Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001KNEC
Model Year Start: 2020 Model: RAV4 Prod Date Range: [10/2019 - 10/2023]
Title: STOP AND START: STOP AND START SYSTEM: Neutral Position Switch Circuit; 2020 - 2023 MY RAV4 [10/2019 - 10/2023]

Neutral Position Switch Circuit

DESCRIPTION

The engine stop and start ECU uses the park/neutral position switch assembly installed to the automatic transaxle assembly to detect when the shift lever is in P or N.

WIRING DIAGRAM

Refer to DTC P085012.

Click here 2020 - 2023 MY RAV4 [10/2019 - 10/2023]; STOP AND START: STOP AND START SYSTEM: P085012,P085014; Park/Neutral Switch Circuit Short to Battery

CAUTION / NOTICE / HINT

NOTICE:

  • Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.

    Click here 2020 - 2021 MY RAV4 [10/2019 - 12/2021]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2022 MY RAV4 [12/2021 - 10/2022]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2023 MY RAV4 [10/2022 - 10/2023]; STOP AND START: STOP AND START SYSTEM: REGISTRATION

  • After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.

    Click here 2020 - 2021 MY RAV4 [10/2019 - 12/2021]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2022 MY RAV4 [12/2021 - 10/2022]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2023 MY RAV4 [10/2022 - 10/2023]; STOP AND START: STOP AND START SYSTEM: REGISTRATION

  • After replacing the engine stop and start ECU or airbag ECU assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.

    Click here 2020 - 2021 MY RAV4 [10/2019 - 12/2021]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2022 MY RAV4 [12/2021 - 10/2022]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2023 MY RAV4 [10/2022 - 10/2023]; STOP AND START: STOP AND START SYSTEM: REGISTRATION

  • When the engine stop and start ECU or oil pump with solenoid assembly is replaced, check the oil pump with solenoid assembly.

    Click here 2020 - 2021 MY RAV4 [10/2019 - 12/2021]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2022 MY RAV4 [12/2021 - 10/2022]; STOP AND START: STOP AND START SYSTEM: REGISTRATION 2023 MY RAV4 [10/2022 - 10/2023]; STOP AND START: STOP AND START SYSTEM: REGISTRATION

PROCEDURE

1.

READ VALUE USING TECHSTREAM (NEUTRAL SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Stop and Start / Data List / Neutral Switch.

Powertrain > Stop and Start > Data List

Tester Display

Neutral Switch

(e) In accordance with the display on the Techstream, read the Data List.

OK:

Techstream Display

Condition

Normal Condition

Neutral Switch

Shift lever in P or N

ON

Shift lever not in P or N

OFF
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Inspect the park/neutral position switch assembly.

  • for 2WD:

    Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; UB80E (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: INSPECTION

  • for AWD:

    Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: INSPECTION

NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

  • for 2WD:

    Click here 2020 MY RAV4 [10/2019 - 08/2020]; UB80E (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL 2021 MY RAV4 [08/2020 - 12/2021]; UB80E (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL 2022 MY RAV4 [12/2021 - 10/2022]; UB80E (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL 2023 MY RAV4 [10/2022 - 10/2023]; UB80E (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL

  • for AWD:

    Click here 2020 MY RAV4 [10/2019 - 08/2020]; UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL 2021 MY RAV4 [08/2020 - 12/2021]; UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL 2022 MY RAV4 [12/2021 - 10/2022]; UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL 2023 MY RAV4 [10/2022 - 10/2023]; UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): PARK / NEUTRAL POSITION SWITCH: REMOVAL

OK

3.

CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

(a) Disconnect the engine stop and start ECU connector.

(b) Disconnect the park/neutral position switch assembly connector.

(c) Disconnect the ECM connector.

(d) Disconnect the certification ECU (smart key ECU Assembly) connector. (w/ Smart Key System)

(e) Disconnect the ignition or starter switch assembly connector. (w/o Smart Key System)

(f) Remove the ST NO. 1 relay from the No. 1 engine room relay block and No. 1 junction block assembly.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A34-21 (STA) - C31-9 (L)

Always

Below 1 Ω

A34-17 (CLL) - C31-4 (B)

Always

Below 1 Ω

A34-21 (STA) or C31-9 (L) - Body ground and other terminals

Always

10 kΩ or higher

A34-17 (CLL) or C31-4 (B) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ENGINE STOP AND START ECU 2020 MY RAV4 [10/2019 - 08/2020]; STOP AND START: ENGINE STOP AND START ECU: REMOVAL 2021 - 2022 MY RAV4 [08/2020 - 10/2022]; STOP AND START: ENGINE STOP AND START ECU: REMOVAL 2023 MY RAV4 [10/2022 - 10/2023]; STOP AND START: ENGINE STOP AND START ECU: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR