RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0393969 SFI SYSTEM C

NR Series ENGINE CONTROL  SFI SYSTEM  P061512  Starter Relay Circuit Short to Battery  


DESCRIPTION

While the engine is being cranked, positive battery voltage is applied to terminal STA of the ECM. If the ECM detects the starter control (STA) signal while the vehicle is being driven, it determines that there is a malfunction in the STA circuit. The ECM then illuminates the MIL and stores the DTC.

This monitor runs when the vehicle is driven at 20 km/h (12.43 mph) or more for 20 seconds or more.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P061512 Starter Relay Circuit Short to Battery All of the following conditions are met, and battery voltage of 10.5 V or higher is applied to the ECM for 20 seconds (1 trip detection logic):

(a) The vehicle speed is 20 km/h (12.43 mph) or more.

(b) The engine speed is 1000 rpm or higher.

(c) The STA signal is on.


·

Park/Neutral position switch

·

ST relay

·

Starter signal circuit

·

Engine stop and start ECU

·

ECM


Comes on DTC stored SAE Code: P0617

MONITOR DESCRIPTION

If the ECM detects the starter control (STA) signal for 20 seconds or more while the vehicle is being driven with an engine speed of 1000 rpm or more at a vehicle speed of 20 km/h (12 mph) or more, it determines that there is a malfunction in the STA circuit, illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

HINT:
·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR



A428845E05
1.229,1.979 1.656,2.198 0.427,0.219 10 false Idling 0.396,2.26 1.604,2.583 1.208,0.323 10 false Ignition Switch ON 1.063,0.865 1.635,1.073 0.573,0.208 10 false 24 km/h 2.396,2.854 3.083,3.167 0.688,0.313 10 false 5 seconds or more 3.594,2.938 4.865,3.104 1.271,0.167 10 false 20 seconds or more 2.01,2.333 2.302,2.552 0.292,0.219 10 false [A] 2.615,2.125 2.823,2.302 0.208,0.177 10 false [B] 4.063,0.458 4.292,0.625 0.229,0.167 10 false [C] 4.885,3.333 5.115,3.5 0.229,0.167 10 false [D] 1.24,0.26 2.354,0.531 1.115,0.271 10 false Vehicle Speed 5.344,2.833 6.458,3.104 1.115,0.271 10 false Time

1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

5.

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

6.

Turn the ignition switch to ON [A].

7.

Turn the GTS on.

8.

Start the engine.

9.

Idle the engine for 5 seconds or more [B].

10.

Drive the vehicle at a speed of 24 km/h (15 mph) or more for 20 seconds or more [C].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


11.

Enter the following menus: Powertrain / Engine / Trouble Codes [D].

12.

Read the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



13.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

14.

Input the DTC: P061512.

15.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE, perform the Confirmation Driving Pattern and check the DTC judgment result again.

·

[A] to [D]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.




WIRING DIAGRAM

A468508E01
1.208,0.521 1.521,0.719 0.313,0.198 10 false NE 1.115,0.896 1.729,1.094 0.615,0.198 10 false STA 1.135,1.281 1.594,1.479 0.458,0.198 10 false CLL 0.177,1.74 0.635,1.938 0.458,0.198 10 false A124 0.156,1.906 3.979,2.104 3.823,0.198 10 false Engine Stop and Start ECU 1.479,0.438 1.792,0.635 0.313,0.198 10 false 10 1.49,0.813 1.802,1.01 0.313,0.198 10 false 21 1.479,1.188 1.792,1.385 0.313,0.198 10 false 17 5.74,0.438 6.052,0.635 0.313,0.198 10 false 30 5.74,0.823 6.052,1.021 0.313,0.198 10 false 29 5.74,1.198 6.052,1.396 0.313,0.198 10 false 57 5.958,0.542 6.563,0.771 0.604,0.229 10 false NEO 5.958,0.917 6.417,1.115 0.458,0.198 10 false STA 5.958,1.281 6.417,1.479 0.458,0.198 10 false NSW 6.083,1.583 6.573,1.781 0.49,0.198 10 false A46 6.406,1.583 6.865,1.781 0.458,0.198 10 false ECM 1.198,2.958 1.51,3.156 0.313,0.198 10 false NE 1.125,3.438 1.74,3.635 0.615,0.198 10 false STA 1.042,3.917 1.5,4.115 0.458,0.198 10 false STAR 0.198,4.177 0.656,4.375 0.458,0.198 10 false O62 0.188,4.344 1.729,4.781 1.542,0.438 10 false Certification ECU (Smart Key ECU Assembly) 3.5,3.844 3.656,4.042 0.156,0.198 10 false 4 4.51,3.844 4.667,4.042 0.156,0.198 10 false 9 3.271,4.094 3.583,4.292 0.313,0.198 10 false C62 3.281,4.281 5.083,4.781 1.802,0.5 10 false Park/Neutral Position Switch Assembly 3.656,3.844 3.813,4.042 0.156,0.198 10 false B 4.333,3.844 4.49,4.042 0.156,0.198 10 false L 2.458,7.188 3.688,7.385 1.229,0.198 10 false ST 1.219,6.656 2.448,6.854 1.229,0.198 10 false ST 0.594,7.844 1.667,8.042 1.073,0.198 10 false Battery 3.677,5.938 3.99,6.135 0.313,0.198 10 false C87 3.917,6.24 6.365,6.438 2.448,0.198 10 false Starter Assembly 4.031,5.938 4.49,6.135 0.458,0.198 10 false SL1 3.771,5.729 3.927,5.927 0.156,0.198 10 false 2 1.479,2.865 1.792,3.063 0.313,0.198 10 false 21 1.49,3.365 1.646,3.563 0.156,0.198 10 false 1 1.49,3.802 1.646,4 0.156,0.198 10 false 2 2.146,6.406 2.302,6.604 0.156,0.198 10 false 5 2.885,6.406 3.042,6.604 0.156,0.198 10 false 3 2.896,6.802 3.135,7.083 0.24,0.281 10 false 1 2.135,6.802 2.292,7 0.156,0.198 10 false 2 0.458,7.073 1.531,7.271 1.073,0.198 10 false BATT-MAIN 3.635,5.333 4.063,5.531 0.427,0.198 10 false C104 4.031,5.323 4.49,5.521 0.458,0.198 10 false B 3.771,5.094 3.927,5.292 0.156,0.198 10 false 1

CAUTION / NOTICE / HINT

NOTICE:

When the engine stop and start ECU is replaced, it is necessary to read the number of starter operations before replacement, and to store this number in the new engine stop and start ECU.

Moreover, initialization/learning of the air conditioning information and initialization/learning of the deceleration sensor 0 point are also required.

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


HINT:

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.


PROCEDURE

1.READ VALUE USING GTS (STARTER SW)
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 / Engine / Data List / Starter SW.

Powertrain > Engine > Data List
Tester Display
Starter SW
50003 372 11

e.

According to the display on the GTS, read the Data List.

Standard:
Condition Starter SW
Ignition switch ON OFF



f.

According to the display on the GTS, read the Data List while the vehicle is being driven with an engine speed of 1000 rpm or more at a vehicle speed of 20 km/h (12 mph) or more.

Standard:
Condition Starter SW
Driving at 20 km/h (12.43 mph) or more (engine speed 1000 rpm or more) OFF



Result:
Proceed to
OK
NG


HINT:
·

If the result of either of the above is not as specified, proceed to the next step with the ignition switch ON, GTS connected and Data List item "Starter SW"selected.

·

If the starter assembly operates continuously when the ignition switch is turned to ON, proceed to the next step without reading the Data List item "Starter SW".




OK

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


NG

2.INSPECT STARTER RELAY ASSEMBLY (CHECK FOR SHORT CIRCUIT)
2.INSPECT STARTER RELAY ASSEMBLY (CHECK FOR SHORT CIRCUIT)
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 / Engine / Data List / Starter SW.

Powertrain > Engine > Data List
Tester Display
Starter SW
50003 372 11

e.

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.


f.

According to the display on the GTS, read the Data List.

Result:
Result Proceed to
The Data List item "Starter SW" does not change from ON A
The Data List item "Starter SW" changes from ON to OFF B


HINT:
·

When the result of the above inspection is "The Data List item "Starter SW" does not change from ON", the ST relay is normal.

·

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.





A

3.CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)

B

REPLACE STARTER RELAY ASSEMBLY

3.CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)
A426617C01
2.24,0.958 2.552,1.156 0.313,0.198 10 false *2 0.104,0.052 0.417,0.25 0.313,0.198 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
*2 ST Relay


HINT:

The purpose of this step is to check for ST relay terminal voltage under abnormal conditions.


a.

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.


b.

Turn the ignition switch to ON.


c.

Measure the voltage between ST relay terminal 1 and body ground.

HINT:
·

Make a note of the measured voltage as it will be necessary for the inspecting the change in voltage in the next step. As the next step should be conducted under the same conditions, keep the ignition switch ON and do not install the ST relay.

·

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.

·

If any voltage was measured with the ignition switch ON, one of the following malfunctions is suspected:

-

Short to +B in the circuit of a connected ECU or the switch.

-

Short to +B in the wire harness.





Result:
Proceed to
NEXT



NEXT

4.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (CHECK FOR SHORT CIRCUIT)
4.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (CHECK FOR SHORT CIRCUIT)
A426617C01
2.24,0.958 2.552,1.156 0.313,0.198 10 false *2 0.104,0.052 0.417,0.25 0.313,0.198 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
*2 ST Relay


a.

Disconnect the park/neutral position switch assembly connector.


b.

Measure the voltage between ST relay terminal 1 and body ground and compare it to the voltage measured in the previous step.

Result:
Result Proceed to
The voltage between ST relay terminal 1 and body ground does not change when the connector is disconnected A
The voltage between ST relay terminal 1 and body ground changes when the connector is disconnected B


HINT:
·

If the voltage is the same before and after disconnecting the connector, the park/neutral position switch assembly is normal.

·

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.





A

5.INSPECT ENGINE STOP AND START ECU (CHECK FOR SHORT CIRCUIT)

B

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

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


5.INSPECT ENGINE STOP AND START ECU (CHECK FOR SHORT CIRCUIT)
A426617C01
2.24,0.958 2.552,1.156 0.313,0.198 10 false *2 0.104,0.052 0.417,0.25 0.313,0.198 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
*2 ST Relay


a.

Disconnect the engine stop and start ECU connector.


b.

Measure the voltage between ST relay terminal 1 and body ground and compare it to the voltage measured in the previous step.

Result:
Result Proceed to
The voltage between ST relay terminal 1 and body ground does not change when the connector is disconnected A
The voltage between ST relay terminal 1 and body ground changes when the connector is disconnected B


HINT:
·

If the voltage is the same before and after disconnecting the connector, the engine stop and start ECU is normal.

·

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.





A

6.INSPECT ECM (CHECK FOR SHORT CIRCUIT)

B

REPLACE ENGINE STOP AND START ECU

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


6.INSPECT ECM (CHECK FOR SHORT CIRCUIT)
A426617C01
2.24,0.958 2.552,1.156 0.313,0.198 10 false *2 0.104,0.052 0.417,0.25 0.313,0.198 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
*2 ST Relay


a.

Disconnect the ECM connector.


b.

Measure the voltage between ST relay terminal 1 and body ground and compare it to the voltage measured in the previous step.

Result:
Result Proceed to
The voltage between ST relay terminal 1 and body ground does not change when the connector is disconnected A
The voltage between ST relay terminal 1 and body ground changes when the connector is disconnected B


HINT:
·

If the voltage is the same before and after disconnecting the connector, the ECM is normal.

·

DTCs may be stored during this inspection. Check for DTCs and clear them using the GTS.





A

7.CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY - SMART KEY ECU ASSEMBLY - ENGINE STOP AND START ECU - ST RELAY)

B

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


7.CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY - SMART KEY ECU ASSEMBLY - ENGINE STOP AND START ECU - ST RELAY)
a.

Disconnect the ECM connector.


b.

Disconnect the park/neutral position switch assembly connector.


c.

Disconnect the smart key ECU assembly connector.


d.

Disconnect the engine stop and start ECU connector.


e.

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.


f.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A46-29 (STA), C62-9 (L), O62-1 (STA), A124-21 (STA) or 1 (ST relay) - Other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

CHECK SMART ENTRY AND START SYSTEM (CHECK FOR STA TERMINAL VOLTAGE OF SMART KEY ECU ASSEMBLY)

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model (NR Series))>TERMINALS OF ECU


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR