Toyota RAV4 manuals

Toyota RAV4 Service Manual: Transmission range sensor circuit malfunction (prndl input)

Toyota RAV4 Service Manual / U140f automatic transaxle / Automatic transaxle system / Diagnostic trouble code chart / Transmission range sensor circuit malfunction (prndl input)

Toyota RAV4. Transmission range sensor circuit malfunction (prndl input)


Description

The park/neutral position (pnp) switch detects the shift lever position and sends signals to the ecm.

Toyota RAV4. Transmission range sensor circuit malfunction (prndl input)


Monitor description

These dtcs indicate a problem with the park/neutral position switch and the wire harness in the park/ neutral position switch circuit.

The park/neutral position switch detects the shift lever position and sends a signal to the ecm.

For security, the park/neutral position switch detects the shift lever position so that the engine can be started only when the shift lever is on p or n.

The park/neutral position switch sends a signal to the ecm according to the shift lever position (r, d, 3, 2 or l).

The ecm determines that there is a problem with the switch or related parts if it receives more than 1 position signal simultaneously. The ecm will illuminate the mil and store the dtc.

Monitor strategy

Toyota RAV4. Monitor strategy


Toyota RAV4. Monitor strategy


Typical enabling conditions

Toyota RAV4. Typical enabling conditions


Typical malfunction thresholds

Toyota RAV4. Typical malfunction thresholds


Component operating range

Toyota RAV4. Component operating range


Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

Hint:

Using the intelligent tester's data list allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the data list early in troubleshooting is one way to save time.

Notice:

In the table below, the values listed under "normal condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

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

Toyota RAV4. Inspection procedure


Toyota RAV4. Inspection procedure


  1. Check wire harness (park/neutral position switch - battery)

Toyota RAV4. Check wire harness (park/neutral position switch - battery)


  1. Disconnect the b26 park/neutral position switch connector.
  2. Turn the ignition switch on.
  3. Measure the voltage.

Standard voltage




  1. Inspect park/neutral position switch

  1. Disconnect the b26 park/neutral position switch connector.
  2. Measure the resistance of the park/neutral position switch when the shift lever is moved to each position.

Standard resistance


Toyota RAV4. Inspect park/neutral position switch




  1. Check wire harness (ecm - battery and body ground)

  1. Disconnect the b30 ecm connector.
  2. Turn the ignition switch on.
  3. Measure the voltage of the wire harness side connector.

Standard voltage


Toyota RAV4. Check wire harness (ecm - battery and body ground)


Hint:

*: The voltage will drop slightly due to the illumination of the back-up light.



  1. Check wire harness (park/neutral position switch - transmission control switch)

Toyota RAV4. Check wire harness (park/neutral position switch - transmission control switch)


  1. Disconnect the e40 switch connector.
  2. Turn the ignition switch on.
  3. Measure the voltage when the shift lever is moved to each position.

Standard voltage




  1. Inspect transmission control switch

Toyota RAV4. Inspect transmission control switch


  1. Disconnect the e40 switch connector.
  2. Measure the resistance of the switch when the shift lever is moved to each position.

Standard resistance




  1. Check wire harness (transmission control switch - battery and body ground)

Toyota RAV4. Check wire harness (transmission control switch - battery and body ground)


  1. Disconnect the a9 ecm connector.
  2. Turn the ignition switch on.
  3. Measure the voltage of the wire harness side connector.

Standard voltage


Hint:

*: The voltage will drop slightly due to the illumination of the back-up light.



Diagnostic trouble code chart
If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. Hint: *1: "Comes on" means the malfunction indicator lamp (mil) ...

Transmission fluid temperature sensor "A" circuit
Description The automatic transmission fluid (atf) temperature sensor converts the atf temperature into a resistance value which is input into the ecm. The ecm applies a voltage to the temp ...

Other materials:

Low battery positive voltage
Description When there is an abnormality in the power supply circuit of the brake actuator (skid control ecu), the skid control ecu sets a dtc and the operation is prohibited by the fail-safe function. This dtc is set when the voltage supplied to terminal ig1 is outside the dtc detection ...

Disassembly
Caution: Wear protective gloves. Sharp areas on the seat frame (with adjuster) may injure your hands. Remove reclining power seat switch knob Using a screwdriver, detach the knob. Hint: Tape the screwdriver tip before use. Remove slide and vertical power seat switch knob ...

Radiator
Components On-vehicle inspection Check radiator reservoir cap subassembly Measure the valve opening pressure. If there are water stains or foreign matter on oring 1, clean it with water and finger scouring. Check that o-ring 1 is not deformed, cracked or sw ...

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