2006 TOYOTA RAV4 warning

SB–10SEAT BELT – SEAT BELT WARNING SYSTEM
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(b) Measure the voltage and resistance of the wire
harness side connector.
If the result is not as specified, there may be a
malfunction on the wire harness side.
3. CHECK CLOCK ASSEMBLY (for Manual Air
Conditioning System)
(a) Disconnect the E22 clock connector.
(b) Measure the voltage and resistance of the wire
harness side connector.
If the result is not as specified, there may be a
malfunction on the wire harness side.
Symbols (Terminal No.) Wiring Color Terminal Description ConditionSpecified Condition
+B (E23-1) - Body ground R - Body Ground Power supply Always 10 to 14 V
IG+ (E23-2) - Body ground L - Body Ground Power supply Ignition switch OFF Below 1 V
Ignition switch ON 10 to 14 V
PBEW (E23-4) - Body
groundLG - Body Ground Passenger seat belt signal Sit on passenger seat,
seat belt is fastenedBelow 1
Sit on passenger seat,
seat belt is unfastened10 k or higher
GND (E23-7) - Body
groundW-B - Body Ground Ground Always Below 1
B131598E01
Symbols (Terminal No.) Wiring Color Terminal Description ConditionSpecified Condition
+B (E22-1) - Body ground R - Body ground Power supply Always 10 to 14 V
IG+ (E22-2) - Body ground L - Body ground Power supply Ignition switch OFF Below 1 V
Ignition switch ON 10 to 14 V
PBEW (E22-3) - Body
groundLG - Body ground Passenger seat belt signal Sit on passenger seat,
seat belt is fastenedBelow 1
Sit on passenger seat,
seat belt is unfastened10 k or higher
GND (E22-5) - Body
groundW-B - Body ground Ground Always Below 1

SEAT BELT – SEAT BELT WARNING SYSTEMSB–11
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DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Data of the system can be read through the Data
Link Connector 3 (DLC3) of the vehicle.
Therefore, when the system seems to be
malfunctioning, use the intelligent tester to check for
a malfunction and repair it.
2. CHECK DLC3
(a) The vehicle's ECM uses ISO 15765-4
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
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.
• If communication is normal when the tester is
connected to another vehicle, inspect the DLC3
of the original vehicle.
• If communication is still not possible when the
tester is connected to another vehicle, the
problem may be in the tester itself. Consult the
Service Department listed in the tester's
instruction manual.
H100769E31
B127989E07
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 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 1 k
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 1 k
or higher

SB–12SEAT BELT – SEAT BELT WARNING SYSTEM
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DATA LIST / ACTIVE TEST
1. ACTIVE TEST
HINT:
Performing the intelligent tester ACTIVE TEST allows
relay, VSV, actuator and other items to be operated
without removing any parts. Performing the ACTIVE
TEST early in troubleshooting is one way to save time.
The DATA LIST can be displayed during the ACTIVE
TEST.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Perform the ACTIVE TEST according to the display
on the tester.
Center airbag sensor:
Item Test Details Diagnostic Note
D-BELT REMIND D-SEAT BELT warning light (OFF / ON) Confirm that the vehicle is stopped, engine
idling
P-BELT REMIND P-SEAT BELT warning light (OFF / ON) Confirm that the vehicle is stopped, engine
idling

SEAT BELT – SEAT BELT WARNING SYSTEMSB–13
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ON-VEHICLE INSPECTION
1. CHECK DRIVER SIDE SEAT BELT WARNING LIGHT
(a) Turn the ignition switch ON.
(b) When the driver side seat belt is not fastened, check
that the combination meter's driver side seat belt
warning light starts blinking.
(c) When the seat belt is fastened, check that the
combination meter's driver side seat belt warning
light turns off.
2. CHECK PASSENGER SIDE SEAT BELT WARNING
LIGHT
(a) Turn the ignition switch ON.
(b) When the front passenger seat belt is not fastened,
check that the heater control panel's front
passenger side seat belt warning light starts
blinking.
(c) When the front passenger seat belt is fastened,
check that the heater control panel's front
passenger side seat belt warning light turns off.
3. CHECK SEAT BELT WARNING BUZZER
(a) Turn the ignition switch ON.
(b) After turning the ignition switch ON, if the vehicle is
driven at 20 km/h (12.4 mph) or more and the driver
side or front passenger side seat belt is not
fastened, check that the combination meter's buzzer
sounds at 1.2 second intervals for 30 seconds.
(c) 30 seconds after the buzzer first sounds, check that
the buzzer sounds at 0.4 second intervals for 90
seconds.
(d) 120 seconds after the buzzer has first sounded,
check that the buzzer stops.
(e) After the buzzer has stopped, turn the ignition
switch OFF and then start the engine again. With
the driver side or front passenger side seat belt
unfastened, drive the vehicle at 20 km/h (12.4 mph)
or more. Check that the buzzer sounds.
(f) After the buzzer has stopped, fasten the driver side
or front passenger side seat belt, drive the vehicle at
20 km/h (12.4 mph) or more, and then unfasten the
seat belt. Check that the buzzer sounds.
(g) After the buzzer has stopped, move the shift lever to
R. Then move the shift lever to D and with the driver
side or front passenger side seat belt unfastened,
drive the vehicle at 20 km/h (12.4 mph) or more.
Check that the buzzer sounds.

SB–14SEAT BELT – SEAT BELT WARNING SYSTEM
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DESCRIPTION
When the ignition switch is ON, the center airbag sensor transmits front seat inner belt status signals to
the combination meter through the CAN bus line. If the driver seat belt is not fastened, the combination
meter blinks the driver side seat belt warning light. If the seat belt is fastened, the warning light goes off.
NOTICE:
The seat belt warning system uses the CAN bus line. Before troubleshooting the seat belt warning
system, perform "COMMUNICATION FUNCTION CHECK" by following "HOW TO PROCEED WITH
TROUBLESHOOTING" to confirm that the communication systems are normal.
Driver Side Seat Belt Warning Light does not Operate

SEAT BELT – SEAT BELT WARNING SYSTEMSB–15
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WIRING DIAGRAM
B129858E01

SB–16SEAT BELT – SEAT BELT WARNING SYSTEM
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INSPECTION PROCEDURE
(a) Select the Active Test, use the intelligent tester to
generate a control command, and then check that the
seat belt warning light operates.
Center airbag sensor:
OK:
Driver side seat belt warning light operates
normally.
NG
OK
1PERFORM ACTIVE TEST USING INTELLIGENT TESTER
Item Test Details Diagnosis Note
D-BELT REMIND D-SEAT BELT warning light
(OFF/ON)-
REPLACE COMBINATION METER
ASSEMBLY
REPLACE CENTER AIRBAG SENSOR ASSEMBLY

SEAT BELT – SEAT BELT WARNING SYSTEMSB–17
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DESCRIPTION
When the ignition switch is ON, the center airbag sensor transmits front seat inner belt status signals to
the combination meter through the CAN bus line. If the front passenger seat belt is not fastened, the
heater control panel (automatic A/C) or clock (manual A/C) blinks the front passenger seat belt warning
light. If the seat belt is fastened, the warning light goes off.
NOTICE:
The seat belt warning system uses the CAN bus line. Before troubleshooting the seat belt warning
system, perform "COMMUNICATION FUNCTION CHECK" by following "HOW TO PROCEED WITH
TROUBLESHOOTING" to confirm that the communication systems are normal.
Front Passenger Side Seat Belt Warning Light Malfunction