Toyota RAV4 manuals

Toyota RAV4 Service Manual: Pressure control solenoid "B" performance (shift solenoid valve sl2)

Toyota RAV4 Service Manual / U140f automatic transaxle / Automatic transaxle system / Diagnostic trouble code chart / Pressure control solenoid "B" performance (shift solenoid valve sl2)

Toyota RAV4. Pressure control solenoid "b" performance (shift solenoid valve sl2)


Description

The ecm uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear).

Then the ecm compares the actual gear with the shift schedule in the ecm memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transaxle (clutch, brake, gear, etc.).

Toyota RAV4. Pressure control solenoid "b" performance (shift solenoid valve sl2)


Monitor description

This dtc indicates a stuck on malfunction or stuck off malfunction of the shift solenoid valve sl2.

The ecm commands gear shifts by turning the shift solenoid valves on/off. When the gear position commanded by the ecm and the actual gear position are not the same, the ecm illuminates the mil and stores the dtc.

Monitor strategy

Toyota RAV4. Monitor strategy


Typical enabling conditions

Toyota RAV4. Typical enabling conditio


Toyota RAV4. Typical enabling conditio


Typical malfunction thresholds

Either of the following conditions is met: off malfunction or on malfunction

2 Detections are necessary per driving cycle: 1st detection: temporary flag on

2Nd detection: pending fault code on

Toyota RAV4. Typical malfunction thresholds


Inspection procedure

Hint:

Performing the intelligent tester's active test allows relay, vsv, actuator and other items to be operated without removing any parts. Performing the active test early in troubleshooting is one way to save time.

  1. The data list can be displayed during the active test.
  2. Warm up the engine.
  3. Turn the ignition switch off.
  4. Connect the intelligent tester to the can vim. Then connect the can vim to the dlc3.
  5. Turn the ignition switch on and turn the tester on.
  6. Enter the following menus: diagnosis / enhanced obd ii / active test.
  7. Follow the instructions on the tester and perform the active test.

Hint:

While driving, the shift position can be forcibly changed with the tester.

Comparing the shift position commanded by the active test with the actual shift position enables you to confirm the problem (see page ax-31).

Toyota RAV4. Inspection procedure


Hint:

  1. Check other dtc output (in addition to dtc p0776)

  1. Connect the intelligent tester to the can vim. Then connect the can vim to the dlc3.
  2. Turn the ignition switch on and turn the tester on.
  3. Enter the following menus: diagnosis / enhanced obd ii / dtc info / current codes.
  4. Read the dtcs using the tester.

Result


Hint:

If any other codes besides p0776 are output, perform troubleshooting for those dtcs first.



  1. Inspect shift solenoid valve sl2

Toyota RAV4. Inspect shift solenoid valve sl2


  1. Remove the shift solenoid valve sl2.
  2. Measure the resistance of the solenoid valve.

Standard resistance: 5.0 To 5.6 Ùat 20°c (68°f)

  1. Connect the battery's positive (+) lead with a 21 w bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating noise.

Ok: valve moves and makes operating noise.



  1. Inspect transmission valve body assembly

  1. Check the transmission valve body assembly.

Ok: there are no foreign objects on each valve.



  1. Inspect torque converter clutch assembly

  1. Check the torque converter clutch assembly (see page ax-153).

Ok: the torque converter clutch operates normally.



Repair or replace automatic transaxle assembly

Shift solenoid "d" performance (shift solenoid valve s4)
System description The ecm uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear). Then the ecm compares the a ...

Pressure control solenoid "b" electrical (shift solenoid valve sl2)
Description Shifting from 1st to o/d is performed in combination with the on and off operation of the shift solenoid valves sl1 and sl2, which are controlled by the ecm. If an open or short ci ...

Other materials:

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Tire and wheel system
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Diagnosis system
Description When troubleshooting obd ii (on-board diagnostics) vehicles, the intelligent tester (complying with sae j1987) must be connected to the dlc3 (data link connector 3) of the vehicle. Various data in the vehicle's ecm (engine control module) can be then read. Obd ii regulations ...

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