2006 TOYOTA RAV4 Service Repair Manual

fuel filter ECO mode hood open check engine radio controls climate control

Page 1609 of 2000

TOYOTA RAV4 2006 Service Repair Manual POWER STEERING – ELECTRONIC POWER STEERING SYSTEMPS–9
PS
TERMINALS OF ECU
1. CHECK POWER STEERING ECU
HINT:
Measurements cannot be performed on the C connector
side of the power steering ECU.
(

Page 1610 of 2000

TOYOTA RAV4 2006 Service Repair Manual PS–10POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
If the result is not as specified, the ECU may have a
malfunction.
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3:
The power steerin

PS–10POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
If the result is not as specified, the ECU may have a
malfunction.
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3:
The power steering ECU uses CAN (ISO11898-1)
and ISO9141-2 for communication protocol. The
terminal arrangement of the DLC3 complies with
SAE J1962 and matches the ISO9141-2 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
operate the ignition switch, other switches or
the 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 display indicates that a
communication error has occurred, there is a
problem either with the vehicle or with the tester.
PGND (A1-2) - Body
groundW-B - Body ground Power ground Always Below 1
C1 (e2-1) - PGND (A1-2) R - W-B Resolver signal Ignition switch ON
Steering wheel is turned0.68 to 4.42 V
C2 (e2-5) - PGND (A1-2) L - W-B Resolver signal Ignition switch ON
Steering wheel is turned0.68 to 4.42 V
S1 (e2-2) - PGND (A1-2) B - W-B Resolver signal Ignition switch ON
Steering wheel is turned0.68 to 4.42 V
S2 (e2-6) - PGND (A1-2) Y - W-B Resolver signal Ignition switch ON
Steering wheel is turned0.68 to 4.42 V
R1 (e2-4) - PGND (A1-2) W - W-B Resolver excitation signal Ignition switch ON
Steering wheel is turned2.9 to 5.1 V
R2 (e2-8) - PGND (A1-2) G - W-B Resolver excitation signal Ignition switch ON
Steering wheel is turned2.9 to 5.1 V
CANH (E18-2) - CANL
(E18-8)Y - W CAN communication line Ignition switch OFF 54 to 67
Symbols (Terminal No.) Wiring Color Terminal Description ConditionSpecified Condition
H100769E43
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 11 to 14 V
CANH (6) - CANL (14) HIGH-level CAN bus line Ignition switch OFF*54 to 67
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

Page 1611 of 2000

TOYOTA RAV4 2006 Service Repair Manual POWER STEERING – ELECTRONIC POWER STEERING SYSTEMPS–11
PS
• If communication is normal when the tester is
connected to another vehicle, inspect the DLC3
of the original vehicle.
• If commu

Page 1612 of 2000

TOYOTA RAV4 2006 Service Repair Manual PS–12POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
(3) Read and write down any DTCs indicated by the
P/S warning light on the combination meter.
Refer to the chart below for examples of

Page 1613 of 2000

TOYOTA RAV4 2006 Service Repair Manual POWER STEERING – ELECTRONIC POWER STEERING SYSTEMPS–13
PS
(b) When not using intelligent tester:
(1) Using SST, connect terminals 12 (TS) and 4
(CG) of the DLC3.
SST 09843-18040
(2) Turn the ig

Page 1614 of 2000

TOYOTA RAV4 2006 Service Repair Manual PS–14POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
FREEZE FRAME DATA
1. FREEZE FRAME DATA
NOTICE:
• It is difficult to show the specified values
(judgment values) clearly because freez

PS–14POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
FREEZE FRAME DATA
1. FREEZE FRAME DATA
NOTICE:
• It is difficult to show the specified values
(judgment values) clearly because freeze frame
data values change significantly due to
differences in measurement conditions,
surroundings, or vehicle conditions. For this
reason, there may be a problem even when the
values are within specifications.
• Turn the ignition switch ON and park the vehicle
on level ground. Check the freeze frame data by
using intelligent tester.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON and check the freeze
frame data by following the prompts on the
intelligent tester display.
Power steering ECU
Item Item Description: Range
(Display)Inspection Condition Reference Value
BATTERY VOLTAGE Battery voltage:
Min.: 0 V
Max.: 25.5 V- 10 to 14 V
SPD Vehicle speed from meter:
Min.: 0 km/h (0 mph)
Max.: 300 km/h (187.5 mph)Vehicle stopped 0 km/h (mph)
Vehicle driven at constant speedNo significant fluctuation
ENGINE REV Show the engine revolution:
Min.: 0 rpm
Max.: 12800 rpmEngine is running at a constant
speedNo significant fluctuation
MOTOR ACTUAL Amount of current to motor:
Min.: -327.68 A
Max.: 327.67 APower steering is in operationValue changes in proportion to
steering effort
COMMAND VALUE Demanded amount of current to
motor:
Min.: -327.68 A
Max.: 327.68 APower steering is in operationValue changes in proportion to
steering effort
STR ANGL VEL Steering angle speed:
Min.: -32768
/sec.
Max.: 32767/sec.Steering wheel is turned Value changes in proportion to
steering effort
STEERING TORQUE Steering wheel torque:
Min.: -7 Nm
Max.: 7 Nm--
THERMISTOR TEMP ECU substrate temperature:
Min.: -40
C
Max.: 150
CIgnition switch ON -
PIG SUPPLY Power source voltage to activate
motor:
Min.: 0 V
Max.: 20.1531 VPower steering in operation 10 to 14 V
IG SUPPLY ECU power source voltage:
Min.: 0 V
Max.: 20.1531 VIgnition switch ON 10 to 14 V
MOTOR ROTATE Motor rotation angle:
Min.: 0
Max.: 360
Power steering in operation During steering operation, motor
rotation angle value changes from
0 to 360
MOTOR VOLTAGE Motor power supply voltage:
0 V
Max.: 45.955 VPower steering in operation -

Page 1615 of 2000

TOYOTA RAV4 2006 Service Repair Manual POWER STEERING – ELECTRONIC POWER STEERING SYSTEMPS–15
PS
MTR TERMINAL(U) Motor terminal voltage (U phase):
Min.: 0 V
Max.: 46.667 VSteering wheel is turned While turning the steering wheel,
a

Page 1616 of 2000

TOYOTA RAV4 2006 Service Repair Manual PS–16POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
FAIL-SAFE CHART
If a problem occurs in the electric power steering system, the
P/S warning light will come on in the combination meter

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