Toyota Sequoia (2005). Manual - part 879

I18620

1

2

I12038

Wire Harness Side:

–

BODY ELECTRICAL

WIRELESS DOOR LOCK CONTROL SYSTEM

BE–101

3505

HINT:

When the temperature of the battery is low, the judge can
not be made correctly.
When the outcome of the test is less than 2.1 V, conduct
the test again after leaving the battery in the place at 18

°

C for more than 30 minutes.

By auto power off function, the voltage becomes no load
voltage (more than 2.5 V) condition after 20 seconds from
the switch was pressed. 
Make sure to read the voltage before of it.

High voltage might be shown once or twice after leaving
the battery, judge should be made with the voltage shown
at the 3rd time or later.

(g)

Disconnect the lead.

(h)

Set the battery (lithium battery) in the transmitter.

(i)

Install the cover, so that the rubber cover is not distorted
or slipped off.

3.

INSPECT WIRELESS DOOR LOCK BUZZER RESIS-
TANCE

Connect the positive (+) lead from the ohmmeter to terminal 1
and the negative (–) lead to terminal 2, and measure resistance
of approx. 1 k

Ω

.

If resistance is not as specified, replace the buzzer.

4.

Connector disconnected:
INSPECT WIRELESS DOOR LOCK CONTROL RE-
CEIVER CIRCUIT

Disconnect the connector from the receiver and inspect the
connector on the wire harness side, as shown.

Tester connection

Condition

Specified condition

1 – Ground

Always

Continuity

5 – Ground

Always

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.

I18617

From Back Side:

5 – 1

BE–102

–

BODY ELECTRICAL

WIRELESS DOOR LOCK CONTROL SYSTEM

3506

5.

Connector connected:
INSPECT WIRELESS DOOR LOCK CONTROL RE-
CEIVER CIRCUIT

Connect the wire harness side connector to the receiver and in-
spect the wire harness side connector from the back side, as
shown.

Tester connection

Condition

Specified condition

3 – Ground

Normal mode

Approx. 10 – 14 V

2 – Ground

Ignition switch position OFF,

Key removed,

Transmitter ON

Approx. 6 – 7 V

If circuit is as specified, replace the receiver.
If the circuit is not as specified, inspect the circuits connected
to other parts.

BE267–05

N30017

N13468

–

BODY ELECTRICAL

WIRELESS DOOR LOCK CONTROL SYSTEM

BE–103

3507

REPLACEMENT

1.

REPLACE TRANSMITTER (LITHIUM) BATTERY

NOTICE:
Great caution should be taken for handling each compo-
nent as they are precision electronic components.
(a)

Using a screwdriver, remove the cover.

NOTICE:
Do not pry out the cover forcibly.
HINT:
Push the cover with a finger as shown in the illustration, so that
there becomes clearance, then pry out the cover from that
clearance.
(b)

Remove the transmitter.

(c)

Remove the battery (lithium battery).

NOTICE:



Do not push the terminals with a finger.



If prying up the battery (lithium battery) forcibly to re-
move, the terminals are deformed.

(d)

Install a battery (lithium battery) as shown in the illustra-
tion.

NOTICE:
Face the battery upward. Take care not to deform the termi-
nals.
(e)

Check that the rubber cover is not distorted or slipped off,
and install the cover.

BE–104

–

BODY ELECTRICAL

WIRELESS DOOR LOCK CONTROL SYSTEM

3508

2.

REPLACE DOOR CONTROL RECEIVER AND TRANS-
MITTER

NOTICE:
When replacing the door control receiver and transmitter,
registration of recognition code is necessary because they
are provided as single components.
(a)

Select one of the operations mode should be performed
from the following modes.



Add mode



Rewrite mode



Prohibition mode



Confirmation mode

HINT:



The add mode is used to retain codes already registered
while you register new recognition codes. This mode is
used when adding a transmitter. However, if the number
of registered codes exceeds 4 codes, previously regis-
tered codes are correspondingly erased in order, starting
from the first registered code.



The rewrite mode is used to erase all previously regis-
tered codes and register only new recognition codes.



The prohibition mode is used to erase all registered codes
and cancels the wireless door lock function. Use this
mode when the transmitter is lost.



The confirmation mode is for confirming how many recog-
nition codes are already registered before you register
additional recognition codes.

(b)

Follow the chart on the following pages to register the
transmitter recognition code at the wireless door lock con-
trol receiver.

HINT:



When procedure is out of the specified, the operation re-
turns to normal operation.



Maximum 4 recognition codes can be registered.