| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EEKT |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 10/2019] |
| Title: STOP AND START: STOP AND START SYSTEM: Neutral Position Switch Circuit; 2019 MY RAV4 [11/2018 - 10/2019] | ||
|
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.
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![2019 MY RAV4 [11/2018 - 10/2019]; STOP AND START: STOP AND START SYSTEM: P085012,P085014; Park/Neutral Switch Circuit Short to Battery+](/t3Portal/stylegraphics/info.gif)
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.
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-
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.
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-
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.
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-
When the engine stop and start ECU or oil pump with solenoid assembly is replaced, check the oil pump with solenoid assembly.
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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 |
|
|
2. |
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY |
(a) Inspect the park/neutral position switch assembly.
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| NG |
|
|
|
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 |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|