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

STOP AND START  STOP AND START SYSTEM  P085011  Park/Neutral Switch Circuit Short to Ground  P085015  Park/Neutral Switch Circuit Short to Battery or Open  


DESCRIPTION

HINT:

This DTC is applicable to Manual Transmission models only.


The engine stop and start ECU detects a malfunction by comparing the shift position signal with the neutral position switch signal input state. If a malfunction is detected, the engine stop and start ECU blinks the stop and start cancel indicator light, prohibits the stop and start control and stores DTC P085011 or P085015.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory Note
P085011 Park/Neutral Switch Circuit Short to Ground The following condition continues for 1 second or more (1 trip detection logic):
·

Open or short in neutral position switch circuit.


·

Wire harness or connector

·

Neutral position switch

·

Engine stop and start ECU


Blinks DTC stored SAE Code: P0850
P085015 Park/Neutral Switch Circuit Short to Battery or Open The following condition continues for 1 second or more (1 trip detection logic):
·

Open or short in neutral position switch circuit.


·

Wire harness or connector

·

Neutral position switch

·

Engine stop and start ECU


Blinks DTC stored SAE Code: P0850

WIRING DIAGRAM

A382306E12
0.979,2.052 1.292,2.25 0.313,0.198 10 false IC 2.333,1.104 2.646,1.302 0.313,0.198 10 false W1 2.25,1.958 2.615,2.156 0.365,0.198 10 false TMN 2.365,2.844 2.677,3.042 0.313,0.198 10 false F+ 0.792,3.469 1.104,3.667 0.313,0.198 10 false E17 0.792,3.625 2.5,3.906 1.708,0.281 10 false Neutral Position Switch 2.677,1.104 2.99,1.302 0.313,0.198 10 false 1 2.688,1.958 3,2.156 0.313,0.198 10 false 2 2.677,2.844 2.99,3.042 0.313,0.198 10 false 3 4.865,1.104 5.177,1.302 0.313,0.198 10 false 26 4.948,1.969 5.26,2.167 0.313,0.198 10 false 8 4.885,2.854 5.198,3.052 0.313,0.198 10 false 25 5.177,1.104 5.802,1.302 0.625,0.198 10 false TMVC 5.177,1.979 5.823,2.219 0.646,0.24 10 false TMN 5.177,2.865 5.615,3.073 0.438,0.208 10 false TME2 5.167,3.771 5.604,3.979 0.438,0.208 10 false N32 5.167,3.927 6.927,4.323 1.76,0.396 10 false Engine Stop and Start ECU 6.125,0.854 6.563,1.063 0.438,0.208 10 false 5 V 6.083,1.656 6.708,1.854 0.625,0.198 10 false 1 kΩ

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



HINT:
·

Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>FREEZE FRAME DATA

·

DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>DTC CHECK / CLEAR



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.

Read the value when the shift lever is in neutral and any other position.

OK:
Tester Display Condition Normal Condition
Neutral Switch Shift lever in neutral ON
Shift lever in any position other than neutral OFF



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

2.CHECK ENGINE STOP AND START ECU (TMN TERMINAL VOLTAGE)
2.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

REPLACE ENGINE STOP AND START ECU

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


NG

3.CHECK HARNESS AND CONNECTOR
3.CHECK HARNESS AND CONNECTOR
A426764C05
0.26,1.104 0.667,1.354 0.406,0.25 0.594,1.708 1.385,1.167 true 2.646,1.708 1.906,1.198 true 1.906,1.906 1.688,1.188 true 0.208,0.167 0.583,0.438 0.375,0.271 10 false *a 0.344,1.146 0.719,1.417 0.375,0.271 10 false E17 2.708,1.708 3.083,1.979 0.375,0.271 10 false F+ 1.865,1.917 2.396,2.115 0.531,0.198 10 false TMN 0.479,1.74 0.917,1.969 0.438,0.229 10 false W1
*a Front view of wire harness connector
(to Neutral Position Switch)


HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


a.

Disconnect the neutral position switch connector.


b.

Turn the ignition switch to ON.


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
E17-1 (W1) - Body ground Ignition switch ON 4.5 to 5.5 V
E17-2 (TMN) - Body ground Ignition switch ON 3.0 to 5.0 V



d.

Turn the ignition switch off and wait for at least 30 seconds.


e.

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

Standard Resistance:
Tester Connection Condition Specified Condition
E17-1 (W1) - E17-2 (TMN) Ignition switch off 0.95 to 1.05 kΩ
E17-3 (F+) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE NEUTRAL POSITION SWITCH

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


NG

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

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