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DI-723
DIAGNOSTICS - ENGINE (2UZ-FE)
DIDRT-01
DTC P0617 Starter Relay Circuit High
MONITOR DESCRIPTION
While the engine is being cranked, the battery positive voltage is applied to terminal STA of the ECM.
If the vehicle is being driven and the ECM detects the starter control signal (STA), the ECM concludes that
the starter control circuit is malfunctioning. The ECM will turn on the MIL and a DTC is set.
DTC No. DTC Detection Condition Trouble Area
When all conditions (a), (b) and (c) are satisfied for 20 seconds
S Park/neutral position switch
with battery (+B) voltage 10.5 V or more
S Starter relay circuit
P0617 (a) Vehicle speed y 12.4 mph (20 km/h)
S Ignition switch
(b) Engine revolution y 1,000 rpm
S ECM
(c) STA signal ON
MONITOR STRATEGY
Related DTCs P0617 Starter signal error
Main sensors/components Starter signal
Required sensors/components
R i d / t
Related sensors/components Vehicle speed sensor, Engine speed sensor
Frequency of operation Continuous
Duration 20 sec.
MIL operation Immediate
Sequence of operation None
TYPICAL ENABLING CONDITIONS
Specification
Item
It
Minimum Maximum
The monitor will run whenever this DTC is
See page DI-437
not present
Battery voltage 10.5 V -
Vehicle speed 12.4 mph (20 km/h) -
Engine RPM 1,000 rpm -
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria Threshold
Starter signal ON
DI-724
DIAGNOSTICS - ENGINE (2UZ-FE)
WIRING DIAGRAM
Access Cab, Standard Cab:
ECM
V-W (*2)
A22
J9 J19 ACC Cut Relay
J/C J/C 17
V-W (*1) V-W (*1) V-W G
E3 ACCR
D D C C 2 1
J/C
22 5
J26 J27
3 4
L-R
To ACC Fuse
I23
Ignition SW
W
2 AM1 ACC 3
Driver Side J/B
3 STA 6 12
R-L
1I 1F E5 STSW
7 AM2 ST2 8
8
L-R
E6 NSW
8 4
W-R P1
IA9
Park/Neutral
Position SW
5
7 P
IA9
A J28
A 11
P
J28 E5 STA
*1: w/ Engine Immobiliser System E J28
*2: w/o Engine Immobiliser System
cmc0491
DI-725
DIAGNOSTICS - ENGINE (2UZ-FE)
P
8
T13 SRLY
Engine Room R/B No.2
ECU-B
V-W B
2 2
2 1
3
SHORT PIN
T13 ST
2
1 2
ALT AM1
W
2
1 2 1 2
AM2
W-R
2
1 2
B-L (*3) ST3 8 25
B (*4) G-Y G-Y
2 2 J26 J27
1 2
ST Relay
34 17
B-W G-Y
2 2 J26 J27
5 3
10 27
G-R G-R
2 2 J26 J27
1 2
12 29
G-R W-B
J26 J27
Starter
6 1
B-W
EB2 S2 A
1 J23
B-L J/C
S1 A
W-B
Battery IE
*3: Towing Package
*4: Except Towing Package
cmc0555
DI-726
DIAGNOSTICS - ENGINE (2UZ-FE)
Double Cab:
I23
A22
Ignition SW ECM
ACC Cut Relay
P To ACC Fuse
1 AM1 ACC 3 3 4
17
R
E3 ACCR
2 1
B-W
5 AM2 ST2 4
W-R
Sub J/B No.3
W-R 10 10
W-R
3C 3D
W-L
Sub J/B No.4
9 19
Driver Side J/B 4A 4A
1 AM1 6
W
1L 1C
1 2 W-R
7 3
W-R
1J 1C
5
3 2 P1
W-R Park/Neutral
1J 1E Position SW
4
P 8
6 5 L-R
E6 NSW
1J 1C
J/C
B-W A A 11
P
J28 J28 E5
E
J29
P
cmc0492
DI-727
DIAGNOSTICS - ENGINE (2UZ-FE)
Engine Room J/B and R/B No.2
ST Relay
6
B-R B-W
2 2 EB2
5 3
W-B
2
1 2
4
P P
2 IJ4
3 ST
2E B-W
STA 8
B-W B
2 2 IJ4
1 2
8 ECU-B Short Pin
W-R
2C
B
1 AM2 1 12
W-R E5 STSW
2C 2D
W
B
F13 A
FL Block 10 J34
ALT J/C
B 1 S2 1
A
2 12 B-L
S1
Starter
W-B
Battery EA
cmc0556
DI-727-1
DIAGNOSTICS - ENGINE (2UZ-FE)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, as well as other
data from the time when a malfunction occurred.
1 Connect hand-held tester, and check STA signal.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON, and push the hand-held tester main switch ON.
(c) When using hand-held tester, enter the following menu: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / STARTER SIG.
CHECK:
Read the STA signal on the hand-held tester while the starter operates.
OK:
Standard:
Ignition Switch Position ON START
STARTER SIG OFF ON
OK Go to step 5.
NG
2 Check park/neutral position switch (See page DI-1159).
NG Replace park/neutral position switch.
Go to next step 5 after the replacement.
OK
3 Check ignition switch (See page BE-37).
NG Replace ignition switch.
Go the next step 5 after the replacement.
OK
DI-727-2
DIAGNOSTICS - ENGINE (2UZ-FE)
4 Connect hand-held tester, and check STA signal.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON, and push the hand-held tester main switch ON.
(c) On the hand-held tester, enter the following menu: DIAGNOSIS / ENHANCED OBD II / DATA LIST
/ ALL / STARTER SIG.
CHECK:
Read the STA signal on the hand-held tester while the starter operates.
OK:
Standard:
Ignition Switch Position ON START
STARTER SIG OFF ON
NG Repair or replace harness or connector.
OK
5 Check DTC reoccur
PREPARATION:
(a) Connect the hand-held tester.
(b) Turn the ignition switch ON and hand-held tester main switch ON.
(c) Clear DTCs (see page DI-462).
(d) Drive the vehicle more than 25 mph (40 km/h) for 20 seconds or more.
CHECK:
Check DTC reoccur.
RESULT:
Display (DTC Output) Proceed to
P0617 A
No DTC output B
A Replace ECM (See page SF-82).
B
Check for intermittent problems
(See page DI-430).
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