Toyota RAV4 manuals

Toyota Sienna Service Manual: Transmitter ID1 Error

Transmitter ID1 Error

DESCRIPTION

The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the air pressure of the tires. The measured values are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. The ECU compares the measured air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the warning light in the combination meter comes on.

When the internal circuit of the tire pressure warning valve and transmitter is malfunctioning, this DTC is output.

Transmitter ID1 Error

HINT: It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output DTC.

INSPECTION PROCEDURE

NOTICE:

1 IDENTIFY TRANSMITTER CORRESPONDING TO DTC

(a) Set the tire pressure to the specified value.

Cold tire inflation pressure

(b) Make sure that the ignition switch is off.

(c) Connect the intelligent tester to the DLC3.

(d) Turn the ignition switch to the ON position.

(e) Display the "TIREPRESS" data for each wheel using the intelligent tester.

(f) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.41 kg/cm2, 5.8 psi) within 30 seconds. If "TIREPRESS" displayed on the tester (ID1 to ID4) does not change, the tire pressure warning valve and transmitter corresponds to the DTC that was detected.

HINT:

TIRE PRESSURE:

HINT: *: It may take about 5 to 6 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (See page TW-42).

(g) Check the DATA LIST.

Result

NOTICE:

(h) When the "TIREPRESS" data (ID1 to ID4) has changed, repeat this procedure to identify the tire pressure warning valve and transmitter that corresponds to a DTC.

(i) When all of the "TIREPRESS" data (ID1 to ID4) have changed, identify the malfunctioning tire pressure warning valve and transmitter using recorded ID numbers and output DTC.

(j) Set the tire pressures to the appropriate specified values.

2 REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

(a) Replace the identified tire pressure warning valve and transmitter with a new one (See page TW-84).

HINT:

3 REGISTRATION OF TRANSMITTER ID

(a) Register the transmitter ID for all wheels (See page TW- 20).

4 PERFORM INITIALIZATION

(a) Perform initialization (See page TW-23).

5 READ VALUE ON INTELLIGENT TESTER

(a) Make sure that the ignition switch is off.

(b) Connect the intelligent tester to the DLC3.

(c) Turn the ignition switch to the ON position.

(d) Select "TIREPRESS" by following the prompts displayed on the intelligent tester.

TIRE PRESSURE:

READ VALUE ON INTELLIGENT TESTER

READ VALUE ON INTELLIGENT TESTER

HINT: *: It may take about 5 to 6 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (See page TW-35).

Result

REPLACE TIRE PRESSURE WARNING ECU (See page TW-87)

No Signal from Transmitter ID1
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