Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM1000000019SS1 |
Model Year Start: 2018 |
Model: Sienna |
Prod Date Range: [11/2017 -
] |
Title: 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: P061512; Starter Relay Circuit Short to Battery; 2018 - 2020 MY Sienna [11/2017 - ] |
DTC
|
P061512
|
Starter Relay Circuit Short to Battery
|
MONITOR 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.
|
-
ST relay
-
Park/neutral position switch
-
Starter relay (ST) circuit
-
ECM
|
Comes on
|
DTC stored
|
-
SAE Code: P0617
-
DTC for Mexico Models: Applies
|
MONITOR STRATEGY
Related DTCs
|
P0617: Starter relay verify input signal
|
Required Sensors/Components (Main)
|
Starter relay (ST)
Park/neutral position switch
Certification ECU (smart key ECU assembly)
|
Required Sensors/Components (Related)
|
Vehicle speed sensor
Crankshaft position sensor
|
Frequency of Operation
|
Continuous
|
Duration
|
20 seconds
|
MIL Operation
|
Immediate
|
Sequence of Operation
|
None
|
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored
|
None
|
All of the following conditions are met
|
-
|
Battery voltage
|
10.5 V or higher
|
Vehicle speed
|
20 km/h (12.43 mph) or more
|
Engine speed
|
1000 rpm or higher
|
TYPICAL MALFUNCTION THRESHOLDS
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 here
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
-
Connect the Techstream to the DLC3.
-
Turn the ignition switch to ON and turn the Techstream on.
-
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
-
Turn the ignition switch off and wait for at least 30 seconds.
-
Turn the ignition switch to ON and turn the Techstream on [A].
-
Start the engine.
-
Idle the engine for 5 seconds or more [B].
-
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.
-
Enter the following menus: Powertrain / Engine / Trouble Codes [D].
-
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.
-
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
-
Input the DTC: P061512.
-
Check the DTC judgment result.
Techstream 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
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. 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 TECHSTREAM (STARTER SW)
|
(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 / Starter SW.
(e) According to the display on the Techstream, read the Data List.
Standard:
Condition
|
Starter SW
|
Ignition switch ON
|
OFF
|
(f) According to the display on the Techstream, 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 (12.43 mph) or more.
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Standard:
Condition
|
Starter SW
|
Driving at 20 km/h (12.43 mph) or more (engine speed 1000 rpm or more)
|
OFF
|
HINT:
If the result of either of the above is not as specified, proceed to the next step with the ignition switch ON, Techstream connected and Data List item "Starter SW" selected.
Result
|
Proceed to
|
NG (w/ Smart Key System)
|
A
|
NG (w/o Smart Key System)
|
B
|
OK
|
C
|
HINT:
If the starter assembly operates continuously when the ignition switch is turned ON, proceed to the next step without reading the Data List item "Starter SW" selected.
A
|
|
|
2.
|
INSPECT ST RELAY (CHECK FOR SHORT CIRCUIT)
|
(a) Enter the following menus: Powertrain / Engine / Data List / Starter SW.
(b) Remove the ST relay from the engine room relay block.
(c) According to the display on the Techstream, read the Data List.
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 Techstream.
B |
|
REPLACE ST RELAY
|
A
|
|
|
3.
|
CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)
|
*1
|
Engine Room Relay Block
|
*2
|
ST Relay Holder
|
HINT:
The purpose of this step is to check for ST relay terminal voltage under abnormal conditions.
(a) Remove the ST relay from the engine room relay block.
(b) Turn the ignition switch to ON.
(c) Measure the voltage between ST relay terminal 2 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 Techstream.
-
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.
NEXT
|
|
|
4.
|
INSPECT PARK/NEUTRAL POSITION SWITCH (CHECK FOR SHORT CIRCUIT)
|
*1
|
Engine Room Relay Block
|
*2
|
ST Relay Holder
|
(a) Disconnect the park/neutral position switch connector.
(b) Measure the voltage between ST relay terminal 2 and body ground and compare it to the voltage measured in the previous step.
Result
|
Proceed to
|
The voltage between ST relay terminal 2 and body ground does not change when the connector is disconnected.
|
A
|
The voltage between ST relay terminal 2 and body ground changes when the connector is disconnected. (for 2WD)
|
B
|
The voltage between ST relay terminal 2 and body ground changes when the connector is disconnected. (for AWD)
|
C
|
HINT:
-
If the voltage is the same before and after disconnecting the connector, the park/neutral position switch is normal.
-
DTCs may be stored during this inspection. Check for DTCs and clear them using the Techstream.
A
|
|
|
5.
|
INSPECT ECM (CHECK FOR SHORT CIRCUIT)
|
*1
|
Engine Room Relay Block
|
*2
|
ST Relay Holder
|
(a) Disconnect the ECM connector.
(b) Measure the voltage between ST relay terminal 2 and body ground and compare it to the voltage measured in the previous step.
Result
|
Proceed to
|
The voltage between ST relay terminal 2 and body ground does not change when the connector is disconnected.
|
A
|
The voltage between ST relay terminal 2 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 Techstream.
A
|
|
|
6.
|
CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH - SMART KEY ECU ASSEMBLY - ST RELAY)
|
(a) Disconnect the A69 connector.
(b) Disconnect the B66 park/neutral position switch connector.
(c) Disconnect the A35 power management control ECU connector.
(d) Remove the ST relay from the engine room relay block.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A69-43 (STA), B66-9 (L), A35-2 (STA) or 2 (ST relay) - Other terminals
|
Always
|
10 kΩ or higher
|
OK |
|
CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START (CHECK FOR STA TERMINAL VOLTAGE OF POWER MANAGEMENT CONTROL ECU)
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
7.
|
INSPECT ST RELAY (CHECK FOR SHORT CIRCUIT)
|
(a) Enter the following menus: Powertrain / Engine / Data List / Starter SW.
(b) Remove the ST relay from the engine room relay block.
(c) According to the display on the Techstream, read the Data List.
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 Techstream.
B |
|
REPLACE ST RELAY
|
A
|
|
|
8.
|
CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)
|
*1
|
Engine Room Relay Block
|
*2
|
ST Relay Holder
|
HINT:
The purpose of this step is to check for ST relay terminal voltage under abnormal conditions.
(a) Remove the ST relay from the engine room relay block.
(b) Turn the ignition switch to ON.
(c) Measure the voltage between ST relay terminal 2 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 Techstream.
-
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.
NEXT
|
|
|
9.
|
INSPECT PARK/NEUTRAL POSITION SWITCH (CHECK FOR SHORT CIRCUIT)
|
*1
|
Engine Room Relay Block
|
*2
|
ST Relay Holder
|
(a) Disconnect the park/neutral position switch connector.
(b) Measure the voltage between ST relay terminal 2 and body ground and compare it to the voltage measured in the previous step.
Result
|
Proceed to
|
The voltage between ST relay terminal 2 and body ground does not change when the connector is disconnected.
|
A
|
The voltage between ST relay terminal 2 and body ground changes when the connector is disconnected. (for 2WD)
|
B
|
The voltage between ST relay terminal 2 and body ground changes when the connector is disconnected. (for AWD)
|
C
|
HINT:
-
If the voltage is the same before and after disconnecting the connector, the park/neutral position switch is normal.
-
DTCs may be stored during this inspection. Check for DTCs and clear them using the Techstream.
A
|
|
|
10.
|
INSPECT ECM (CHECK FOR SHORT CIRCUIT)
|
*1
|
Engine Room Relay Block
|
*2
|
ST Relay Holder
|
(a) Disconnect the ECM connector.
(b) Measure the voltage between ST relay terminal 2 and body ground and compare it to the voltage measured in the previous step.
Result
|
Proceed to
|
The voltage between ST relay terminal 2 and body ground does not change when the connector is disconnected.
|
A
|
The voltage between ST relay terminal 2 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 Techstream.
A |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (STA SIGNAL CIRCUIT)
|
|