Toyota Tacoma 2015-2018 Service Manual: Neutral Position Switch Circuit
DESCRIPTION
The ECM uses the neutral position switch installed to the manual transmission assembly to detect when the transmission is in the neutral position.
WIRING DIAGRAM
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 / Engine / Data List / Neutral Switch.
(e) Read the value when the shift lever is in neutral and any other position
OK:
|
Tester Display |
Condition |
Normal Condition |
|---|---|---|
|
Neutral Position Switch |
Shift lever is in neutral |
ON |
|
Shift lever is in any position other than neutral |
OFF |
| OK | .gif) |
USE SIMULATION METHOD TO CHECK |
|
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|
2. |
CHECK TERMINAL VOLTAGE (VC) |
(a) Turn the ignition switch to ON.
(b) Measure the voltage according to the value(s) in the table below.
|
*a |
Component with harness connected (ECM) |
- |
- |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E10-23 (VC) - E9-23 (ETHW) |
Ignition switch ON |
4.8 to 5.2 V |
| NG | |
GO TO SFI SYSTEM |
|
|
3. |
CHECK HARNESS AND CONNECTOR (ECM - NEUTRAL POSITION SWITCH) |
(a) Disconnect the E9, E10 and E11 ECM connectors.
(b) Disconnect the N37 neutral position switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E10-23 (VC) - N37-1 (W1) |
Always |
Below 1 Ω |
|
E11-22 (NPSW) - N37-2 (TMN) |
Always |
Below 1 Ω |
|
E9-23 (ETHW) - N37-3 (F+) |
Always |
Below 1 Ω |
|
E10-23 (VC) or N37-1 (W1) - Body ground |
Always |
10 kΩ or higher |
|
E11-22 (NPSW) or N37-2 (TMN) - Body ground |
Always |
10 kΩ or higher |
|
E9-23 (ETHW) or N37-3 (F+) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK TERMINAL VOLTAGE (NPSW) |
(a) Measure the voltage according to the value(s) in the table below.
|
*a |
Component with harness connected (ECM) |
- |
- |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E11-22 (NPSW) - E9-23 (ETHW) |
Ignition switch ON, shift lever in neutral |
2.7 to 4.3 V |
|
Ignition switch ON, shift lever in any position other than neutral |
0.7 to 1.9 V |
| OK | |
REPLACE ECM |
|
|
5. |
REPLACE NEUTRAL POSITION SWITCH |
(a) Replace the neutral position switch.
Click here .gif)
|
|
6. |
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 / Engine / Data List / Neutral Switch.
(e) Read the value when the shift lever is in neutral and any other position
OK:
|
Tester Display |
Condition |
Normal Condition |
|---|---|---|
|
Neutral Switch |
Shift lever is in neutral |
ON |
|
Shift lever is in any position other than neutral |
OFF |
| OK | |
END |
| NG | |
REPLACE ECM |
Cruise SET Indicator Light Circuit
DESCRIPTION
The ECM illuminates the cruise control SET indicator by sending indicator output
demand signals to the combination meter assembly via CAN communication. The cruise
control SET indicat ...
Other materials:
Ignition Hold Monitor Malfunction (B2271)
DESCRIPTION
This DTC is stored when a malfunction in the IG circuit or IG hold circuit in
the certification ECU (smart key ECU assembly) is detected.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal,
the power source mode returns to the state it was in ...
Neutral Position Switch
Components
COMPONENTS
ILLUSTRATION
*1
NEUTRAL POSITION SWITCH
*2
GASKET
N*m (kgf*cm, ft.*lbf): Specified torque
●
Non-reusable part
Installation
INSTALLATION
PROCEDURE
1. INSTALL NEUTR ...
Symbols used in illustrations
The symbol of a circle with a slash
through it means “Do not”, “Do not do this”, or “Do not let this happen”.
Arrows indicating operations
Indicates the action (pushing, turning,
etc.) used to operate switches and other devices.
Indicates the outcome of an operation
(e.g. a ...