2006 TOYOTA RAV4 engine coolant

U241E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–15
AX
ROAD TEST
1. PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem
analysis, try to reproduce the symptoms. If the
problem is that the transaxle does not shift up, shift
down, or the shift point is too high or too low,
conduct the following road test referring to the
automatic shift schedule and simulate the problem
symptoms.
2. ROAD TEST
NOTICE:
Perform the test at the normal operating ATF
temperature of 50 to 80
C (122 to 176F).
(a) D position test
Move the shift lever to D and fully depress the
accelerator pedal. Check the following:
(1) Check up-shift operation.
Check that the 1
2, 2 3 and 3 O/D up-
shifts take place at the shift point shown in the
automatic shift schedule (see page SS-60).
HINT:
O/D Gear Up-shift Prohibition Control
• Engine coolant temperature is 55
C (131F)
or less and vehicle speed is at 70 km/h (43
mph) or less.
• ATF temperature is 5
C (41F) or less.
O/D Gear Lock-up Prohibition Control
• Brake pedal is depressed.
• Accelerator pedal is released.
• Engine coolant temperature is 60
C (140F)
or less.
(2) Check for shift shock and slip.
Check for shock and slip at the 1
2, 2 3 and
3
O/D up-shifts.
(3) Check for abnormal noise and vibration.
Check for abnormal noise and vibration when
up-shifting from 1
2, 2 3 and 3 O/D while
driving with the shift lever on D, and check while
driving in the lock-up condition.
HINT:
The check for the cause of abnormal noise and
vibration must be done thoroughly as it could
also be due to loss of balance in the differential,
torque converter clutch, etc.
(4) Check kick-down operation.
While driving the vehicle in the 2nd, 3rd and O/D
gears with the shift lever on D, check that the
possible kick-down vehicle speed limits for 2

1, 3
2 and O/D 3 kick-downs conform to
those indicated in the automatic shift schedule
(see page SS-60).
(5) Check for abnormal shock and slip at kick-down.

AX–24U241E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
MONITOR DRIVE PATTERN
1. TEST MONITOR DRIVE PATTERN FOR ECT
CAUTION:
Perform this drive pattern on a level surface and
strictly observe the posted speed limits and traffic
laws while driving.
HINT:
Performing this drive pattern is one method to simulate
the ECT's malfunction detection conditions.
The DTCs may not be detected through ordinary,
everyday driving. Also, DTCs may not be detected
through this drive pattern.
(a) Preparation for driving
(1) Warm up the engine sufficiently (engine coolant
temperature is 60
C (140F) or higher).
(2) Drive the vehicle when the atmospheric
temperature is -10
C (14F) or higher.
Malfunction is not detected when the
atmospheric temperature is less than -10
C
(14
F).
(b) Drive pattern
(1) Drive the vehicle through all the gears.
St o p
1st 2nd 3rd O/D O/D (lock-up
ON).
(2) Repeat the above drive pattern 3 times or more.
NOTICE:
• When using the intelligent tester, the
monitor status can be found in
"ENHANCED OBD II / DATA LIST" or under
"CARB OBD II".
• In the event that the drive pattern must be
interrupted (due to traffic conditions or
other factors), the drive pattern can be
resumed and, in most cases, the monitor
can be completed.
CAUTION:
Perform this drive pattern on a level road as
much as possible and strictly observe the
posted speed limits and traffic laws while
driving.

AX–26U241E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
PROBLEM SYMPTOMS TABLE
HINT:
• Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspected area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. Replace parts
as necessary.
• The Matrix Chart is divided into 2 chapters. When
troubleshooting, check Chapter 1 first. If instructions are
given in Chapter 1 to proceed to 2, proceed as instructed.
• If the instruction "Proceed to next circuit inspection shown
in problem symptoms table" is given in the flowchart for
each circuit, proceed to the next suspected area in the
table.
• If the problem still occurs even though there are no
malfunctions in any of the circuits, check the ECM and
replace it if necessary.
CHAPTER 1: ELECTRICAL CIRCUIT MATRIX CHART
HINT:
*: When the circuit is defective, a DTC may be output.
CHAPTER 2: ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIR
Symptom Suspected area See page
No up-shift (1st -> 2nd) ECMIN-37
No up-shift (2nd -> 3rd) ECMIN-37
No up-shift (3rd -> O/D)1. Park/Neutral position switch circuit*AX-39
2. ECMIN-37
No down-shift (O/D -> 3rd) ECMIN-37
No down-shift (3rd -> 2nd) ECMIN-37
No down-shift (2nd -> 1st) ECMIN-37
No lock-up or no lock-up off ECMIN-37
Shift point too high or too low ECMIN-37
Up-shift to O/D from 3rd while shift lever is on 31. Park/Neutral position switch circuit*AX-39
2. ECMIN-37
Up-shift to O/D from 3rd while engine is cold1. Engine coolant temp. sensor circuit*ES-51
2. ECMIN-37
Harsh engagement (N -> D) ECMIN-37
Harsh engagement (lock-up) ECMIN-37
Harsh engagement (any driving position) ECMIN-37
Poor acceleration ECMIN-37
Engine stalls when starting off or stopping ECMIN-37
Malfunction in shifting1. Park/Neutral position switch circuit*AX-39
2. ECMIN-37
Symptom Suspected area See page
Vehicle does not move in all positions other than P and
N1. Manual valveAX-154
2. Primary regulator valveAX-154
3. Front and rear planetary gearAX-154
4. U/D planetary gearAX-154
5. F2 U/D one-way clutchAX-154
6. C1 forward clutchAX-154
7. B3 U/D brakeAX-154

AX–34U241E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
4. FREEZE FRAME DATA
(a) Freeze frame data records the engine conditions
(fuel system, calculated load, engine coolant
temperature, fuel trim, engine speed, vehicle speed,
etc.) when a malfunction is detected. When
troubleshooting, freeze frame data can help
determine if the vehicle was running or stopped, if
the engine was warmed up or not, if the air-fuel ratio
was lean or rich, and other data from the time the
malfunction occurred.
(b) The intelligent tester records freeze frame data in 5
different instances: 1) 3 times before the DTC is set,
2) once when the DTC is set, and 3) once after the
DTC is set. These data can be used to simulate the
vehicle's condition around the time when the
malfunction occurred. The data may help find the
cause of the malfunction, or judge if the DTC is
being caused by a temporary malfunction or not.
5. DATA LINK CONNECTOR 3 (DLC3)
(a) The vehicle's ECM uses the ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
HINT:
*: Before measuring the resistance, leave the vehicle as is for
at least 1 minute and do not operate the ignition switch, other
switches or doors.
If the result is not as specified, the DLC3 may have a
malfunction. Repair or replace the harness and connector.
HINT:
Connect the cable of the intelligent tester to the DLC3, turn
the ignition switch ON and attempt to use the tester. If the
screen displays UNABLE TO CONNECT TO VEHICLE, a
problem exists in the vehicle side or the tester side.
A092901E13
A082779E81
Symbols (Terminal No.) Terminal Description Condition Specified Condition
SIL (7) - SG (5) Bus "+" line During transmission Pulse generation
CG (4) - Body ground Chassis ground Always Below 1
SG (5) - Body ground Signal ground Always Below 1
BAT (16) - Body ground Battery positive Always 9 to 14 V
CANH (6) - CANL (14) HIGH-level CAN bus line Ignition switch OFF 54 to 69
CANH (6) - Battery positive HIGH-level CAN bus line Ignition switch OFF 1 M or higher
CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch OFF 200
or higher
CANL (14) - Battery positive LOW-level CAN bus line Ignition switch OFF 1 M
or higher
CANL (14) - CG (4) LOW-level CAN bus line Ignition switch OFF 200
or higher

GF1A TRANSFER – ACTIVE TORQUE CONTROL 4WD SYSTEMTF–21
TF
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the intelligent tester's (with CAN VIM) DATA LIST
allows switch, sensor and other item values to be read
without removing any parts. Reading the DATA LIST
early in troubleshooting is one way to save time.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Read the DATA LIST according to the display on the
tester.
4WD control ECU
Item Measurement Item/Range
(Display)Normal Condition Diagnostic Note
4WD WARN LAMP 4WD indicator light /OFF or ON OFF: 4WD indicator light OFF
ON: 4WD indicator light ON-
SLIP INDI LAMP Slip indicator light /OFF or ON OFF: SLIP indicator light OFF
ON: SLIP indicator light ON-
STOP LAMP SW Stop light switch /OFF or ON OFF: Brake pedal released
ON: Brake pedal depressed-
STEERING ANGLE Steering angle value /
Min.: -3276.8 deg
Max.: 3276.7 degMin.: -3276.8 deg
Max.: 3276.7 deg-
FR WHEEL SPD FR wheel speed /
Min.: 0 km/h (0 mph)
Reading : Max.: 326.4 km/h
(202.8 mph)Actual wheel speed Almost no difference from the
speedometer
FL WHEEL SPD FL wheel speed /
Min.: 0 km/h (0 mph)
Reading : Max.: 326.4 km/h
(202.8 mph)Actual wheel speed Almost no difference from the
speedometer
RR WHEEL SPD RR wheel speed /
Min.: 0 km/h (0 mph)
Reading : Max.: 326.4 km/h
(202.8 mph)Actual wheel speed Almost no difference from the
speedometer
RLWHEEL SPD RL wheel speed /
Min.: 0 km/h (0 mph)
Reading : Max.: 326.4 km/h
(202.8 mph)Actual wheel speed Almost no difference from the
speedometer
AMBI TEMP Ambient temperature /
Min.: -128
C (198.4 F)
Max.: 127 C (260.6 F)Min.: -128 (198.4
F)
Max.: 127 (260.6
F)-
COOLANT TEMP Engine coolant temperature /
Min.: 0
C (32 F)
Max.: 127.5
C (261.5 F)Min.: 0
C (32 F)
Max.: 127.5 C (261.5 F)-
LOCK SW 4WD lock switch / OFF or ON OFF: 4WD lock switch off
ON: 4WD lock switch on-
SLC CUR SLC solenoid (4WD linear
solenoid) current /
Min.: 0 A
Max.: 3 AMin.: 0 A
Max.: 3 A-

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)

ES–462AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
FAIL-SAFE CHART
If any of the following DTCs are set, the ECM enters fail-safe
mode to allow the vehicle to be driven temporarily.
HINT:
*: The vehicle can be driven slowly when the accelerator
pedal is depressed firmly and slowly. If the accelerator pedal
is depressed quickly, the vehicle may speed up and slow
down erratically.
DTCs Components Fail-Safe OperationsFail-Safe Deactivation
Conditions
P0031 and P0032Air-Fuel Ratio (A/F) Sensor
HeaterECM turns off A/F sensor heater. Ignition switch OFF
P0037 and P0038Heated Oxygen (HO2) Sensor
HeaterECM turns off HO2 sensor heater. Ignition switch OFF
P0100, P0102 and P0103 Mass Air Flow (MAF) MeterECM calculates ignition timing
according to engine speed and
throttle valve position.Pass condition detected
P0110, P0112 and P0113Intake Air Temperature (IAT)
SensorECM estimates IAT to be 20
C
(68
F).Pass condition detected
P0115, P0117 and P0118Engine Coolant Temperature
(ECT) SensorECM estimates ECT to be 80
C
(176
F).Pass condition detected
P0120, P0121, P0122, P0123,
P0220, P0222, P0223, P0604,
P0606, P0607, P0657, P2102,
P2103, P2111, P2112, P2118,
P2119 and P2135Electronic Throttle Control
System (ETCS)ECM cuts off throttle actuator
current and throttle valve returned
to 6
throttle position by return
spring.
ECM then adjusts engine output
by controlling fuel injection
(intermittent fuel-cut) and ignition
timing in accordance with
accelerator pedal opening angle
to allow vehicle to continue at
minimal speed*.Pass condition detected and then
ignition switch turned OFF
P0327 and P0328 Knock SensorECM sets ignition timing to
maximum retard.Ignition switch OFF
P0351 to P0354 Igniter ECM cuts fuel. Pass condition detected
P1550, P1551, P1552 and P1602 Generator Alternator command is fixed. Pass condition detected
P2120, P2121, P2122, P2123,
P2125, P2127, P2128 and P2138Accelerator Pedal Position (APP)
SensorAPP sensor has 2 sensor circuits:
Main and Sub.
If either circuit malfunctions, ECM
controls engine using other
circuit.
If both circuits malfunction, ECM
regards accelerator pedal as
being released. As result, throttle
valve closed and engine idles.Pass condition detected and then
ignition switch turned OFF