Toyota RAV4 manuals

Toyota Sienna Service Manual: Tire Pressure Warning Light Circuit

DESCRIPTION

If the ECU detects trouble, the tire pressure warning light blinks (comes on after blinking for 1 minute) and tire pressure monitor is cancelled at the same time. At this time, the ECU records a DTC in the memory.

Connect terminals TC and CG of DLC3 to make the tire pressure warning light blink and output the DTC.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE: When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the intelligent tester and write them down before removal.

It is necessary to perform initialization (See page TW-23) after registration (See page TW-20) of the transmitter IDs into the tire pressure warning ECU, after the ECU has been replaced.

HINT: This procedure must be performed according to the PROBLEM SYMPTOMS TABLE.

1 CHECK HARNESS AND CONNECTOR (COMBINATION METER - TIRE PRESSURE WARNING ECU)

CHECK HARNESS AND CONNECTOR (COMBINATION METER - TIRE PRESSURE WARNING ECU)

(a) Disconnect the C10 combination meter connector.

(b) Disconnect the T15 tire pressure warning ECU connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance

2 INSPECT COMBINATION METER

INSPECT COMBINATION METER

(a) Disconnect the connector from the tire pressure warning ECU.

(b) Turn the ignition switch to the ON position, and check if the tire pressure warning light illuminates.

Result

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

Tire Pressure Warning Reset Switch Circuit
DESCRIPTION The ECU enters the initialization mode and performs initialization automatically, when the tire pressure warning ECU receives the signal from the tire pressure warning reset switch. If ...

ECU Power Source Circuit
DESCRIPTION This is the power source for the tire pressure warning ECU. WIRING DIAGRAM INSPECTION PROCEDURE NOTICE: When replacing the tire pressure warning ECU, read the transmitter IDs st ...

Other materials:

Data list / active test
1. DATA LIST (a) While the intelligent tester is connected to the DLC3 with the ignition switch in the ON position, the ABS data list can be displayed. Follow the prompts on the tester screen to access the DATA LIST. 2. ACTIVE TEST HINT: Performing the ACTIVE TEST using the intelligent te ...

Definition of terms
Term Definition Monitor description Description of what the ecm monitors and how it detects malfunctions (monitoring purpose and its details). Related dtcs Diagnostic codeV Typical enabling condition Preconditions that allow the ecm to detect malfunc ...

Reassembly
1. INSTALL REAR SEAT STAY SUB-ASSEMBLY  Install the seat stay sub-assembly with the nut. Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf) 2. INSTALL NO. 2 SEAT CUSHION SPRING ASSEMBLY RH 3. INSTALL LOCUS CABLE RH  Install the locus cable RH with the nut. Torque: 5.5 N*m (56 kgf*cm, ...

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