RM35X0E _51 Engine / Hybrid System _078825 STOP AND START _0382334 STOP AND START SYSTEM J

STOP AND START  STOP AND START SYSTEM  Neutral Position Switch Circuit  


DESCRIPTION

for Automatic Transmission:

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

for Manual Transmission:

The neutral position switch detects whether the shift lever is in neutral. When the shift lever in any position other than neutral, stop and start control is prohibited.

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 hereEngine / Hybrid System>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 hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

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

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

for Automatic Transmission:

When the engine stop and start ECU or electromagnetic oil pump is replaced, check the electromagnetic oil pump.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION



PROCEDURE

1.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
for Automatic Transmission A
for Manual Transmission B



A

2.READ VALUE USING GTS (NEUTRAL SWITCH)

B

5.READ VALUE USING GTS (NEUTRAL SWITCH)
2.READ VALUE USING GTS (NEUTRAL SWITCH)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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

Powertrain > Stop and Start > Data List
Tester Display
Neutral Switch
50003 392 202

e.

In accordance with the display on the GTS, read the Data List.

OK:
GTS Display Condition Normal Condition
Neutral Switch Shift lever in P or N ON
Shift lever not in P or N OFF



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE


NG

3.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
3.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
a.

Inspect the park/neutral position switch assembly.

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>PARK / NEUTRAL POSITION SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

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

NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>PARK / NEUTRAL POSITION SWITCH>REMOVAL


4.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.

w/ Entry and Start System:

Disconnect the certification ECU (smart key ECU assembly) connector.


e.

w/o Entry and Start System:

Disconnect the ignition or starter switch assembly connector.


f.

Remove the STARTER 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
N32-21 (STA) - E92-5 (L) Always Below 1 Ω
N32-17 (CLL) - E92-4 (B) Always Below 1 Ω
N32-21 (STA) or E92-5 (L) - Body ground and other terminals Always 10 kΩ or higher
N32-17 (CLL) or E92-4 (B) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.READ VALUE USING GTS (NEUTRAL SWITCH)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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

Powertrain > Stop and Start > Data List
Tester Display
Neutral Switch
50003 392 202

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



Result:
Proceed to
OK
NG



OK

GO TO PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE


NG

6.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - NEUTRAL POSITION SWITCH)
6.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - NEUTRAL POSITION SWITCH)
a.

Disconnect the engine stop and start ECU connector.


b.

Disconnect the neutral position switch connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N32-26 (TMVC) - E17-1 (W1) Always Below 1 Ω
N32-25 (TME2) - E17-3 (F+) Always Below 1 Ω
N32-8 (TMN) - E17-2 (TMN) Always Below 1 Ω
N32-26 (TMVC) or E17-1 (W1) - Body ground and other terminals Always 10 kΩ or higher
N32-25 (TME2) or E17-3 (F+) - Body ground and other terminals Always 10 kΩ or higher
N32-8 (TMN) or E17-2 (TMN) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

7.CHECK ENGINE STOP AND START ECU (TMN TERMINAL VOLTAGE)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK ENGINE STOP AND START ECU (TMN TERMINAL VOLTAGE)
A419453C71
3.25,0.479 3.771,0.792 0.521,0.313 3.667,2.198 3.146,1.333 true 2.844,2.188 3.094,1.229 true 2.677,2.24 3.458,2.438 0.781,0.198 10 false TMN 3.51,2.229 4.167,2.417 0.656,0.188 10 false TME2 3.385,0.552 3.76,0.75 0.375,0.198 10 false N32 0.104,0.073 0.885,0.271 0.781,0.198 10 false *a
*a Component with harness connected
(Engine Stop and Start ECU) 		- -


a.

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

Standard Voltage:
Tester Connection Condition Specified Condition
N32-8 (TMN) - N32-25 (TME2) 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



Result:
Proceed to
OK
NG



OK

GO TO PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE


NG

REPLACE NEUTRAL POSITION SWITCH

Click hereDrivetrain>RC60J (MANUAL TRANSMISSION / TRANSAXLE)>NEUTRAL POSITION SWITCH>REMOVAL