Toyota RAV4 (XA40) 2013-2018 Service Manual: 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.
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
Typical enabling conditions
Typical malfunction thresholds
Component operating range
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.
- Warm up the engine.
- Turn the ignition switch off.
- Connect the intelligent tester to the can vim. Then connect the can vim to the dlc3.
- Turn the ignition switch on and turn the tester on.
- Enter the following menus: diagnosis / enhanced obd ii / data list.
- Follow the instructions on the tester and read the data list.
- Check wire harness (park/neutral position switch - battery)
- Disconnect the b26 park/neutral position switch connector.
- Turn the ignition switch on.
- Measure the voltage.
Standard voltage 
- Inspect park/neutral position switch
- Disconnect the b26 park/neutral position switch connector.
- Measure the resistance of the park/neutral position switch when the shift lever is moved to each position.
Standard resistance 
- Check wire harness (ecm - battery and body ground)
- Disconnect the b30 ecm connector.
- Turn the ignition switch on.
- 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.
- Check wire harness (park/neutral position switch - transmission control switch)
- Disconnect the e40 switch connector.
- Turn the ignition switch on.
- Measure the voltage when the shift lever is moved to each position.
Standard voltage 
- Inspect transmission control switch
- Disconnect the e40 switch connector.
- Measure the resistance of the switch when the shift lever is moved to each position.
Standard resistance 
- Check wire harness (transmission control switch - battery and body ground)
- Disconnect the a9 ecm connector.
- Turn the ignition switch on.
- 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:
Luggage compartment features
Cargo hooks
Raise the hook to use.
The cargo hooks are provided for
securing loose items.
WARNING
â– When cargo hooks are not in
use
To avoid injury, always return the
hooks to their stowed positions
when not in use.
Deck board
â– Flipping the deck board
upside down
The deck board can be flipped
...
Data list / active test
Read data list
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.
Connect the intelligent tester (with can vim) to the
dlc3 ...
Air inlet damper control servo motor circuit
Description
The damper servo (air inlet control) sends pulse signals to indicate the
damper position to the air
conditioning amplifier. The air conditioning amplifier activates the motor
(normal or reverse) based on
these signals to move the air inlet control damper to the appropriate pos ...
