Toyota RAV4 manuals

Toyota Sienna Service Manual: Fail-safe chart

1. FAIL-SAFE

This function minimizes the loss of the ECT functions when any malfunction occurs in a sensor or solenoid.

(a) ATF (Automatic Transmission Fluid) temperature sensor: When the ATF temperature sensor has a malfunction, 5th upshift is prohibited.

(b) Counter gear speed sensor NC (Speed sensor NC): When the counter gear speed sensor has a malfunction, 5th upshift is prohibited.

(c) Shift solenoid valve DSL: When the solenoid valve DSL has a malfunction, the current to the solenoid valve is stopped.

This stops lock-up control, then fuel economy decreases.

(d) Shift solenoid valve SL1, SL2, SL3 and S4: Fail safe function: If either of the shift solenoid valve circuits develops an open or short, the ECM turns the other shift solenoid "ON" and "OFF" in order to shift into the gear positions shown in the table below.

Manual shifting as shown in the following table must be done (In case of a short circuit, the ECM stops sending the current to the short circuited solenoid).

Even if starting the engine in the fail-safe mode, the gear position remains in the same position.

HINT: FL: Flex Lock-up

 FAIL-SAFE

 FAIL-SAFE

Dtc clear
(A) when using the obd ii scan tool or intelligent tester: clearing the dtcs. (1) Connect the intelligent tester together with the CAN VIM (controller area network vehicle interface module) to the ...

Data list / active test
1. DATA LIST HINT: Using the intelligent tester to read the DATA LIST allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-i ...

Other materials:

Problem symptoms table
HINT: Proceed to troubleshooting of each circuit in the table below. 1. HEADLIGHT AND TAIL LIGHT SYSTEM 2. AUTOMATIC LIGHT CONTROL SYSTEM 3. LIGHT AUTO TURN OFF SYSTEM 4. FOG LIGHT SYSTEM 5. TURN SIGNAL AND HAZARD WARNING SYSTEM 6. ILLUMINATED ENTRY SYSTEM 7. OTHE ...

Throttle Actuator Control Motor Current Range / Performance
DTC P2118 Throttle Actuator Control Motor Current Range / Performance DESCRIPTION The ETCS (Electronic Throttle Control System) has a dedicated power supply circuit. The voltage (+BM) is monitored and when it is low (less than 4 V), the ECM determines that there is a malfunction in the ETCS ...

Rear Room Temperature Sensor Circuit
DESCRIPTION This sensor detects the rear cabin temperature that is used as the basis for temperature control and sends a signal to the A/C amplifier. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER (a) Connect the intelligent tester to the DLC3. (b) Turn the ign ...

В© 2011-2024 Copyright www.tsienna.net