Toyota RAV4 manuals

Toyota Sienna Service Manual: Perform signal check

Perform signal check

HINT:

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

(b) Connect the intelligent tester to DLC3.

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

(d) Select the SIGNAL CHECK on the intelligent tester.

HINT: Every time the test mode DTC clear conditions are satisfied, the tire pressure warning light comes on for 1 second. Then, the tire pressure warning light blinks at 0.125-second intervals.

Perform signal check

(e) Drive the vehicle at 12 mph (20 km/h) or more for 10 seconds or more to check the vehicle speed signal (C2191/91).

(f) Loosen the valve core and rapidly reduce the pressure (at least 40 kPa (0.41 kg/cm2, 5.8 psi) within 30 seconds or more) to check the transmitter data (C2181/81 to C2184/84).

HINT: The transmitter ID can be transmitted by rapidly reducing the tire pressure.

(g) Check that the tire pressure warning system test mode DTCs are erased.

(h) Check the tire pressure warning reset switch.

(1) Press the tire pressure warning reset switch.

(2) Check the tire pressure warning indicator light.

(i) Result

HINT: After the signal check is completed, check for a signal check DTC to confirm the system status

(j) End of SIGNAL CHECK

After completing the test mode (SIGNAL CHECK), turn the ignition switch off and disconnect the tester.

DTC of SIGNAL CHECK (TEST DIAGNOSIS) function: If a trouble code is displayed during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to the relevant page listed under respective "DTC No." in the chart.

Enter test mode
HINT: Operation of the tire pressure warning reset switch can be checked in TEST MODE. During TEST MODE, the system is not initialized by pushing the tire pressure warning reset switch. The ...

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 ...

Other materials:

ECM Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode "Engine" is not displayed on the "Communication Bus Check" screen of the intelligent tester Applies to "ECM Communication Stop Mode" in ...

Communication Error of Yaw Rate Sensor
DTC U0123 Communication Error of Yaw Rate Sensor DESCRIPTION This circuit detects the yaw rate of the vehicle and transmits its signal to the skid control ECU and distance control ECU. DTC No. DTC Detection Condition Trouble Area U0123 While the dynamic ...

Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Turn the engine switch to the “LOCK” position (vehicles without a smart key system) or off (vehicles with a smart key system). Open the fuse box cover. ...

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