1Nz-Fe Engine Control. Dtc P0617 Starter Relay Circuit High

The cranking holding control system provides a current to the starter when the ECM detects the ignition switch's start signal (STSW). When the ECM judges that the engine has started, the system cuts the current to the starter. When the ECM receives the STSW signal, it turns on the ACC (Accessory) relay, which prevents flickering of the combination meter, clock and audio system. Also, the ECM sends a signal to the ECM's STAR terminal. Then the STAR output signal travels through the Park/Neutral Position (PNP) switch to the ST relay, causing the starter to activate. When the engine is cranking, the starter operation signal is sent to the ECM's STA terminal.

Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan).
Dtc
P0617 Starter Relay Circuit High

While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM.
If the ECM detects the starter signal (STA) 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) for over 20 seconds.

DTC No.	DTC Detection Condition	Trouble Area
P0617	When conditions (a), (b) and (c) met for 20 seconds (1 trip detection logic): (a) Vehicle speed 20 km/h (12.43 mph) or more (b) Engine speed 1000 rpm or more (c) STA signal ON	Park/Neutral Position (PNP) switch (A/T^) Clutch start switch (M/T^) Starter relay circuit Ignition switch ECM

^*: A/T denotes Automatic Transaxle models and M/T denotes Manual Transaxle models.

MONITOR STRATEGY

Related DTCs	P0617: Starter signal
Required Sensors/Components (Main)	STARTER relay, PNP switch, Clutch start switch and Ignition switch
Required Sensors/Components (Related)	Vehicle Speed Sensor (VSS), Crankshaft Position (CKP) sensor
Frequency of Operation	Continuous
Duration	20 seconds
MIL Operation	Immediate
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present	None
Battery voltage	10.5 V or more
Vehicle speed	20 km/h (12.43 mph) or more
Engine speed	1000 rpm or more

TYPICAL MALFUNCTION THRESHOLDS

Starter signal

CONFIRMATION DRIVING PATTERN

Connect the Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON and turn the Techstream on [A].
Idle the engine for 5 seconds or more [B].
Drive the vehicle at 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 and ECT / Trouble Codes [D].
Read pending DTCs.
HINT:
1. If a pending DTC is output, the system is malfunctioning.
2. If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
Input the DTC: P0617.

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
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

HINT:

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

If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs (YARIS_NCP93 RM000000PDK0QGX.html).
HINT:
1. If a permanent DTC is output, the system is malfunctioning.
2. If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

The following troubleshooting flowchart is based on the premise that the engine is cranked normally.
If the engine will not crank, proceed to the problem symptoms table (YARIS_NCP93 RM000000PDG0JIX.html).
Read freeze frame data using the Techstream. 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.

1.READ VALUE USING TECHSTREAM (STARTER SIGNAL)

Connect the Techstream to the DLC3.

Turn the ignition switch to ON.

Turn the Techstream on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

Check the value displayed on the Techstream when the ignition switch is turned to the ON and START positions.

OK:

Ignition Switch Positions
Starter Signal
ON
Close
START
Open

Go to step 2

CHECK FOR INTERMITTENT PROBLEMS (YARIS_NCP93 RM000000PDQ0NOX.html)

2.INSPECT PARK / NEUTRAL POSITION SWITCH (A/T) OR CLUTCH START SWITCH (M/T)

Inspect the Park/Neutral Position (PNP) switch (for A/T models).
1. Disconnect the C27 PNP switch connector.
2. Check the resistance when the transmission gear selector lever is moved to each position.
  Standard resistance:
  Tester Connections
  Gear Selector
  Lever Positions
  Specified Conditions
  2 - 6, 4 - 5
  P
  Below 1 Ω
  1 - 2
  R
  2 - 9, 4 - 5
  N
  2 - 7
  D
  2 - 3
  2
  2 - 8
  L
  4 -5
  Except P and N
  10 kΩ or higher
  2 - 5
  All shift lever positions
3. Reconnect the PNP switch connector.

Inspect the clutch start switch (for M/T models).
1. Disconnect the A16 clutch start switch connector.
2. Check the resistance when the clutch start switch is ON and OFF.
  Standard resistance:
  Tester Connections
  Switch Positions
  Specified Conditions
  1 - 2
  ON (pushed)
  Below 1 Ω
  1 - 2
  OFF (free)
  10 kΩ or higher
  Result
  Result
  Proceed to
  NG
  A
  OK
  B
3. Reconnect the clutch start switch connector.

Go to step 5

A

3.REPLACE PARK / NEUTRAL POSITION SWITCH (A/T) OR CLUTCH START SWITCH (M/T)

Replace the PNP switch (for A/T models) (YARIS_NCP93 RM00000191D031X.html).

Replace the clutch start switch (for M/T models) (YARIS_NCP93 RM000001B3D00TX.html).

NEXT

4.READ VALUE USING TECHSTREAM (STARTER SIGNAL)

Connect the Techstream to the DLC3.

Turn the ignition switch to ON.

Turn the Techstream on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

Check the value displayed on the Techstream when the ignition switch is turned to the ON and START positions.

OK:

Ignition Switch Positions
Starter Signal
ON
Close
START
Open

Go to step 5

END

5.INSPECT IGNITION SWITCH

Disconnect the D8 ignition switch connector.

Check the resistance.

Standard resistance:

Tester Connections	Ignition Switch Positions	Specified Conditions
All Terminals	LOCK	10 kΩ or higher
2-4	ACC	Below 1 Ω
1-4, 1-6, 2-4, 3-4, 5-6	ON	Below 1 Ω
4-7, 5-7	ON	10 kΩ or higher
1-4, 3-4, 5-6, 5-7	START	Below 1 Ω

Result
Result	Proceed to
NG	A
OK	B

Reconnect the ignition switch connector.

Go to step 7

A

6.REPLACE IGNITION SWITCH

Replace the ignition switch (YARIS_NCP93 RM000000WC701WX.html).

NEXT

7.READ VALUE USING TECHSTREAM (STARTER SIGNAL)

Connect the Techstream to the DLC3.

Turn the ignition switch to ON.

Turn the Techstream on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

Check the value displayed on the Techstream when the ignition switch is turned to the ON and START positions.

OK:

Ignition Switch Positions
Starter Signal
ON
Close
START
Open

Go to step 8

END

8.REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - PNP SWITCH OR CLUTCH START SWITCH - ECM)

NEXT

9.CHECK WHETHER DTC OUTPUT RECURS (DTC P0617)

Connect the Techstream to the DLC3.

Turn the ignition switch to ON.

Turn the Techstream on.

Clear DTCs (YARIS_NCP93 RM000000PDK0QGX.html).

Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

Read DTCs.

Result
Display (DTC Output)
Proceed To
P0617
A
No output
B

END

REPLACE ECM (YARIS_NCP93 RM000001CN002AX.html)

Tester Connections	Gear Selector Lever Positions	Specified Conditions
2 - 6, 4 - 5	P	Below 1 Ω
1 - 2	R
2 - 9, 4 - 5	N
2 - 7	D
2 - 3	2
2 - 8	L
4 -5	Except P and N	10 kΩ or higher
2 - 5	All shift lever positions	10 kΩ or higher

Tester Connections	Switch Positions	Specified Conditions
1 - 2	ON (pushed)	Below 1 Ω
1 - 2	OFF (free)	10 kΩ or higher