2006 TOYOTA RAV4 Service Repair Manual

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Page 1489 of 2000

TOYOTA RAV4 2006 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–17
TW
DTC No. Detection Item Trouble Area See page
C2181/81 Transmitter ID1 not received • Tire pressure warning valve
and transmitter
• Tire

Page 1490 of 2000

TOYOTA RAV4 2006 Service Repair Manual TW–18TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
PROBLEM SYMPTOMS TABLE
HINT:
• Use the table below to help determine the cause of the
problem symptom. The potential causes of the sympto

Page 1491 of 2000

TOYOTA RAV4 2006 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–19
TW
TERMINALS OF ECU
1. CHECK TIRE PRESSURE WARNING ECU
(a) Disconnect the E56 ECU connector.
(b) Measure the voltage and resistance of the wire

Page 1492 of 2000

TOYOTA RAV4 2006 Service Repair Manual TW–20TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
DIAGNOSIS SYSTEM
1. CHECK DLC3
The ECM uses ISO 15765-4 for communication. The
terminal arrangement of the DLC3 complies with SAE
J1962 an

TW–20TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
DIAGNOSIS SYSTEM
1. CHECK DLC3
The ECM uses ISO 15765-4 for communication. The
terminal arrangement of the DLC3 complies with SAE
J1962 and matches the ISO 15765-4 format.
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 (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
wither with the vehicle or with the tester.
• If communication is normal when the tester is
connected to another vehicle, inspect the DLC3 on
the original vehicle.
• If communication is still not possible when the tool is
connected to another vehicle, the problem is probably
in the tester itself. So consult the Service Department
listed in the tester's instruction manual.
2. DIAGNOSIS SYSTEM
(a) Warning light
(1) The tire pressure warning light blinks when there
is a malfunction in the tire pressure warning
system.
NOTICE:
When the malfunction has been corrected,
the tire pressure warning light does not turn
on.
(b) DTCs (Normal mode)
(1) DTCs are memorized in the tire pressure
warning ECU. These DTCs can be read by
checking the blinks of the tire pressure warning
light or by using the intelligent tester (see page
TW-20).
H100769E16
Symbols (Terminals 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 ground Always 11 to 14 V
CANH (6) - CANL (14) HIGH-level CAN bus line Ignition switch OFF 54 to 69
CANH (6) - Body ground HIGH-level CAN bus line Ignition switch OFF1 M or higher
CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch OFF 1 M
or higher
CANL (14) - Body ground LOW-level CAN bus line Ignition switch OFF1 M
or higher
CANH (6) - CG (4) LOW-level CAN bus line Ignition switch OFF 1 M
or higher
B127989E01
F101014E01

Page 1493 of 2000

TOYOTA RAV4 2006 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–21
TW
(c) Test mode
(1) By switching from normal mode to test mode
(input signal check), you can inspect the tire
pressure monitor receiver, eac

Page 1494 of 2000

TOYOTA RAV4 2006 Service Repair Manual TW–22TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
*2: Turns on and turns off repeatedly at 0.125 second
intervals.
*3: Turns on and turns off repeatedly at 0.25 second
intervals.
DTC CHECK

Page 1495 of 2000

TOYOTA RAV4 2006 Service Repair Manual TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–23
TW
(c) Read and record any DTCs from the tire pressure
warning light on the combination meter. Refer to the
illustration for examples of a no

Page 1496 of 2000

TOYOTA RAV4 2006 Service Repair Manual TW–24TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the intelligent tester's DATA LIST allows switch,
actuator and other item values

TW–24TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the intelligent tester's DATA LIST allows switch,
actuator 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.
Tire pressure warning ECU
Item Measurement item/ Range
(Display)Normal Condition Diagnostic Note
MODE STATUS Tire pressure warning system
mode / NORMAL or REG 2nd or
REG M or TEST NORMAL: Normal mode TEST:
Test mode
REG 2nd: 2nd registration
REG M: Main registration
TEST: Test mode -
MAIN TIRE Number of main tire IDs to be
registered / 0 or 1 or 2 or 3 or 4
or 5 0 to 5 should be displayed -
VEHICLE SPEED Vehicle speed reading /
min.: 0 km/h (0 mph),
max.: 255 km/h (158 mph)Actual vehicle speed Speed indicated on the
combination meter
REGIT ID1 CODE Registered ID1 code / min.: 0,
max.: FFFFFFF The ID No. registered in
transmitter ID1 is displayed -
REGIT ID2 CODE Registered ID2 code / min.: 0,
max.: FFFFFFF The ID No. registered in
transmitter ID2 is displayed -
REGIT ID3 CODE Registered ID3 code / min.: 0,
max.: FFFFFFF The ID No. registered in
transmitter ID3 is displayed -
REGIT ID4 CODE Registered ID4 code / min.: 0,
max.: FFFFFFF The ID No. registered in
transmitter ID4 is displayed -
REGIT ID5 CODE Registered ID5 code / min.: 0,
max.: FFFFFFF The ID No. registered in
transmitter ID5 is displayed -
TRANS STATUS ID code transmission status /
FINISH or NOW FINISH or NOW -
TIREPRESS1 ID1 tire pressure /
min.: 0 kPa (0 kgf/cm
2, 0 psi)
max.: 637.5 kPa (6.48 kgf/cm2,
92.2 psi) Actual tire pressure -
TIREPRESS2 ID2 tire pressure /
min.: 0 kPa (0 kgf/cm
2, 0 psi)
max.: 637.5 kPa (6.48 kgf/cm2,
92.2 psi) Actual tire pressure -
TIREPRESS3 ID3 tire pressure /
min.: 0 kPa (0 kgf/cm
2, 0 psi)
max.: 637.5 kPa (6.48 kgf/cm2,
92.2 psi) Actual tire pressure -
TIREPRESS4 ID4 tire pressure /
min.: 0 kPa (0 kgf/cm
2, 0 psi)
max.: 637.5 kPa (6.48 kgf/cm2,
92.2 psi) Actual tire pressure -
TIREPRESS5 ID5 tire pressure /
min.: 0 kPa (0 kgf/cm
2, 0 psi)
max.: 637.5 kPa (6.48 kgf/cm2,
92.2 psi) Actual tire pressure -

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