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DI-595
DIAGNOSTICS - CRUISE CONTROL SYSTEM
DI08V-24
Park/Neutral Position Switch Circuit
CIRCUIT DESCRIPTION
When the shift position is put in except D position, a signal is sent from the park/neutral position switch to
the ECU. When this signal is input during cruise control driving, the ECU cancels the cruise control.
WIRING DIAGRAM
Translate ECU
(*1) (*1)
B-R 12 26 W-R Cruise Control
D CCS
J/B No.3 ECU
7 3 13 3
B-R B-R B-R (*2)
IH2 3D 3D C15 D
D12 J17
PNP Switch DIODE
7 (*3) J/C
R-L R-L GR (*3)
IH1
10 2 2 3 A A
P (*3)
1
R-L (*4)
GR
6 CIG 6
L
1K 1J
ACC 3
W-L AM1 1 GAUGE 2
IG1 B-Y
2 1K 1D
4
Driver Side J/B No.1 Engine Room J/B No.2
1 AM1 1 2 2
W
1K 1B 2L 2D
1 2
FL BLOCK
FL MAIN 1 4
B-L ALT INP W
F8 F8
Battery
(*1) w/ VSC (*3) w/ Wireless Door Lock Control
(*2) w/o VSC (*4) w/o Wireless Door Lock Control
I18651
2001 SIENNA (RM787U)
Author : Date : 749
DI-596
DIAGNOSTICS - CRUISE CONTROL SYSTEM
INSPECTION PROCEDURE
1 Check starter operation.
CHECK:
Check that the starter operates normally and that the engine starts.
NG Proceed to engine troubleshooting (See page
DI-1 ).
OK
2 Input signal check.
PREPARATION:
Input Signal Indicator Light
Blinking Pattern See input signal check on page DI-563 .
CHECK:
Turn PNP switch ON SW ON Check the indicator light when shifting into except D position.
OFF (Shift to Light
SW OFF OK:
except D position) OFF
The indicator light goes off when shifting into except
D position.
OK Proceed to next circuit inspection shown on
problem symptom table (See page DI-572 ).
NG
2001 SIENNA (RM787U)
Author : Date : 750
DI-597
DIAGNOSTICS - CRUISE CONTROL SYSTEM
3 Check voltage between terminal D of cruise control ECU connector and body
ground.
PREPARATION:
ON
Turn ignition switch ON.
CHECK:
D Measure voltage between terminal D of ECU connector and
body ground when shifting into D position and other positions.
OK:
Shift Position Voltage
D position 10 - 14 V
Other positions Below 1 V
(-) (+)
AB0119
I00139
I00175
OK Proceed to next circuit inspection shown on
problem symptom table (See page DI-572 ).
NG
4 Check harness and connector between cruise control ECU and park/neutral
position switch (See page IN-31 ).
NG Repair or replace harness or connector.
OK
Check and replace cruise control ECU (See
page IN-31 ).
2001 SIENNA (RM787U)
Author : Date : 751
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