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DI-993
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
DIDV8-01
CIRCUIT INSPECTION
DTC P0705 Transmission Range Sensor Circuit Mal-
function (PRNDL Input)
CIRCUIT DESCRIPTION
The park/neutral position switch detects the shift lever position and sends signals to the ECM.
DTC No. DTC Detection Condition Trouble Area
(2-trip detection logic)
S All switches are OFF simultaneously for NSW, R, N, D, 3 and S Open or short in park/neutral position switch circuit
P0705 2 positions. S Park/neutral position switch
S 2 or more switches are ON simultaneously for NSW, R, D, 3 S ECM
and 2 positions.
MONITOR DESCRIPTION
These DTCs indicate a problem with the park/neutral position switch and the wire harness in the park/neutral
position switch circuit.
The park/neutral position switch detects the shift lever position and sends a signal to the ECM.
For security, the park/neutral position switch detects the shift lever position so that engine can be started
only when the shift lever is in the P or N position.
The park/neutral position switch sends a signal to the ECM according to the shift position (NSW, R, D, 3 or
2).
The ECM determines that there is a problem with the switch or related parts if it receives more than 1 position
signal simultaneously. The ECM will turn on the MIL and store the DTC.
MONITOR STRATEGY
Related DTCs P0705 Park/neutral position switch/Verify switch input
Required sensors/Components Park/neutral position switch
Frequency of operation Continuous
Condition (A) 2 sec.
Duration
D ti
Condition (B) 60 sec.
MIL operation 2 driving cycle
Sequence of operation None
TYPICAL ENABLING CONDITIONS
Specification
Item
It
Minimum Maximum
The monitor will run whenever this DTC is
See page DI-963
not present.
Ignition switch ON
Battery voltage 10.5 V or more
DI-994
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
TYPICAL MALFUNCTION THRESHOLDS
Detection criteria Threshold
One of the following conditions is met: Condition (A) or (B)
Condition (A)
Number of the following signal input at the same time 2 or more
NSW switch
R switch
D switch ON
3 switch
2 switch
Condition (B)
All of following conditions are met
NSW switch
R switch
D switch OFF
3 switch
2 switch
COMPONENT OPERATING RANGE
Parameter Standard value
Park/neutral position switch The park/neutral position switch sends only one signal to the ECM.
DI-995
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
WIRING DIAGRAM
P1
Park/Neutral Position SW ECM
8
N P L-R
To Starter Relay E6 STAR/NSW
5 4
J/C
B D
PL L-Y L-Y
J28 J29
6
H F 11
RL G-R G-R
J28 J29 E4 R
1
G G
NL LG-B LG-B
26 J28 J29
L 9
IE1 C C 21
2 RB DL W-R W-R
J28 J29 E4 D
7
L-B E A 19
2L G-W G-W
J28 J29 E4 3
3
2
D B 10
D8 LL P-L P-L
Diode J28 J29 E4 2
8
1
B-Y
E To ABS Actuator with ECM
J8
J/C To Skid Control ECM with Acrtuator*1
E To ABS Actuator with ECM*2
B-Y I23
Cowl Side J/B RH Ignition SW
9 GAUGE 2
B-Y IG1 AM1 W
1F 1L
4 2
Engine Room R/B
ALT AM1 7
B W
2 2 IA9
1 21 2
Battery
*1: w/ VSC
*2: w/o VSC
D14234
DI-996
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
INSPECTION PROCEDURE
HINT:
According to the DATA LIST displayed by the OBD II scan tool or hand-held tester, you can read the value
of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of
troubleshooting is one method to shorten labor time.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the OBD II scan tool or hand-held tester to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Push the "ON" button of the OBD II scan tool or the hand-held tester.
(f) When you use the hand-held tester:
Select the item "DIAGNOSIS / ENHANCED OBD II / DATA LIST".
(g) According to the display on the tester, read the "DATA LIST".
Measurement Item/
Item Normal Condition Diagnostic Note
Range (display)
When the shift lever position dis-
Shift lever position is; played on the hand-held tester dif-
PNP SW Status/
PNP SW [NSW] P and N: ON fers from the actual position, ad-
ON or OFF
Except P and N: OFF justment of the PNP switch or the
shift cable may be incorrect.
S Shift lever position is 2: OFF
PNP SW Status/
LOW S Shift position L switch Push: ON
ON or OFF
S Shift position L switch Push: OFF
Shift lever position is;
PNP SW Status/
2ND 2 and L: ON
ON or OFF
Except 2 and L: OFF
Shift lever position is;
PNP SW Status/
3RD 3: ON
ON or OFF
Except 3: OFF
Shift lever position is;
PNP SW Status/
DRIVE D: ON
ON or OFF
Except D: OFF
Shift lever position is;
PNP SW Status/
REVERSE R: ON
ON or OFF
Except R: OFF
DI-997
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
1 Inspect park/neutral position switch.
Switch Side: PREPARATION:
(Connector Front View): (a) Jack up the vehicle.
(b) Disconnect the park/neutral position switch connector.
CHECK:
Measure the resistance according to the value(s) in the table
below when the shift lever is moved to each position.
OK:
P1 Shift Position Tester Connection Specified Condition
D14154
P 2 - 6 and 4 - 5 Below 1
Except P 10 k or higher
R 2-1 Below 1
Except R 10 k or higher
N 2 - 9 and 4 - 5 Below 1
Except N 10 k or higher
D 2-7 Below 1
Except D 10 k or higher
3 2-3 Below 1
Except 3 10 k or higher
2 2-8 Below 1
Except 2 10 k or higher
NG Replace park/neutral position switch
(See page AT-11).
OK
DI-998
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
2 Check harness and connector (Park/neutral position switch - ECM).
ECM: PREPARATION:
E7 E6 E5 E4 E3 (a) Connect the park/neutral position switch connector.
R(+) 2(+) (b) Turn the ignition switch ON.
CHECK:
Measure the voltage according to the value(s) in the table be-
low when the shift lever is moved to each position.
D(+) 3(+)
STAR/NSW(+)
D14155
OK:
Shift Position Tester connection Specified condition
P and N E6 - 8 (STAR/NSW) - Body ground Below 2 V
Except P and N 10 to 14 V
R E4 - 11 (R) - Body ground 10 to 14 V*
Except R Below 1 V
D E4 - 21 (D) - Body ground 10 to 14 V
Except D Below 1 V
3 E4 - 19 (3) - Body ground 10 to 14 V
Except 3 Below 1 V
2 and L E4 - 10 (2) - Body ground 10 to 14 V
Except 2 and L Below 1 V
HINT:
*: The voltage will drop slightly due to lighting up of the back up
light.
NG Repair or replace the harness or connector
(See page IN-30).
OK
Replace the ECM (See page SF-66).
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