signal
Ambient temperature signal
Air conditioning amplifier Air conditioning control assemblyFront panel indication signal
LIN AUTO indication signal
A/C indication signal
MODE indication signal
REC indication signal
FRS indication signal
RDEF indication signal
Blower level indication signal
Set temperature indication signal
Combination meter assembly Air conditioning amplifierVehicle speed signal
CAN
Ambient temperature signal
ECM Air conditioning amplifierEngine revolution speed signal
CAN Engine coolant temperature
signal
A/C control cut signal
Variable control prohibition signal
Air conditioning control assembly Air conditioning amplifierAUTO switch signal
LIN OFF switch signal
A/C switch signal
DEF switch signal
MODE switch signal
RDEF switch signal
Blower switch signal (FAN+, FAN-
)
Set temperature switch signal
(UP, DOWN)

AC–12AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
Communication table
Sender Receiver Signal Communication Line
Air conditioning amplifier ECMA/C compressor control signal
CAN Idle up request signal
External variable control solenoid
current signal
Cooling fan motor driving request
signal
Ambient temperature signal
Air conditioning amplifier Air conditioning control assemblyFront panel indication signal
LIN AUTO indication signal
A/C indication signal
MODE indication signal
REC indication signal
FRS indication signal
RDEF indication signal
Blower level indication signal
Set temperature indication signal
Combination meter assembly Air conditioning amplifierVehicle speed signal
CAN
Ambient temperature signal
ECM Air conditioning amplifierEngine revolution speed signal
CAN Engine coolant temperature
signal
A/C control cut signal
Variable control prohibition signal
Air conditioning control assembly Air conditioning amplifierAUTO switch signal
LIN OFF switch signal
A/C switch signal
DEF switch signal
MODE switch signal
RDEF switch signal
Blower switch signal (FAN+, FAN-
)
Set temperature switch signal
(UP, DOWN)

2AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–55
ES
(c) Turn the tester ON.
(d) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / ACTIVE TEST.
(e) Perform the ACTIVE TEST by referring to the table
below.
ECM:
Intelligent Tester Displays Test Details Control Ranges Diagnostic Notes
INJ VOL Change injection volume Between -12.5 and 24.8 %• All injectors tested at same
time
• Perform test at less than
3,000 rpm
• Injection volume can be
changed in 0.1 % graduations
within control range
A/F CONTROL Change injection volumeDecrease 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.
EVAP VSV (ALONE) Activate purge VSV control ON/OFF -
VVT B1 Control VVT (bank 1)-128 to 127 %
This value added to present OCV
control duty
100 %: Maximum advance
-100 %: Maximum retardEngine stall or rough idle when
VVT actuator operated by 100 %.
Test possible while vehicle
stopped and engine idling
VVT CTRL B1Turn on and off OCV
(Oil Control Valve)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 / SPDActivate fuel pump (C/OPN
Relay)ON/OFFTest possible when engine
stopped
TC/TE1Turn on and off TC and TE1
connectionON/OFF• ON: TC and TE1 connected
• OFF: TC and TE1
disconnected
FC IDL PROHBT Prohibit idling fuel cut control ON/OFF -
COOLING FAN Control electric cooling fan ON/OFF -
ETCS OPEN SLOW Throttle actuator ON: Throttle valve opens slowly Test possible when following
conditions met:
• Engine stopped
• Shift position in P
• Fully depressing accelerator
pedal (APP: 59
or more) ETCS CLOSE SLOW Throttle actuator ON: Throttle valve closes slowly
ETCS OPEN FAST Throttle actuator ON: Throttle valve opens fast
ETCS CLOSE FAST Throttle actuator ON: Throttle valve closes fast
FUEL CUT #1 Cylinder #1 injector fuel cut ON/OFF
Test possible during vehicle
stopping and engine idling
ON: All cylinder 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 ALL All cylinder injector fuel cut ON/OFF ON: All cylinder injector fuel cut
VACUUM PUMP Leak detection pump ON/OFF -
VENT VALVE Vent valve ON/OFF -

ES–602AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
P0122 Throttle / Pedal
Position Sensor /
Switch "A" Circuit
Low Input- TP sensor (built into
throttle body)
- Short in VTA1 circuit
- Open in VC circuit
- ECMComes on DTC storedES-114
P0123 Throttle / Pedal
Position Sensor /
Switch "A" Circuit
High Input- TP sensor (built into
throttle body)
- Open in VTA1 circuit
- Open in E2 circuit
- Short between VC
and VTA1 circuits
- ECMComes on DTC storedES-114
P0125 Insufficient Coolant
Temperature for
Closed Loop Fuel
Control- Cooling system
- ECT sensor
- ThermostatComes on DTC storedES-123
P0128 Coolant Thermostat
(Coolant
Temperature Below
Thermostat
Regulating
Temperature)- Thermostat
- Cooling system
- ECT sensor
- ECMComes on DTC storedES-126
P0136 Oxygen Sensor
Circuit Malfunction
(Bank 1 Sensor 2)- Open or short in
HO2 sensor (sensor
2) circuit
- HO2 sensor (sensor
2)
- HO2 sensor heater
(sensor 2)
- Air-Fuel Ratio (A/F)
sensor (sensor 1)
- Integration relay
(EFI MAIN relay)
- Gas leakage from
exhaust systemComes on DTC storedES-129
P0137 Oxygen Sensor
Circuit Low Voltage
(Bank 1 Sensor 2)- Open in HO2 sensor
(sensor 2) circuit
- HO2 sensor (sensor
2)
- HO2 sensor heater
(sensor 2)
- Integration relay
(EFI MAIN relay)
- Gas leakage from
exhaust systemComes on DTC storedES-129
P0138 Oxygen Sensor
Circuit High Voltage
(Bank 1 Sensor 2)- Short in HO2 sensor
(sensor 2) circuit
- HO2 sensor (sensor
2)
- ECM internal circuit
malfunctionComes on DTC storedES-129
P0141 Oxygen Sensor
Heater Circuit
Malfunction (Bank 1
Sensor 2)- Open or short in
HO2 sensor heater
circuit
- HO2 sensor heater
(sensor 2)
- Integration relay
(EFI MAIN relay)
- ECMComes on DTC storedES-80 DTC No. Detection Item Trouble Areas MIL Memory See page