RM3660EC _51 Engine / Hybrid System _080774 STOP AND START _0393362 STOP AND START SYSTEM J

STOP AND START  STOP AND START SYSTEM  Neutral Position Switch Circuit  


DESCRIPTION

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

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 with ECU 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

·

After replacing the engine stop and start ECU assembly, perform learning of the external backup boost converter (eco run vehicle converter assembly).

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



PROCEDURE

1.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

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

Inspect the park/neutral position switch assembly.

Click hereDrivetrain>K313 (CVT)>PARK / NEUTRAL POSITION SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

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

NG

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Click hereDrivetrain>K313 (CVT)>PARK / NEUTRAL POSITION SWITCH>REMOVAL


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 Entry and Start System)


e.

Disconnect the ignition or starter switch assembly connector. (w/o Smart Entry and Start System)


f.

Remove the ST 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
A124-21 (STA) - C62-9 (L) Always Below 1 Ω
A124-17 (CLL) - C62-4 (B) Always Below 1 Ω
A124-21 (STA) or C62-9 (L) - Body ground and other terminals Always 10 kΩ or higher
A124-17 (CLL) or C62-4 (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