TOYOTA RAV4 2006 Service Repair Manual

TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–9
TW
NEXT
Result
B
A
(a) Terminals of ECU (see page TW-16).
(b) DATA LIST/ACTIVE TEST (see page TW-21).
NEXT
NEXT
NEXT
6PROBLEM SYMPTOM CONFIRMATION
7PROBLEM SYMPTOMS TABLE
Result Proceed to
Fault is not listed in problem symptoms
tableA
Fault is listed in problem symptoms
tableB
Go to step 9
8OVERALL ANALYSIS AND TROUBLESHOOTING*
9REPAIR OR REPLACE
10CONFIRMATION TEST
END

TW–10TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
REGISTRATION
1. IN CASE OF TIRE PRESSURE WARNING ECU
REPLACEMENT
(a) Read ID stored in the old ECU using the intelligent
tester.
2. IN CASE OF TIRE PRESSURE WARNING VALVE AND
TRANSMITTER AND/OR TIRE PRESSURE WARNING
ECU REPLACEMENT
(a) Read the ID written on the tire pressure monitor
valve.
3. REGISTER TRANSMITTER ID
NOTICE:
It is necessary to register the transmitter ID in the
tire pressure warning ECU when replacing the tire
pressure warning valve and transmitter and/or tire
pressure warning ECU.
(a) Prepare all of the transmitter ID data before starting
registration.
HINT:
• Read the registered transmitter IDs that are
stored in the ECU using the intelligent tester and
make a note of them.
• If reading stored transmitter IDs is impossible
due to malfunctions of components such as the
tire pressure warning antenna and receiver,
remove the tires from the wheels and check the
IDs located on the tire pressure warning valves
and transmitters (see page TW-60).
• When replacing the tire pressure warning valves
and transmitters, make a note of the IDs written
on the tire pressure warning valves and
transmitters.
(b) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(c) Turn the ignition switch ON.
(d) *1: Read and write down the ID (ID1 to ID5) by
using the DATA LIST.
C124986E02
F100621

TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–11
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(e) *2: Select REGIST TIRE SET following the
intelligent tester screen (UTILITY - REGIST TIRE
SET).
(f) *3: Select the registration mode "MAIN".
(g) Input the ID (ID1 to ID5) using the intelligent tester
and transmit it to the tire pressure warning ECU.
F100622
F100623

TW–12TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
(h) Set the ID transmission condition to "ID Registration
is complete".
HINT:
• The previously registered IDs will be deleted
from the memory when the registration is
completed.
• If the operations of *1 to *3 are not completed
within 5 minutes, the mode will return to normal
operation mode.
4. CONFIRMATION OF TRANSMITTER ID
REGISTRATION
(a) Set the tire pressure of all wheels (including the
spare tire) to the specified value.
Standard pressure:
220 kPa (2.2 kgf/cm
2, 32 psi)
F101083E01

TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–13
TW
(b) Connect the intelligent tester (with CAN VIM ) to the
DLC3.
(c) Turn the ignition switch ON.
(d) Select "SIGNAL CHECK" mode on the intelligent
tester (with CAN VIM ) (see page TW-12).
(e) Confirm that the transmitter IDs and tire pressure
data for all the tires are displayed on the intelligent
tester screen.
NOTICE:
• It may take up to 1 minute to update the tire
pressure data.
• If the IDs have not been registered, DTC
C2171/71 is set in the tire pressure warning
ECU after approximately 60 minutes.

TW–14TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
TEST MODE PROCEDURE
1. TEST MODE CHECK
HINT:
• When entering the TEST MODE, the tire pressure
warning ECU sets all the test DTCs first. After
completing the test mode for each inspection item, the
DTCs that are determined normal by the tire pressure
warning ECU will be erased.
The DTCs for other inspection items may not be
erased when only a certain signal is inspected.
• When the test mode returns back to the normal mode,
all the test DTCs will be erased.
(a) Make sure that the ignition switch is OFF.
(b) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(c) Turn the ignition switch ON.
(d) Select TEST MODE on the intelligent tester.
B127989E01
C122887

TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–15
TW
(e) Confirm that the tire pressure warning light in the
combination meter blinks at 0.125 second intervals.
2. PERFORM SIGNAL CHECK
HINT:
• When entering the signal check, the tire pressure
warning ECU sets all the signal check DTCs first.
After completing the signal check for each inspection
item, the DTCs that are determined normal by the tire
pressure warning ECU will be erased. The DTCs for
other inspection items may not be erased when only a
certain signal is inspected.
• When the signal check returns back to normal mode,
all the signal check DTCs will be erased.
(a) Make sure that the ignition switch is OFF.
(b) Connect the intelligent tester (with CAN VIM ) to the
DLC3.
(c) Turn the ignition switch ON.
(d) Select SIGNAL CHECK on the intelligent tester.
(e) Drive the vehicle at 12 mph (20 km/h) or more for 10
seconds or more .
F100632E01
B127989E01

TW–16TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
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(f) Loosen the valve core and rapidly reduce the
pressure (above 40 kPa / 30 seconds or more).
HINT:
The transmitter ID can be transmitted by rapidly
reducing the tire pressure.
(g) Result
HINT:
After the signal check is completed, check for a
DTC and signal check DTC to confirm the system
status.
(h) End of SIGNAL CHECK
After completing test mode (SIGNAL CHECK), turn
the ignition switch OFF and disconnect the tester.
DTC of SIGNAL CHECK (TEST DIAGNOSIS)
function:
If a malfunction code is displayed during the
test mode DTC check, check the circuit listed
for that code. For details of each code, refer to
the "see page" of the "DTC No." in the chart.
F101084
Condition Procedure
SIGNAL CHECK DTC is output Repair faulty part and enter SIGNAL CHECK again
SIGNAL CHECK DTCs are cleared No problem

TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–17
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DTC No. Detection Item Trouble Area See page
C2181/81 Transmitter ID1 not received • Tire pressure warning valve
and transmitter
• Tire pressure warning
antenna and receiver
• Tire pressure warning ECU
• Wire harnessTW-28
C2182/82 Transmitter ID2 not received • Tire pressure warning valve
and transmitter
• Tire pressure warning
antenna and receiver
• Tire pressure warning ECU
• Wire harnessTW-28
C2183/83 Transmitter ID3 not received • Tire pressure warning valve
and transmitter
• Tire pressure warning
antenna and receiver
• Tire pressure warning ECU
• Wire harnessTW-28
C2184/84 Transmitter ID4 not received • Tire pressure warning valve
and transmitter
• Tire pressure warning
antenna and receiver
• Tire pressure warning ECU
• Wire harnessTW-28
C2185/85 Transmitter ID5 not received • Tire pressure warning valve
and transmitter
• Tire pressure warning
antenna and receiver
• Tire pressure warning ECU
• Wire harnessTW-28
C2191/91 Vehicle speed signal error • Vehicle speed sensor
• Tire pressure warning ECU
• Combination meter
• Wire harnessTW-44

TW–18TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
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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.
• Inspect the fuses and relays related to this system before
inspecting the suspected areas below.
Tire pressure warning system
Symptom Suspected area See page
Tire pressure warning system does not operate1. ECU power source circuitTW-49
2. TC and CG terminal circuitTW-51
3. Tire pressure warning valve and transmitterTW-60
4. Combination meterME-52
5. Tire pressure warning antenna and receiverTW-53
6. Tire pressure warning ECUTW-64
DTC check cannot be completed1. ECU Power source circuitTW-49
2. TC and CG terminal circuitTW-51
3. Tire pressure warning ECUTW-64
Tire pressure warning light malfunctions (Does not turn
on)1. ECU Power source circuitTW-49
2. Tire pressure warning light circuitTW-47
3. Combination meterME-52
4. Tire pressure warning ECUTW-64
Tire pressure warning light malfunctions (Remains on)1. Tire pressure checkTW-2
2. Tire pressure warning ECU connector poorly connected -
3. Tire pressure warning light circuitTW-47
4. Combination meterME-52
5. Tire pressure warning ECUTW-64
Tire pressure warning light malfunctions (Blinking)1. Check DTCTW-20
2. TC and CG terminal circuitTW-51
3. Test mode (SIGNAL CHECK)TW-12
4. Tire pressure warning ECUTW-64